Lecture 4- Radiographic examination Flashcards
radiographs are not … of periodontal disease
diagnostic
if you have less then or equal to 20% bone loss than severity is … and the CAL that correlates is…
mild
1-2mm
if you have between 21-49% bone loss then severity is … and the CAL that correlates is…
moderate
3-4mm
if you have more than or equal to 50% bone loss than severity is … and the CAL that correlates is…
severe
greater than or equal to 5mm
The calculation for assessing % if bone loss is ….
CEJ to crest - 2mm
divided by
CEJ to apex - 2mm
the height of the crest lies at a level approximately …. below the level of the CEJs of the adjacent teeth
2mm
the integrity of the …. evaluated on either a PA or bitewing does not seem to be related to the presence or absence of visual inflammation, BOP, periodontal pocketing, or loss of connective tissue attachment in the corresponding interdental area
crestal lamina dura
T/F using integrity of crestal lamina dura as an indicator for the need of periodontal treatment is appropriate
false
Do craters show up on PA or bitewing?
PA
A crater is a … walled defect
2 (buccal and lingual still present)
a … defect is an intrabony resorptive lesion involving one or more surfaces of supporting bone
moat like
the PDL space is usually … mm on radiographs. It tends to be wider at the … and … and narrow in the … areas
0.4-1.5 mm
apex and alv. crest
mid-root areas
a thickened … and/or a widened … on a radiograph suggest occlusal trauma but the should have …. too
radicular lamina dura
PDL space
progressive mobility
Are mandibular tori radiopaque or radiolucent and are they usually unilateral or bilateral
radiopaque and bilateral
where will you see the mental foramen on xrays
distal to 1st PM and can be as far as mesial of 1st molar
