PRINCIPLES OF RADIOGRAPHIC INTERPRETATIONDR SAMY I ALAGHAA
PROFESSOR&CONSULTANT OF RADIOLOGY
GUIDELINES FOR ORDERING DENTAL RADIOGRAPHSMAKE RADIOGRAPHS ONLY
AFTER A CLINICAL EXAMINATION.ORDER ONLY RADIOGRAPHS THAT DIRECTLY
BENEFIT THE PATIENT IN DIAGNOSIS &TREATMENT.USE THE LEAST
AMOUNT OF RADIATION EXPOSURE .
CLINICAL SITUATIONS NEED RADIOGRAPHIC EXAMINATIONS1-DENTAL
CARIES2-PERIODENTAL DISEASES3-DENTAL
ANOMALIES4-GROWTH&DEVELOPMEN AND DENTAL MALOCCLUSION5-OCCULT
DISEASES6-TMJ DISORDERS7-IMPLANTS8-PARANASAL SINUSES9-TRAUMA
RADIOGRAPHIC INTERPRETATIONCLINICAL EXAMINATIONQUALITY OF
DIAGNOSTIC IMAGENUMBER &TYPE OF AVAILABLE IMAGESVIEWING
CONDITIONS
IMAGE ANALYSISSystematic radiographic
examination>>>identify normal anatomy&examinte the
entire filmInraoral images>>>examine the periapical films
before the bitewing films starting in the RT maxilla to its LT then
drop down in the LT mandible to its RT Extraoral images>>
panoramic films,cephalometric views&TMJ views
ANALYSIS OF INTRAOSSEOUS LESIONS
STEP 1:LOCALIZE THE ABNORMALITYLOCALIZED OR GENERALIZEDPOSITION
IN THE JAWSSINGLE OR MULTIFOCALSIZE
STEP 2:ASSESS THE PERIPHERY &SHAPEIs the periphery of lesion
well defined or ill defined?SHAPE OF LESION>>>Circular or
fluid filled >>>Scalloped in cystic or cystlike
lesions
STEP3:ANALYZE THE INTERNAL STRUCTUREAir,Fat,or GasFluidSoft
tissueBone marrowTrabecular boneCortical bone
&dentineEnamelMetal
STEP4:ANALYSE THE EFFECTS OF THE LESION ON SURROUNDING
STUCTURESTEETH,LAMINA DURA,PERIODENTAL MEMBRANE SPACEINFERIOR
ALVEOLAR CANAL&MENTAL FORAMENMAXILLARY ANTRUMSURROUNDING BONE
DENSITY&TRABECULAR PATTERNOUTER CORTICAL BONE&PEIOSTEAL
REACTION
