Radiographic Examination

Question 1

T/F: Radiographs are diagnostic of periodontal disease.

Answer 1

False

Question 2

T/F: Radiographs can correlate with clinical attachment levels.

Answer 2

True

Question 3

How is bone loss calculated through radiographs?

Answer 3

Measure CEJ-Crest and subtract by two.

Measure CEJ-apex and subtract by two .

Divide first measurement by the second measurement to get percentage of bone loss

Question 4

The normal height of the alveolar crest lies at a level approximately ______ below the level of the CEJs of adjacent teeth.

Answer 4

2 mm

Question 5

The normal crest follows the _____.

Answer 5

CEJ

Question 6

T/F: It is appropriate to use the integrity of the crystal lamina dura as an indicator for periodontal treatment.

Answer 6

FALSE

Question 7

T/F: Furcation bone loss will show up as a radioilucency.

Answer 7

True

Question 8

What can a thickened radicular lamina dura and widened PDL space tell you?

Answer 8

There has been occlusal trauma

Question 9

Where might the mental foramen be seen?

Answer 9

Distal of 1st premolar to mesial of 1st molar

Question 10

If the roots are less than _____ apart periodontal bone loss will effect the entire interproximal.

Answer 10

2.5 mm