Radiographic Flashcards
Radiographs are NOT
Diagnostic of periodontal disease
Correlate with clinical attachment level
<20% bone loss
Slight
21-49% bone loss
Moderate
3-4 mm
Assessing Bone Loss
CEJ->Crest -2mm
____________________
CEJ->Apex-2mm
The of the crest lies at
A level approximately 2 mm below the level of the CEJs of adjacent teeth
Can radiographic integrity of crystal lamina dura be used as an indicator
Cannot be used as indicator of periodontal treatment
Pattern of Bone Loss
Horizontal bone loss
Vertical (angular) bone loss
Hemiseptal defect
A vertical defect in the presence of adjacent roots; thus half of a septum remains on one tooth, AKA one walled defect
Osseous Crater
A cup or bowl shaped defect in the interalveolar bone
Two walled defect
Moat-like Defect
An intrabony resorptive lesion invoking or or more surfaces of supporting bone
How doe furcation loss show up
As a radiolucency
The PDL appears as
The PDL space of .4-1.5 mm on radiographs
The PDL tends to be
Wider at the apex and alveolar crest and narrow in the mid root areas
Vessels within interdental bone appear as
Radiolucent lines boarded by thin radiopaque lines
Mandibular tori
A bone exostosis on the lingual aspect of the mandible generally in the premolar region commonly bilateral
