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BOND
Kuraray Noritake Dental looks to the
future of dentistry
Tested by your colleaguesCLEARFIL™ Universal Bond Quick
Co-operationof Polymakerand Kuraray
4 6 22
VOLUME 3 | 10/2017
NEWSLETTERFOR
PROFESSIONALS IN DENTISTRY
Kuraray Europe GmbHBU Medical ProductsPhilipp-Reis-Str. 465795 Hattersheim am MainDeutschland
Phone +49 (0) 69-305 85 980Website www.kuraraynoritake.eu
Contents
Your Contact
Co-operation ofPolymaker and Kuraray
CLEARFIL MAJESTY™
ES Flowa universalflowablecomposite
Future of dentistry
Zirconia bonding
Kuraray Noritake Dental looks to the
future of dentistry4Tested by yourcolleaguesCLEARFIL™ Universal Bond Quick
6Zirconia bondingwith PanaviaTM cements8CLEARFIL MAJESTY™ ES Flow
A universal flowable composite
10Predictable ultimate aesthetics12ConsEuro201716KATANA™ Zirconia UTML and STML20The Dental Advisor
Editor’s Choice23New Paradigm in Aesthetic Restoration24Co-operation ofPolymaker and Kuraray30
BOND2
4
8
10
30
But, unlike other sectors, the dental industry is more about evolution rather than revolution. We tend to take existing products and introduce new materials and technologies to deliver enhanced performance as well as offering dental professionals an ever-wider range of treatment options.
Take new CLEARFIL™ Majesty ES Flow, for example. Flowables have been around for some time so you might be forgiven for thinking that there’s nothing new there. But look a little closer and you will see significant improvements in both handling and performance.
CLEARFIL™ Majesty ES Flow sets itself apart thanks to a unique combination of filler particles and surface coating technology that makes it stronger. It’s also easier to handle and doesn’t require polishing after application.
Our PANAVIA™ V5 utilizes a whole range of new technologies such as a catalyst system that delivers enhanced curing and outstanding adhesion to a variety of substrates.
With the improved aesthetics of CAD CAM zirconia, like our KATANA™ multi-layered range and the need for more and more minimal invasive treatments, the subject
of adhesive cementation with zirconia is extremely topical. Thanks to the combination of these products and technologies, dentists can now benefit from different treatment options.
The President of Kuraray Noritake Dental, Kiyoyuki Arikawa, has given a clear indication of where our business will be heading in the near future. Plans are afoot to introduce ever-stronger CAD CAM materials such as zirconia discs for labs and zirconia blocks for chair side milling machines, all with aesthetics that are equivalent to, or better than, products containing glass.
Improvements are being made to direct and indirect composite resins utilizing new organic and inorganic technologies. Cementing materials will deliver a more uniform result and improved matching CAD CAM requirements. Last but not least, 3D printing technology will result in advances to permanent restorative materials.
The strategy behind all these developments is clear: the introduction of innovative materials that deliver consistent performance with zero compromise on quality. This issue of BOND aims to provide a deeper insight into these new technologies and how they help Kuraray products to stand head and shoulders above the competition.
Joost NederkoornHead of European Marketing
In a world where many industries launch new products and technologies in rapid succession, it’s not surprising that dental professionals are worried that if they take their eye off the ball they could miss out.
What’s new in dentistry?
BOND 3
Kuraray Noritake Dental looks to the future of dentistry.
An Interview with Kiyoyuki Arikawa, President of Kuraray Noritake Dental Inc.
Composite resins (filling materials) Crown and bridge materials (crown restorations)
Bonding agents Cements
Q1 Please give us an overview of Kuraray Noritake Dental Inc.
Our company was established in April 2012, through the integration of Kuraray Medical Inc., a member company of the Kuraray Group, and Noritake Dental Supply Co., Ltd., a member company of the Noritake Company Group. We are now playing the leading role in the conduct of the Kuraray Group’s medical business. Kuraray Medical had the edge in organic dental materials, including
dental bonding agents, composite resins, and cements, chiefly under the “Clearfil” brand. Meanwhile, Noritake Dental Supply’s strengths were in inorganic dental materials, including dental zirconia and porcelain, mainly under the “KATANA” brand. Taking advantages of both companies’ specialties and technological competencies as well as synergy in the areas of development, production, and sales, Kuraray Noritake Dental is now aggressively expanding its dental business in Japan and abroad.
Fig. 1 Schematic dental treatment diagram
Q2 How are Kuraray Noritake Dental’s products used to treat teeth?
I suppose just about everyone has gotten some kind of dental treatment at least once, for example for a decayed tooth. The treatment of a decayed tooth usually consists of removing the carious tooth structure and filling the tooth with filling material or fitting the remainder of the tooth with a crown. Our company is engaged mainly in the development, manufacture and sale of products used for dental treatment, such as filling materials (for direct restorations) and crowns (indirect restorations) (Figure 1).
Various kinds of metal materials have long been used for such treatments. However, in recent years we have seen a tendency toward the preference by patients of the use of more attractive materials that make the treatment or restoration less conspicuous. The recent surge in the price of rare metals, some of which are used as dental materials, has also accelerated the trend to metal-free restorations. This is the background against which our products have become highly acclaimed in the dental industry in Japan and abroad, because they are produced by making use of combinations of organic and inorganic material technologies, processing and adhesion.
Brighten your smileand keep it healthy
BOND4
Q3 Could you tell us about your company’s current business plans?
We are now moving toward expanding our business, following our “GS-STEP” mid-term management plan. This proposes that we enhance our major fields and expand the number of fields we do business in. In terms of expansion, we are stepping up our efforts to extend our product line through integration with Noritake Dental Supply, promote the development of esthetic and highly functional dental materials that replace metal, and take full advantage of CAD/CAM1) technology.
The digitization of dental treatment has recently been progressing rapidly, leading to a demand for highly esthetic and versatile materials that are suitable for CAD/CAM restorations. This is a field in which we have lots of strengths, and we expect our business to really take off, here. On the other hand, to enhance our major fields, we are focusing on making further improvements of product quality, including that of our dental bonds, composite resins, cements, and crown porcelains, while accelerating our advance into overseas markets.
Q5 Could you tell us about your plans to expand your global scope?
At the present time, we export to over 90 countries around the world, with locations in the U.S., Europe, and China, in addition to Japan. The percentage of sales abroad keeps increasing. To cope with growing overseas demand, we have distributors in major countries that provide swift and effective support to dentists around the world, and carry out vigorous marketing activities and product sales. To extend our global reach, we are pushing ahead with tie-ups with medical device manufacturers abroad. We intend that these activities result in our becoming an influential corporation that is a worldwide dental care trend-setter.
Q6 What do you think your company’s future business strategy will be?
In Japan we have a larger and larger percentage of citizens living well into old age. The role of dentistry as the profession that does the most to maintain health inside the mouth is becoming ever more important. The number of residual teeth retained by middle-aged and elderly citizens has increased, partly thanks to the 8020 Campaign2), but the incidences of caries and periodontal disease have also increased. That is, the nature of the diseases seen in dentistry has changed quite a bit, shifting the focus of dental treatment toward the needs of middle-aged and elderly citizens. In view of all this, we plan to expand our business into dental CAD/CAM restoration as well as preventive dentistry, especially intended for elderly citizens. In addition, we are going to work on the development of more products that help extend health expectancy and that lessen the burdens during treatment on both the dentist and the patient.
We are committed to continuing our responses, as a dentistry-related company, to people’s real needs and the changing times. We will keep bringing health and smiles to people’s faces, through our contributions to dental care.
Q4 I hear that your company has been launching quite a succession of new products, recently. Please tell us about these new products that are being added to your line.
In Japan, treatments using resin crowns fabricated on a CAD/CAM system have been covered by health insurance since 2014. Coverage is presently limited to premolars (those between the anterior teeth and the molars), but it is expected to be extended to cover other teeth. In addition, we have launched some new products since 2015, making the most of the synergy of the integration of Kuraray Medical and Noritake Dental. In 2017, we are planning to launch a new resin block product that allows the fabrication of restorations that look much more like natural teeth. It is based on our multi-layering technology, which has grown out of the development of zirconia and its great esthetic properties. Then, moving on to new solutions, we are considering establishing our own CAD/CAM business, incorporating 3D printer technology.
A crown being fabricated on a CAD/CAM system
1 In this system, intra-oral conditions are converted to digital data, which are then available for the design and fabrication of prosthetic restorations, such as crowns, using a computer.
2 A campaign encouraging people to retain more than 20 of their own teeth until they are 80 years of age, which has been conducted since 1989 by the Ministry of Health and Welfare (now the Ministry of Health, Labour and Welfare) and the Japan Dental Association.
BOND 5
10/10
Tested by your colleagues
Graduated from the RUG as a dentist in 1993 and has been working as a general dentist in Ledeberg since 1994, initially in a solo practice and now as member of a group practice. USER-FRIENDLINESS■ A1: General ease of use 10/10 ■ A2: Simplicity of procedure: 10/10 ■ A3: Speed of procedure: 10/10
Bonding effective immediately with or without etching: apply - dry - light cure. A particularly wide range of applications.
BENEFITS■ Easier and shorter procedure leading to reduced risk of
error, also by assistants. ■ Universal adhesive: primer - bonding - silan and metal
primer all in one. ■ Treatment suitable for use with sensitive teeth/ exposed
dentine.
WHY OPT FOR...■ An innovative product which offers nothing but benefits!
Graduated from the KUL in 1988. Working in Sint-Katelijne-Waver. USER-FRIENDLINESS■ A1: General ease of use 10/10 ■ A2: Simplicity of the procedure: 10/10 ■ A3: Speed of the procedure: 10/10
Twenty five years ago the bonding technology was laborious (etching, primer, adhesive, bonding) and now it’s as easy as can be!
BENEFITS■ Very easy to use and apply (no waiting!),
blow dry and light cure.
WHY OPT FOR...■ Ease of use
10/10
CAPPELLE DENTAL PRACTICE KATHLEEN CAPPELLE
DENTIST GEERT VERSYCK1. 2.
BOND6
What could be better than the opinion of a colleague who has tried a product themselves, and who can actually tell you about the ways in which a new innovation performs – or fails to perform – well? Four dentists were given a package of CLEARFIL UNIVERSAL BOND QUICK BY KURARAY NORITAKE. Meet our test panel, and hear from them exactly what they think of our new product.
Two years ago, Smiledent moved to a new location on the site of the former Music School at Ieper. This gave us the opportunity, backed up by the commitment and passion of the dentists and assistants from the outset, to develop into an easy-going multidisciplinary group practice with fresh human capital. USER-FRIENDLINESS■ A1: General ease of use 9/10 ■ A2: Simplicity of the procedure: 9/10 ■ A3: Speed of the procedure: 9/10
A single small bottle that doesn’t take up much space. Can be easily controlled, as well as being hygienic.
BENEFITS■ The thin film layer is easy to apply quickly.
WHY OPT FOR...■ Although I personally prefer the three-step method, I
am open to evidence-based studies which may well demonstrate that Kururay’s CLEARFIL Universal Bond Quick performs equally as well as the three-step process.
Born in Dubrovnik on 23rd February, 1977, Ana Dileo started her study at VUB in 1995 and graduated in 2001. A general dentist with an affinity for tooth conservation and prosthetic dentistry, she has her own two-chair dental practice in Wilrijk and operates with an assistant. Yoni is her right hand woman, and it is thanks to her that operations run so smoothly. In September she will be welcoming a second trainee, and hopes to build a close collaboration for the future.
USER-FRIENDLINESS■ A1: General ease of use 8/10 ■ A2: Simplicity of the procedure: 9/10 ■ A3: Speed of the procedure: 9/10
Despite being very satisfied with CLEARFIL S3 Bond Plus as it is, I was quickly convinced; much easier to use, especially for glass- fibre core build-up, and fewer steps. In other words: much more convenient. Correct bonding.
BENEFITS■ Quick releases of fluoride, thin layer, single bottle, etching is not
necessary but is permitted for those practitioners who prefer to use it.
WHY OPT FOR...■ Considerably reduced risk of error, single bottle, no need to apply
multiple layers, rubbing for 20 seconds, saves so much time!
9/10 8.7/10
PHILIPPE DOCHYLTH 1989
DILEO-DENT PRACTICE ANA DILEO3. 4.
BOND 7
TYPE
Dual-cure resin cement with primers (PANAVIA™ V5 Tooth Primer and CLEARFIL™ CERAMIC PRIMER PLUS)
FOR
• Zirconia• Lithium Disilicate (including e.max1)• Metal (including PFM, Titanium)• Composite Resin Block
RECO
MM
END
ED
APPL
ICAT
ION
S • Crown• Veneer• Inlay/Onlay• Bridge (including Maryland bridge)
FEAT
URES
• MDP inside (both primers)• Exceptionally high bond
strength to dentin• Amine-free+: color stable• 5 Esthetic shade choices
SHAD
ES
• Universal (A2)• Clear• White• Brown (A4)• Opaque
+ Amine in Self-cure mode
1 Not a trademark of Kuraray Co., Ltd.
Maintain isolation for 3 minutes, or light-cure+ for translucent crowns.
6
Dispense cement and place the crown.
4
Apply Tooth Primer, leave for 20 sec, and dry.
3
Lithium Disilicate (e.g. e.max1) Preparation
Apply K-ETCHANT Syringe or hydrofluoric acid, rinse and dry.
1b
OR
Hydrofluoricacid
5 Sec
K-ETCHANTSyringe
Zirconia CrownsPreparation
Blast with alumina powder, then ultrasonic clean and dry.
1a2
Apply CLEARFIL™ CERAMICPRIMER PLUS and dry.
5
Remove the excess cement using Tack-curing method or a small brush.
1) Light-cure for 3 to 5 sec.
2) Remove with a dental explorer.
A Tack-curing B Using a small brush
1) Remove with a small brush.
2) Light-cure margins.
(Opaque shade is used for method B)
+
Basic Procedure for Zirconia & Lithium Disilicate (e.max1) Restorations with PANAVIA™ V5
ZIRCONIA BONDING WITH PANAVIA™ CEMENTS
Since 1983, with the introduction of PANAVIA™ EX resin cement
and the original MDP monomer, Kuraray has provided innovative
and exceptional technologies that have improved the quality
of adhesive dentistry and influenced the dental industry.
“…regardless of the conditioning methods, MDP-monomer based cements presented the most favorable bond values compared to those of other resin cements.”
EXCEPTIONAL ZIRCONIA BOND STRENGTHS
Systematic Review of Adhesion Studies on Zirconia
Based on Research gathered over 15 years:
M. Özcan, J Dent Res Vol# 90 A: 374, 2011 www.iadr.org
M. Özcan, J Dent Res Vol# 90 Spec Iss A: 374, 2011 www.iadr.org
H2C
H2C
H2C
H2C
CH2
CH2
CH2
CH2
O
O OO
P
H2C
H2C
CH3
CH2
CC
O
O
M-O-M-O-M-O-M-O-M-O-M
Surface of base metal alloy(e.g. Zirconia, Alumina, Ni-Cr Alloy,
Ti Alloy, SUS)
MDPMolecular Structure
Designed for all indications including Zirconia and Lithium Disilicate (e.g. e.max1)
BOND8
TYPE Dual-cure resin cement
(Self-adhesive)
FOR
• Zirconia• Metal (including PFM, Titanium)• Lithium Disilicate (when used with
CLEARFIL™ CERAMIC PRIMER PLUS)
RECO
MM
END
ED
APPL
ICAT
ION
S
• Crown• Inlay/Onlay• Bridge
FEAT
URES
• MDP inside (paste)• Extremely easy clean-up• Choice of Handmix and Automix• Stable Room Temperature Storage
(2-25ºC/36-77ºF)
SHAD
ES • Universal (A2)• Translucent• White
orHydrofluoric acid
* For a translucent restoration, light-cure.
Maintain isolation for 5 minutes.*5Light-cure for 2 to 5 seconds or chemical-cure for 2 to 4 minutes,
then remove the excess cement. 4Place the crown.3
or
1 2 Apply over the prosthetic restoration or the entire tooth surface within the cavity.*Follow the Instructions for Use of the restoration material. In the absence of specific instructions,
we recommend the following procedure:
* As necessary, blast with alumina powder, then ultrasonic clean and dry. The air pressure should be properly adjusted to suit the material and/ or shape of the prosthetic restoration, using caution to prevent chipping.
Conditioning the prosthetic restoration
Metal
Silica-based ceramic*
Metal oxide ceramic(e.g. Zirconia), Composite resin
Blast with alumina powder, then ultrasonic clean and dry.
For optimum performance when using composite resin, apply a phosphoric acid, rinse and dry. Then apply a silane coupling agent and dry.
5sec.
Apply a hydrofluoric acid or phosphoric acid, wash and dry.
Apply a silane coupling agent and dry.
Basic Procedure for Zirconia Restoration with PANAVIA™ SA Cement Plus
Zirconia is a non-silica-based ceramic, which will not respond to a traditional pretreatment method such as hydrofluoric acid etching to the internal surface. Micro-mechanical retention achieved through sandblasting and chemical bonding through adhesion (ex. MDP) are key factors for successful zirconia bonding. PANAVIA™ V5 and PANAVIA™ SA Cement Plus, which both include the MDP adhesive monomer, have high bond strength and durability to zirconia.
0
10
20
30
40
50
PANAVIA™ SA Cement PlusAutomix (Kuraray)
PANAVIA™ V5(Kuraray)
She
ar B
ond
Str
engt
h to
KA
TAN
A Z
ircon
ia (M
Pa)
Unicem 21
Automix (3M)
Initial
TC 3,000
Data Source: Kuraray Noritake Dental Inc.
ZIRCONIA BONDING WITH PANAVIA™ CEMENTS
Designed for ease of use with Zirconia
1 Not a trademark of Kuraray Co., Ltd.
Shear Bond Strength to KATANA™ Zirconia (Sandblasted)
BOND 9
CLEARFIL MAJESTY™ ES Flow is our highest filled flowable composite in terms of the submicron filler amount. Millions of submicron fillers join together and stay together over time, thanks toour exceptional Silane, creating outstanding gloss on the restoration surface.The fillers are so small that light reflections show a natural effect even after wear. The light effect of the light diffusion cluster gives you a great color adaptation. It’s all about the perfect balance between glossy submicron fillers, light diffusion clusters, resin matrix and Kuraray Noritake Dental’s Silane technology.
1 Light diffusion clusters
2 Glossy submicron filler with Kuraray Noritake Dental’s Silane technology
3 Reflecting light
4 Reflecting light after wear, no difference to be seen
1
3 4
Enamel gloss effect Enamel gloss effect after wear
2
light lightreflection reflection
Millions of fillers do the jobKuraray Noritake Dental’s Silane technology at work.
BOND10
SPECIAL FILLER TECHNOLOGY COMBINES HIGH POLISHABILITY , LIGHT DIFFUSION AND HIGH MECHANICAL PROPERTIES
We optimized the innovative filler surface treatment technology used for the development of posterior composite resin. Special submicron fillers (Fig. 1) are surface treated with a proprietary silane coupling agent (Fig. 2), which allows for the high filler loading of 75 wt%* to provide superior mechanical properties (Fig. 3). The submicron fillers provide a high level of gloss; special cluster fillers bring a light diffusion property to the product. This helps composite restorations blend to tooth structure, thereby creating highly esthetic restorations.
o
o R SiX 3
90100110120130140150160170
CLEARFILMAJESTY ES
FLOW
CLEARFILMAJESTY
FLOW
FiltekSupreme
Ultra Flowable**3M
TetricEvoFlow**
Ivoclar
CLEARFILAP-X
FiltekSupremeUltra**
3M
HerculiteUltra**Kerr
EsthexHD**
Dentsply
Flex
ural
Stre
ngth
(MPa
)
Conventional CompositesConventional Composites
0
** Not a trademark of KURARAY Co., LtdSource: Kuraray Noritake Dental Inc.
Fig. 3: FLEXURAL STRENGTH COMPARISON
* Total amount of inorganic filler may be adjusted to control paste consistency
Fig. 1: SCHEMATIC PRESENTATION OF FILLER ARRANGEMENT Fig. 2: SILANE COUPLING AGENT
Submicron Fi l lerCluster Fi l ler
3-IN-1LIGHT
DIFFUSION
HIGHMECHANICALPROPERTIES
HIGHGLOSS
BOND 11
Guided minimally-invasive correction of asymmetrical maxillary central incisors using a value-vased, Vita-endorsed direct composite layering system
By Dr Clarence P. Tam, HBSc, DDS, AAACD, FIADFE
A 23-year-old female patient was referred to my service presenting with asymmetrical central incisors and a midline diastema. Specifically, tooth 21 had suffered sharp dental trauma secondary to her walking into a glass door at 9 years of age. Following a period of orthodontics lasting 4.5 to 5 years, the restoration had been replaced multiple times and to her dissatisfaction, a diastema had also appeared beside a noticeably translucent, misshapen and oversized 21MIBL Class IV repair (Figure 1). The socially-active patient desired an invisible restorative replacement with simultaneous closure of the diastema and corrective symmetry of the 11 relative to 21 (Figure 2).
Part of the workup involved baseline photographs and measurements to be used to design the ideal proportions of the final restorations digitally. Smile Designer Pro (Toronto, Canada) is a multi-platform digital smile design software with a simulation function. It was used to determine ideal proportions, ratios and specific measurements that would allow for predictable sizing and placement of the restorations relative to the patient’s midline and adjacent teeth. As the software allows calibration Figure 1. Initial situation.
between the real and digital world, any proposed increase or decrease in dental form dimension can be easily quantified for transfer to a diagnostic wax-up and ultimately to a putty stent given the luxury of time and/or finances.
Vital nightguard bleaching is the gold standard in efficacy, safety and retention. Leonard reported no adverse effects reported relative to patient symptoms or dental structure with effects maintained in 82% of participants at the 47-month post-bleaching mark.1 Following a two-week course of custom nightguard
bleaching using 10% carbamide peroxide (Opalescence, Ultradent) and the requisite stand down period of 10-14 days to allow for oxygen dissipation from the teeth, the patient decided to proceed without a diagnostic wax up and trial smile due to social calendar time restraints. The composite system selected was Kuraray Noritake Majesty ES-2. This is currently the only value-based composite system on the market that is Vita-endorsed using only 5 enamel and dentin shades to cover the 15 Vita Classic shade tabs to the most stringent degree, lending another degree of predictability.
Predictable ultimate aesthetics
BOND12
Preparation dayKuraray Majesty ES-2 Premium shade guides were used to ascertain the enamel, dentin and effect shades prior to tooth dehydration. A1 Enamel, A1 Dentin, Trans Clear and Trans Amber were selected. It was noted that a value enhancer (i.e. Majesty Esthetic HO) may need to be used to enhance the value of the bleached teeth. The patient was anaesthetised and the old Class IV
restoration removed (Figure 3). The teeth were isolated using a curved serrated metal strip (Komet) to protect the adjacent dentition. Following micro air abrasion using 27 micron aluminium oxide, the enamel was selectively etched and a self-etching bond (ClearFil Universal Bond) applied. As there was no opportunity to complete a diagnostic wax-up, the lingual shelf was completed freehand, with the help of a Mylar strip. As the Digital Smile
Design specified a 0.9mm extension of tooth 11M into the diastema, this dictated the dimension of our lingual shelf. As this area only features enamel, A1 Enamel (A1E) was placed to full contour in this area (Figure 4). The midline was refined and shaped using Sof-Lex discs (3M ESPE) and the final dimension of 11 measured with calipers to ensure perfect mesiodistal symmetry with 21 (Figure 5).
Figure 2. Pre-operative situation showing lack of symmetry between 11 and 21, a misshapen, visible fracture repair on 21 and the midline diastema that the patient desired closed.
Figure 3. Intraoperative situation showing extent of preparation on 21.
Figure 4. Freehand: Lingual shelf-guided by pre-crimped Mylar strip replicating the DSD-guided width change. A1 Enamel.
Figure 6. Freehand: Lingual shelf of 21 guided by pre-crimped Mylar strip. Mesial frame completed. A1 Enamel.
Figure 5. Following layering to full contour with A1 Enamel,the width of 11 was measured with Cali-era to ensure perfect symmetry with the proposed 21.
Figure 7. First dentin mass layer: A1 Dentin.
BOND 13
Figure 8. Second dentin mass layer: A1 Dentin featuring incisal dentin lobule irregularity and characterisation.
Figure 9. Application of Translucent Clear in a thin worm over the incisal irregularities.
Figure 10. Both Translucent Clear and a thicker layer ofTranslucent Amber were brushed into position incisally.
Figure 12. Enamel volume layered and with primary anatomy completed, pencil markings denote planned secondaryanatomy positions.
Figure 11. Join line assessment: invisible. Value: slightly darker than desired. Solution: add a thin layer of Hollywood Opaque (HO).
Figure 13. Immediate post-operative result.
Figure 14. Final aesthetic integration demonstrating optical properties and outstanding biomimicry by the Majesty ES-2 system.
BOND14
The Mylar strip was placed on the lingual axial aspect of 21 and the lingual shelf built to a thickness of 0.3mm, extending facially to the mesiofacial line angle (Figure 6). The join line was addressed next. Two layers of A1 Dentin (A1D) were placed with the second layer extending incisally and featuring dentin lobule irregularity and small connections to the incisal edge (Figures 7-8). Following placement of a thin layer of Translucent Clear within these dentin fingerlings incisally, a thicker worm of Translucent Amber was placed at the incisal edge and brushed into place (Figures 9-10). At this stage, the join line was invisible but we still had space for additional dentin volume, needed to brighten the value of the restoration (Figure 11).
The value was toned up using a thin layer of Majesty Esthetic HO (Hollywood Opaque) before the enamel volume was replaced using A1 Enamel. Primary, secondary and tertiary anatomy were established using a combination of Sof-Lex discs (3M), red-stripe needle-point diamond burs (Mani), Astropol polishers (Ivoclar Vivadent), 45 micron diamond grit and 5 micron diamond grit progressive rubber polishers (Clinician’s Choice) (Figure 12). Finishing and polishing was completed using an Astrobrush (Ivoclar Vivadent) and 1 micron aluminium oxide paste (Enamelize, Cosmedent) in conjunction with Flexibuff discs (Cosmedent) (Figure 13).
The final result demonstrates successful placement of a seamless Class IV restoration to a dimension symmetrical to that of the contralateral tooth whilst simultaneously respecting the need to close the diastema; all guided by Digital Smile Design and facial landmarks. Clearfil Universal Bond features a time-tested, 10-MDP monomer with multi-modal functionality for a predictable bond to hydroxyapatite.
The selective etch technique was used as Erhardt et al demonstrated a detrimental effect on shear bond strength of a total etch technique using a self-etching bonding system on a dentin substrate.2 The composite system used (Majesty ES-2) displayed remarkably smooth handling and aesthetic properties that were perfectly predictable featuring ultimate aesthetics (Figure 14).
References 1. Leonard, R.H. Jr., Bentley, C, Eagle, J.C., Garland, G.E., Knight, M.C. and Philips, C. Nightguard Vital Bleaching: a long-term on efficacy, shade retention, side effects, and patient perceptions. J Esthet Restor Dent. (2001). 13(6): 357-369.2. Erhardt, M.C., Cavalcante, L.M and Pimenta, L.A. Influence of phosphoric acid pre-treatment on self-etching bond strengths. J Esthet Restor Dent. (2004) 16:(1): 33-40; discussion 41.
ABOUT THE AUTHOR
Clarence is originally from Toronto, Canada, where she completed her Doctor of Dental Surgery and General Practice Residency at the University of Western Ontario and the University of Toronto, respectively. Clarence’s practice is limited to cosmetic and restorative dentistry and she is well-published to both the local and international dental press, writing articles, reviewing and developing prototype products and techniques in clinical dentistry. She frequently and continually lectures internationally. Clarence is the Chairperson and Director of the New Zealand Academy of Cosmetic Dentistry.
She is currently one of two individuals in Australasia to hold Board-Certified Accredited Member Status with the American Academy of Cosmetic Dentistry. Clarence is an Opinion Leader for multinational dental companies Kuraray Noritake, J Morita Corp, Henry Schein NZ, Ivoclar Vivadent, Dentsply Sirona, 3M, Kerr, GC Australasia, SDI and Coltene and is the only Voco Fellow in Australia and New Zealand. She holds Fellowship status with the International Academy for DentoFacial Esthetics and is a passionate and approachable individual, committed to having an interactive approach with patients in all of her cases to maximize predictability.
“ The composite system used displayed remarkably smooth handling and aesthetic properties that were perfectly predictable featuring ultimate aesthetics...”
BOND 15
This year the ConsEuro congress took place in Bologna, home to the world’s oldest university in continuous operation. The bi-annual event was organized by the Italian Academy of Conservative and Restorative Dentistry together with the European Federation of Conservative Dentistry with their corresponding chairmen, Dr Stefano Patroni and Professor Lorenzo Breschi. With more than 1,700 attendees from 40 different countries, the congress once again featured a highly illuminating programme that attracted dental professionals from far beyond the European continent.
Throughout the three days of the event, the presenters’ focus was clearly on minimal-invasive treatments that nowadays can be performed with minimal effort thanks to advances in adhesive systems as well as latest digital technologies. Ideas were discussed and ‘best practice’ advice given for daily clinical practice taking into account the individual patient’s needs and expectations as well as the efficiency of different workflows in preserving dental and periodontal structures, and achieving excellent aesthetics and sustainable results. In addition, more elaborate biomimetic approaches were presented demonstrating the latest state-of-the-art simulation of the natural tooth anatomy.
Digital solutions with aesthetic multi-layered ceramic materials are advancing at a breathtaking pace thus a thorough understanding of the role and procedures at the interfaces is key when it comes to
long-lasting solutions and workflows in adhesive dentistry.
In that context, Kuraray Noritake’s Satellite Symposium ‘Shaping the future of aesthetics’ featured three keynote lectures with Professor Florian Beuer demonstrating the esthetic possibilities that multilayered KATANA Zirconia ceramics can offer in different clinical situations. Professor Matthias Kern focused on long-lasting FDPs adhesively bonded with PANAVIA resin cements while Dr Nicola Scotti demonstrated the benefits and versatility of Clearfil Universal Bond Quick as a modern universal bonding agent with the shortest application protocol.
At the end of the final day’s session, the lecturers were interviewed by Dr. André Rumphorst, Scientific Marketing Manager Europe, in order to summarise the presentations.
ConsEuro 2017
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Dr. Nicola Scotti
Q1 Dear Dr. Scotti, why are adhesives or bonding agents
THE key in modern dentistry?
Scientific research has provided us with adhesive systems that can interact with ever greater reliability with hard dental tissues as well as with dental materials employed for tooth restorations. This evolution deeply changed restorative dentistry, which allows the clinicians to restore teeth with less invasive preparations and restorations bonded to tooth tissue.
Q2 What are the most often errors that happen in
bonding protocols according to your experience?
The strict respect of the step-by-step protocols is fundamental to obtain reliable adhesion. I think the most frequent errors are an incomplete removal of decayed tissue, an insufficient multilayer application of bonding systems to allow tissue infiltration and a short curing process of the bonding agents.
Q3 For a long time multi-bottle or multi-step bonding
agents are considered as so-called “Goldstandard”. Are there still no alternatives?
Multimode universal adhesives show promising results both in in-vitro and in short-term clinical trials. They could represent a valid alternative to multi-step systems, but they need clinical long-term evidence for confirmation as well as the clinical indications where the clinician can use them in either etch-and-rinse or self-etch mode.
Q4 What are your experiences with Universal bonding
agents? Is there anything that the general practitioner needs to know?
I started working with universal adhesives since their introduction. Their use should be related to the clinical condition: with enamel, an etch-and-rinse approach is suggested because their low acidity is insufficient to let them interact with sound enamel. On the contrary, on dentin the self-etch approach shows good clinical results and performance. Last but not least, they need strong brushing over dental tissues, air-blowing to help to remove water and sufficient light-curing time.
Q5 What kind of bonding agent do you use in different situations,
also regarding direct and indirect procedures?
In direct procedures I use either multi-step systems or universal adhesives, let’s say in a 50%-50% ratio. In fiber-post as well as in ceramic crown luting, I use universal adhesives with dual cure activator, which is mandatory for indirect adhesive restorations. With lithium disilicate and composite onlays I still prefer multi-step etch-and-rinse systems.
Q6 In your presentation you made a nice comparison between
the Lasagne of your mother and the MDP monomer. What is the message behind your nice illustration?
Since 2012, 10-MDP appeared everywhere ! Several adhesives claim to have MDP as ingredient. However, the purity of 10-MDP, and hence its effectiveness, is dependent on the manufacturer. A recent in-vitro study showed how Kuraray’s MDP is still the most reliable and effective in producing dentin bond strengths. It’s the same with my mother’s lasagne. She taught my sister how to make them, but my mothers lasagne is still better despite the materials and the procedures being the same. The experience counts !
Q7 Clearfil Universal Bond Quick is the latest version
of a universal bonding agent from Kuraray Noritake. What are the specific advantages of this product?
The chemical technology of Kuraray’s product is well known. Thanks to its high hydrophilicity, it can be safely employed even in more difficult conditions. Water content in dentin is always present and impossible to dehydrate. Thus, an hydrophilic bonding agent such as UBQ can improve the bond strengths and sealing of dentin even with a shorter application time. Beyond that the possibility to use a dual-cure activator and the reliability of Kuraray’s MDP are other strengths of this adhesive system.
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Q1 Dear Prof. Kern, you have a lot of experience with single-
retainer resin-bonded fixed dental prostheses (RBFDP). In which situations do you recommend them and what are the benefits for the patients?
Single-retainer RBFDPs continuously gain importance especially for replacing missing single teeth in the anterior region. An attractive benefit for the patient is the minimal-invasive nature of the treatment meaning that only a small amount (less than 10%) of tooth hard tissue, limited to enamel, needs to be prepared. Compared to an elaborate implant-based solution the treatment is less expensive and less time-consuming for the patient. Worth to mention that since July 2016 RBFDPs are recommended as a standard dental treatment within the German public reimbursement healthcare system.
Q2 How are the clinical survival rates of resin-bonded fixed
dental prostheses (RBFDPs)?
First of all it’s important to know that single-retainer RBFDPs show significantly better clinical survival rates than two-retainer RBFDPs. For the single-retainer design there are study results available with survival rates after 10 years of 94% (glass-infiltrated alumina ceramic) and 98% (zirconia ceramic) respectively. The estimated survival rates in general are at least in the same range or even better than conventional FDPs.
Q3 Which type of material can be used for RBFDP‘s? What are
your recommendations?
The history of RBFDPs dates back to the ‘70s where metal frameworks were used followed by metal-ceramics with an electrolytic etching of the metal surface
in the ‘80s (Maryland FDPs). We started with alumina RBFDPs back in the ‘90s at Freiburg University and with zirconia RBFDPs we started in the early 2000s here at Kiel University. The latter offer the highest flexural strengths with the consequence that fractures became virtually inexistent. Therefore, in the rare event of a debonding, usually caused by some traumatic impact, a zirconia RBFDP can easily be rebonded which reflects another clinical advantage and further reduces the total amount of failures to a very low level.
Q4 We observe a still growing and astonishing number
of in-vitro studies where all kind of bonding procedures and pretreatments for zirconia restorations are investigated. Are there any doubts about the possibility to bond zirconia restorations?
Despite the large number of in-vitro bond strength studies the amount of clinical studies is indeed relatively low. It is true that the amount of laboratory studies about all kind of possible bonding parameters might be confusing and even create uncertainties rather than giving orientation. However, if we look on the clinical long-term results there are no doubts that zirconia and oxide ceramic restorations can be successfully bonded.
Q5 What is the ideal bonding protocol for luting a zirconia-
RBFDP? Are there any critical steps?
Air-abrasion (i.e. with 50 μm Al2O3 powder) at a moderate pressure (i.e. 1 bar) in combination with the use of phosphate monomer primers (i.e. primers containing 10-MDP) and/or luting resins (i.e. Panavia 21) provide long-term durable bonding to glass-infiltrated alumina and zirconia
ceramic under the humid and stressful oral conditions. Clinical success with RBFDPs can reliably be achieved when following a few clear rules. Generally speaking mistakes are mostly related to either an incorrect indication and/or to contamination or inaccuracies during the adhesive protocol (for further details please refer to the book RBFDPs, chapter 14 “The ten most common mistakes”, M.Kern, Quintessence Publishing, 1st edition 2017).
Q6 What makes the 10-MDP-monomer specific in comparison
to other adhesive monomers?
10-MDP as a functional monomer in Panavia adhesive resin cements has a very long history. Today this molecule is maybe the most often used adhesion promoter in numerous bonding agents and adhesive resin cements from different manufacturers. Originally invented and for a long time patented by the Japanese manufacturer Kuraray we have more than 20 years of clinical experience especially with the adhesive resin cement Panavia 21 which is based on Kuraray’s original 10-MDP monomer.
Q7 For more than three decades “Panavia” is a well-known
synonym for the class of adhesive resin cements. How do you consider the latest Panavia V5 version in comparison to earlier Panavia versions?“
Since the very first version, Panavia EX, in 1983 until the latest version, Panavia V5, in 2015 the adhesive performance of all formulations was subject of numerous publications. One of the differences with Panavia V5 is that 10-MDP is now exclusively integrated in the Panavia V5 Tooth Primer and the Clearfil Ceramic Primer Plus and no longer part of the resin cement formulation itself. The idea behind is to maintain the excellent adhesive properties and in the same time to still improve the long-term results of the marginal quality.
Prof. Dr. Matthias Kern
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Q1 For a long time the best optical properties were
associated with glass ceramics whereas highest mechanical strength was the domaine of oxide ceramics (Zirconia, Alumina). Is that still true when it comes to the selection of the right ceramic?
The new translucent zirconia materials were game changer, as they enable monolithic posterior restorations with high esthetics without requiring veneering porcelain. This might lead to less invasive preparations and better clinical performance of tooth colored occlusal surfaces on fixed prosthodontics.
Q2 Why do we observe a Renaissance for
Zirconiumoxide as indirect restorative material in the recent years?
As monolithic restorations have been well established and new translucent Zirconia materials like the Katana ML have been introduced, the combination might be an ideal solution for posterior fixed dental prosthesis. The fabrication is highly efficient and minimally invasive preparations should be possible. However, there is a lot of scientific work to be done to have clear recommendations for the clinicians and dental laboratory technicians.
Q3 What is the current clinical evidence about the antagonist
wear with Zirconia restorations?
There is only little clinical evidence for this very controversy discussed topic. One study states comparable wear at the antagonist to other ceramic materials, however, Zirconia stills seems to cause more wear as than natural enamel.
Q4 What do we need to know about Zirconia for implant-
supported restorations?
From my perspective there is still a big lack of knowledge about this topic. The most important thing is that we do not create mechanically failing implants. The restoration on top has to be weaker than the implant itself.
Q5 Where do you see the specific advantages and arguments
for using Katana Zirconia?“
The material offers esthetics and mechanical stability at a very high level. Stained and glazed monolithic posterior fixed dental prostheses are the ideal indication for this material.
Q6 Do you have preferences for the different type of Katana
materials (ML, STML, UTML) depending on the indication?
I personally use the ML for posterior fixed dental prostheses (FDPs) and STML for anterior resin bonded cantilever FDPs.
Q7 When it comes to the overall esthetic appearance of an
indirect restoration a lot of individual factors are assessed and compared. Which are more important, which are less important?
My most important factors are the shape and the surface texture of the restoration. Then color, the layering and the translucency are of second importance. This means that the material is important, but the manufacturing and finishing of the restoration is even more important.
Prof. Dr. Florian Beuer MME
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Beyond naturalMultiple porcelain layering withInternal Stain techniqueSource: Kanare Technical Center in Japan
In 2015, Kuraray Noritake Dental Inc. launched the new KATANA Zirconia UTML and STML. With this outstanding multi-layered zirconia you can reach high level of esthetic in less steps than usual working steps of layering porcelain technique. Just mill and sinter. Due to great properties of this new material, you will get a high esthetic and natural like result. On the other hand, there are many works existing in clinical situation that only professional handmade can achieve the highest esthetic level. Multiple porcelain layering and Internal Stain technique have bigger possibility sometime to show beyond natural.
Figure 1. Pre-operative photo Figure 2. After preparation
End result
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Multiple porcelain layering withInternal Stain technique
Figure 5. After wash-baking, using with Internal Stain A+ on the margin area to make a natural cervical color from Zirconia
Figure 3. Checking the fit of Zirconia Frameworks on model
Figure 6. Applying Opacious Body (OBA1) considering with mamelon structure. And apply Body A2B to make high chrome area on cervical area.
Figure 8. After applying Body porcelain(A2B), using wit Cut-Back method to make a space for applying Enamel & Luster porcelains
Figure 7. After baking Opacious Body (OBA1)
Figure 4. After 1st baking of OB as washbake
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Figure 16. Post-operative photo
Figure 10. Applying E2 for making White-band and LT1 for making incisal edge. Considering of porcelain shrinkage after baking, apply 13% bigger than final shape.
Figure 11. After baking Figure 12. Internal Stain application Applying A+ for cervical color and White for make white spots on incisal area
Figure 14. After baking and morphological correction. Then self glazing.
Figure 13. Applying E2 on Cervical area and LT1 for covering surface. And using with E2 on the edge of incisal to make Hallow Effect
Figure 9. Applying Enamel porcelain(E2) and Luster Porcelain(T Blue) for explaining translucent gradation on the edge of mamelon
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Kuraray Noritake Dental Inc.www.kuraray.com
Consultants’ Comments• “Perfect viscosity. Ease of use and speed were great.”• “I love the unit dose - so easy to use, and there was plenty of
adhesive for most procedures in each one.”• “Great for replacement of silane to prime crowns for cementation
with resin cements - will self-cure with the dual-cured resin.”• “Loved the fact that it is compatible with dual/self-cured resins and
also love that it can be used in self-cured mode with CLEARFIL DC Activator. It’s applicable for all bonding procedures.”
• “Great product. A ‘go to’ bonding agent.”• “The access hole in the unit dose was a little small.”• “I’d switch if it did not require refrigeration. Would prefer if it were a
little less thick.”• “The quick rub and cure were really helpful when the area was
difficult to isolate.”
Clinical Tips• Use the unit dose if doing quadrants or more than one tooth; use
bottle if doing only one tooth.• A gentle air stream before blowing excess away seemed to help
spread it into any areas that may have been missed by the applicator brush.
• Carefully twist and then snap-off the top of the unit dose.• Remember that you don’t have to rub this bonding agent in place for
20 seconds.
DescriptionCLEARFIL Universal Bond Quick is a fluoride-releasing, universal adhesive with MDP monomer and amide monomer chemistry that provides rapid bond technology. The amide monomer rapidly permeates dentin and enamel, eliminating wait time after application. There is no need for long rubbing application of the adhesive into the dentin. In addition, it is more hydrophilic than HEMA and absorbs less fluid. The MDP monomer creates a strong chemical bond to hydroxyapatite for excellent adhesion. When mixed with CLEARFIL DC Activator, which is available in 4 mL bottles, this bonding agent becomes dual-cure and has universal use with both self- and dual-cured resin cements and core build-up resins. CLEARFIL Universal Bond Quick is available in 5 mL bottles, packs of 3 bottles and as a standard kit containing 1 bottle of bonding agent, a 3 mL syringe of K-ETCHANT Syringe, 20 needle tips, a dispensing dish, 50 fine applicator brushes, and a light-blocking plate. CLEARFIL Universal Bond Quick is also available in unit doses, either 50 or 100 to a pack, together with a 3 mL syringe of K-ETCHANT Syringe, 20 needle tips and 50 or 100 fine applicator brushes, respectively.
UniqueFeatures• Contains silane
(bonds to lithium disilicate and porcelain).
• May be used as a self-cured adhesive with CLEARFIL DC Activator.hes, respectively.
Evaluation HighlightsCLEARFIL Universal Bond Quick was evaluated by 31 consult-ants for a total of 1,065 times.
• Easy to dispense and place.• Bottle and unit dose options.• Good viscosity - thinly coats the surface where applied.• Quick, simple and versatile.• Suitable for all bonding procedures.
RATING SYSTEM:ExcellentVery GoodGood
+ + + + + + + + ++ + +
CLEARFIL Universal Bond Quick
+ + + + + E D I T O R ’ S C H O I C E
98%overallrating
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Initial situation
Final resultShows excellent aesthetic properties of KATANA™ UTML and the perfect integration in harmony with pink tissues.
Aesthetic restoration of anterior teeth using KATANA™ UTML Full anatomical crowns, with vestibular stratification and BOPT*1.*1 Biologically Oriented Preparation Technique
New Paradigm in Aesthetic New Paradigm in Aesthetic Restoration
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Figure 1. The patient requested a solution for an aesthetic problem due to unnatural look of old restorations and black triangles coming from past history of periodontitis.The resulting retraction of the tissues had left the margins of the prosthesis clearly visible, and the loss of the papilla peaks, together with the numerous black spaces between the crowns, required a complex therapeutic approach.
Figure 4. We usually remove old prostheses before beginning a periodontal treatment, and make a first, provisional restoration to create an environment in which the soft tissues can heal. If we have to work beyond the cement enamel joint (CEJ), we prefer a vertical preparation for posts, and the purpose of the provisional restoration is to condition the marginal tissues using Dr. Loi’s BOPT .
Figure 3. From a functional point of view, we decided to reduce the deep frontal bite to restore a correct overjet-overbite ratio. This reduction was also important from an aesthetic point of view, as it allowed us to shape the various elements correctly.
Figure 2. The treatment plan for the periodontal problems con-sisted of a non-surgical approach, with scaling and root planing, and the replacement of the previously fixed prostheses to recondition the marginal tissues and facilitate the restoration of a new, aesthetically pleasing gingival architecture.
New Paradigm in Aesthetic
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Figure 8. One of the advantages of a vertical preparation is that taking the final impression is easy, because the absence of a horizontal finish line greatly simplifies the procedure.On the other hand, the BOPT also requires the taking of an impression of the sub-gingival portion of the preparation. The dental technician will have to decide marginal shape of restorations according to the position of the gingival line in consultation of the clinician, and based on the tests conducted with the provisional restoration.
Figure 5. For the BOPT, the vertical preparation of the post has a finish line that extends inside the gingival sulcus.The temporary conditioning of the tissues induced by the provisional prosthesis allows us to modify the level of the gingival parables to a certain extent.
Figure 6. The image on the left shows the clinical healing of the tissues one month after the initial periodontal treatment.The role of the provisional restoration, appropriately realigned, is clear. The conditioning of the tissue has been achieved by means of the provisional restoration, which has modified the level and shape of the marginal tissue. Once filled with correctly fitted crowns, the interproximal spaces will be further reduced after the definitive restoration.
Figure 7. The correct management of the provisional restoration is crucial for the healing of the tissues. The placement of a provisional restoration before the periodontal therapy has allowed us to create the right environment for complete healing. At the same time, the vertical preparation has allowed us to gradually condition the marginal gingival tissue by shortening or lengthening the provisional restoration as necessary.
New Paradigm in Aesthetic
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Figure 9. After the casting of the model, we prepared the gingival area to accommodate an ideal configuration of gingival parables.
Figure 12. The restoration was carried out with Katana™ UTML zirconia based on the new formulation of cubic zirconium oxide. This ultra tralucent material was chosen because we were working with light and non-discolored posts.
Figure 11. Once the wax model was complete, we extracted the element from the model and evaluated its protrusion. It was only after joining the gingival protrusion to the arbitrary margin of the preparation that we proceeded to a scan and milled the crowns.
Figure 10. After making a wax model, we assessed whether the height of the gingival zenith level could be further corrected. This photo shows that gingival level of 21 was not yet ideal, so we stretched it distally.
New Paradigm in Aesthetic
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Figure 16. Clinical image one year after cementation made with PANAVIA V5; this shows the good clinical condition of the marginal tissue, with no signs of inflammation or bleeding.The BOPT allowed us to optimise the level of the gingiva without resorting to periodontal surgery, while the shape of the new crowns has made it possible to close all interproximal spaces for an optimally aesthetic result.
Figure 14. The surface colours and the slight contrast created are highlighted in this black-and-white image taken with a blue filter.
Figure 15. In this translucent image, we can see the natural translucent effect of KATANA™ UTML and invisible fusion between abutments and crowns.
Figure 13. We finished the crowns on a positional impression to help to improve the gingival adaptation; we had some dispersion of the tissues in the first precision impression due to the use of retractors. We finished the crowns with CZR FC Paste Stain colours and glaze.
Born in Rome on 15th March 1957, Francesco Ferretti gets his degree as dental technician at the Institute “Edmondo de Amicis”, in Rome. In 1980, he starts working and, from 1987 to 1994, he cooperates with IVOCLAR VIVADENT giving consulting as ceramist. In 1992 he starts working exclusively with Prof. Mario MARTIGNONI.
- After one year cooperation with Prof. Martignoni, he starts working
with the ORAL DESIGN CENTER founded in Rome by Mr. Willi
Geller, and becomes a partner, improving prosthesis esthetics.
- Is registered outside the course of dentistry at the University of
Rome Tor Vergata
- In 2001, he founds ESTECH DENTAL STUDIOS, in cooperation
with Pentron for technical training and consulting.
- He has published articles and studies in Italian and American
magazines. He is interested in Metal Free techniques.
- Winner of the 2004 Polcan Aiop
- He is a member of: ANTLO LAZIO ( National Association of Lab
Owners) with the president of the Lazio region 2013-2014.
- National cultural manager ANTLO 2017-2020
- Teacher of prosthetics perfectioning at the University of Chieti
for the year 2002, he has been re-confirmed for the year 2003
,2004,2005to deal with Metal Free.
- Teacher of prosthetics perfectioning at the University of Naples
2006.
- He has participated as a speaker at numerous conferences
in Italy. ESCD member has participated as a speaker at ten in
Florence 2009 and Turin 2013.
FRANCESCOFERRETTI
New Paradigm in Aesthetic
28 BOND
Figure 18. Compared to the previous prostheses, the incisal reduction allowed not only for the optimisation of the functional phase by reducing the overbite, but also made it possible to achieve a more natural aesthetic, with the contour of the incisal margins following that of the lower lip.
Figure 17. The brightness of the restorations (thanks to the use of a particularly translucent zirconia) combined with the shape of the incisors, has greatly im-proved the aesthetic of the restoration, even though the condition initially appeared to be par-ticularly unfavourable.
Marco Nicastro takes a degree in “Odontoiatria e Protesi Dentaria (Dentistry and Dental Prosthesis) at the University of Rome “ La Sapienza in 1989. Since the beginning he is interested in prosthesis restoration dentistry and aesthetic problems.
- From 1990 to 1996 he attends Prof. Martignoni’s studio, where
he develops his prosthesis knowledge.
- From 1993 to 1998 he cooperates as lecturer with the Oral
Design Centre in Rome, directed by Mr. Ferretti and Mr. Felli,
giving lectures and courses about aesthetic restoration either
in Italy or in foreign countries. In the same period he enlarges
his experience in aesthetics, attending training courses at the
University of Geneva, in Switzerland.
- Since 1993 he has been cooperating with Mr. Francesco Ferretti
in the organization of Courses and Conferences, paying particular
attention to metal free methodology.
- Vice President of the European Society of Cosmetic Dentistry
(ESCD)
- Founding member and active member of Gimnasium
interdisciplinary CAD-CAM (GICC)
- Active member of the Italian Society of Conservative Dentistry
(SIDOC)
- Partner of the Italian Academy of Prosthetic Dentistry (AIOP)
- President of Like Mine Dental Education in Rome since 2001.
- He won, with Francesco Ferretti, the Polcan award of the Italian
Accademy of Prosthetic Dentistry in 2004.
DR. MARCO NICASTRO
New Paradigm in Aesthetic
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Polymaker’s material scientists worked closely with the Kuraray team in the development of PolySmooth™. “Mowital® is the ideal basis for our formulation”, says Dr. Xiaofan Luo, the Co-Founder and President of Polymaker: “We tested many different PVB raw materials and Mowital® was clearly the best in terms of quality and consistency. With this product we were able to significantly improve the surface properties of 3D printed parts.”
“The use of Mowital® in 3D printing makes it possible to print objects with high surface quality at home too“, explains Jörg Bruss, Director, Global Business - Technical Resin at Kuraray. “We are looking forward to continuing to work with Polymaker. Together, we will expand the market share of PVB in 3D printing.”
Hattersheim, July 5th, 2017. Based on its co-operation with Kuraray, Polymaker is now launching PolySmooth™, the first PVB-based 3D printing filament. This filament, whose main component is Kuraray’s polyvinyl butyral resin Mowital®, marks a breakthrough in filament-based 3D printing. Due to its excellent ‘smoothability’, objects printed in PolySmooth™ and post processed with Polymaker’s Micro-Droplet Polishing™ technology show such smooth and bright surfaces that they can compete with industrially-manufactured injection molded parts.
Images Source: Polymaker
3D printing filament based on Mowital®Co-operation of Polymaker and Kuraray:
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A BRIGHT RESULTWhat really makes this launch a landmark in 3D printing is the unique ‘smoothability’ of PolySmooth™. When a 3D model printed in PolySmooth™ is placed inside the Polysher™, the dedicated post-processing machine for PolySmooth™, an ultrasonic nebulizer creates a very fine mist of Isopropanol (IPA) that engulfs the model. Due to the filaments excellent solubility in alcohols, the IPA mist inside the Polysher™ rapidly melts the surface of the PolySmooth™ model. This process fuses the layers together and levels out any unevenness on the surface, turning a rough layered matte surface into a watertight glossy object – a true highlight in filament based 3D printing. This means that users will be able to produce 3D objects at home to an industry standard.
OUTSTANDING MATERIAL PROPERTIES In comparison to the current standard materials for filament-based 3D printing, PolySmooth™ displays outstanding printability, excellent mechanical properties and has a very minimal odor during the printing process, making it suitable for both industrial as well as office/studio environments.
Mowital® are specialty polymers with specific technical properties. The polymers can be customized for a wide range of applications. Polyvinyl butyral’s properties such as mechanical stability, resistance to light and excellent thermoplastic processibility contribute to the characteristics of PolySmooth™, whose great dimensional stability with minimal warping which makes it ideal for large prints.
3D printing filament based on Mowital®
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APPLY ANDPROCEED
CLEARFIL™ Universal Bond Quick works instantly. Just apply, dry and light cure. That’s all. It requires only one layer, one stroke application and penetrates immediate. All direct restorations, core build-ups and even indirect restorations and repairs, are reliably bonded. Simply use it the way you want. Total-etch, selective-etch or self-etch. You decide.
Discover more about CLEARFIL™ Universal Bond Quick on KurarayNoritake.eu/CUBQ
CLEARFIL™ Universal Bond Quick
APPLY ANDPROCEED
Kuraray Europe GmbH, Bu Medical Products, Philipp-Reis-Str. 4, 65795 Hattersheim am Main, Deutschland, www.kuraraynoritake.eu
