radiographic interpretation

Seite 1

POCKETS

PATHOLOGIVALLY DEEPENED SULCUS

BASE OF POCKET =JUNCTIONAL EPITHELIUM

PSEUDOPOCKET

PERIODONTAL POCKET

SUPRABONEY= BOTTOM OF POCKET IS CORONAL TO ALVEOLAR CREST

INFRABONEY= BOTTOM OF POCKET APICAL TO ALVEOLAR CREST

1 WALL DEFECT= 1 BONEY WALL REMAINING = WORST TYPE

2 WALL DEFECT = 2 BONEY WALLS REMAINING

3 WALL DEFECT = 3 BONEY WALLS REMAINING = BEST PROGNOSIS

OSSEUOUS CRATER= BETWEEN TWO ADJACENT TEETH

CONCAVITIES IN CREST OF INTERDENTAL BONE

CONFINDED TO FACIAL AND LINGUAL

1/3 OF ALL DEFECTS

2/3 OF ALL MANDIBULAR DEFECTS

MORE COMMON IN POSTERIOR

FENESTRATION = WINDOW LIKE DEFECT IN CORTICAL BONE, NOT INCLUDING BONE MARGIN

DEHISCENCE= CLEFT LIKE DEFECT IN CORTICAL BONE INCLUDING BONE MARGIN

BONE LOSS

CREST OF ALVEOLAR BONE IS 2MM APICAL TO CEJ

HORIZONTAL

MOST COMMON

EVEN OVERALL REDUCTION IN BONE HEIGHT

ASSOCIATED WITH SUPRABONEY POCKETS (POCKET CORONAL TO ALVEOLAR CREST)

PARRALLET TO CEJ

1ST GINGIVAL FIBERS then ALVEOLAR BONE then PDL FIBERS

VERTICAL

LESS COMMON

LOSS AT AN ACUTE ANGLE O TOOTH

TRENCH LIKE DEFECT ALONG THE ROOT

ASSOCIATED WITH INFRABONEY POCKET (POCKET APICAL TO ALVEOLAR CREST)

1ST GINGIVAL CT then PDL FIBERS then ALVEOLAR BONE

SEVERITY OF BONE LOSS

MILD, MODERATE, SEVERE

CEJ TO CREST/CEJ TO APEX= PERCENTAGE OF LOSS

SLIGHT =

GREATER THAN OR EQUAL TO 30%

3-4MM APICAL TO CEJ

MODERATE=

EQUAL TO 30-50%

4-5 MM APCIAL TO CEJ

SEVERE=

> 50%

>5MM APICAL TO CEJ

DISTRIBUTUION OF BONE LOSS

GENERALIZED= INVOLVING > 30% OF ERUPTED TEETH

LOCALIZED= INVOLVING <30% OR FEWER TEETH

RADIOGRAPH LIMITATIONS

CANNOT SEE=

PRESENSE OR ABSENSE OF POCKETS

EARLY BONE LOSS

MORPHOLOGY OF BONE DESTRUCTION

TOOTH MOBILITY

EARLY FUCAL INVOLVEMENT

BUCCAL AND LINGULA CORTICAL PLATES

LEVEL OF EPITHELIAL ATTACHEMENT

RADIOGRAPH BENEFITS

CAN SEE=

ROOT LENGTH/ MORPHOLOGY

CLINICAL CROWN TO CLINICAL ROOT RATIO

BONE LOSS PATTERNS AND SEVERITY

LCOCATION OF NORMAL TOOTH STRUCTURES

FUCAL INVOLVEMENT

CALCULUS

ROOT RESPORTION

CARIES

SUPERNUMERARY TEETH

IMPACTIONS

INTERPRETATION

PRESENCE OF INTACT INTERDENTAL SEPTUM REPRESENTS A STABLE SITE (CRESTAL BONE)

TRIANGULATION= WIDENING OF PDL SPACE CAUSED BY RESOPTION OF BONE

VISIBLE NUTRIENT CANALS = REDUCTION OF MINERALIZED TISSUE ADJACENT TO BLOOD VESSELS WITHIN ALVEOLAR BONE

WIDENED PDL SPACE= EXCESSIVE OCCLUSAL FORCES AND PDL COMPENSATES BY BECOMING THICKER= MOBILITY

PATHOLOGY

PERIAPICAL ABCESS= RADIOLUCENCY AT APEX OF TOOTH

PERIODONTAL ABCESS= RADIOLUCENCY AT SIDE OF TOOTH

PERICORNTITS= INFLAMMATION OF TISSUE AROUND A PARTICALLY ERUPTED TOOTH, USUALLY 3RD MOLARS