Question 1

The normal periodontal ligament space appears as a ______________ line.

Accepted Answer

A) thin radiopaque 
B) thin radiolucent 
C) thick radiopaque 
D) thick radiolucent B

Question 2

Which of the following should you use to determine the extent of your patient's periodontal disease?

Accepted Answer

A) Pocket depth 
B) Recession 
C) Amount of inflammation 
D) Clinical attachment loss D

Question 3

You suspect your patient has periodontal disease in the molar regions.Which of the following dental images should you take?

Accepted Answer

A) Horizontal bite-wing 
B) Vertical bite-wing 
C) Panoramic 
D) Periapical D

Question 4

ADA Case Type I is

Accepted Answer

A) gingivitis. 
B) mild or slight periodontitis. 
C) moderate periodontitis. 
D) advanced or severe periodontitis.

Question 5

Identify the radiopaque area the arrow is pointing to on your patient's dental image.

Accepted Answer

A) Calculus 
B) Caries 
C) Cemento-enamel junction 
D) Cementum

Question 6

In health,the lamina dura around the roots of the teeth appears as a(n)_________ line.

Accepted Answer

A) dense radiolucent 
B) dense radiopaque 
C) intermittent radiolucent 
D) intermittent radiopaque

Question 7

Dental images permit the evaluation of ______ in the detection of periodontal disease.

Accepted Answer

A) pocket depth 
B) soft tissue 
C) inflammation 
D) bone

Question 8

The periodontal ligament space is located between the root of the tooth and the

Accepted Answer

A) crest of alveolar bone. 
B) lamina dura. 
C) cementum. 
D) spongy bone.

Question 9

Your patient is viewing her bite-wing images and has noticed the small radiopaque pieces on the interproximal surfaces below the contacts of some of her teeth.What is she looking at?

Accepted Answer

A) Crestal bone 
B) Cemento-enamel junction 
C) Composite restorations 
D) Calculus

Question 10

A patient with localized bone loss will exhibit bone loss in less than ______ of the areas.

Accepted Answer

A) 10% 
B) 20% 
C) 30% 
D) 50%

Question 11

Your patient has been diagnosed as having a periodontal classification of ADA case type I.How far below the cement-enamel junction would you expect to see the crestal bone on the dental images?

Accepted Answer

A) 0.5 to 1.0 mm 
B) 1.0 to 1.5 mm 
C) 1.5 to 2.0 mm 
D) 2.0 to 2.5 mm

Question 12

The _________________ of adjacent teeth can be used as a plane of reference in determining the pattern of bone loss present.

Accepted Answer

A) marginal ridge height 
B) cemento-enamel junctions (CEJs) 
C) pulp chambers 
D) cementum thickness

Question 13

Severe bone loss is defined as a loss of __________.

Accepted Answer

A) 1 to 2 mm 
B) 2 to 3 mm 
C) 3 to 4 mm 
D) 5 mm or greater

Exam 34: Interpretation of Periodontal Disease