Chapter 25

Question 2

Radiographs add each of the following to an assessment of periodontal disease except one. Which one is the exception?

Answer 2

C) The length of a clinical crown

Question 3

Which of the following statements is false?

Answer 3

A) Radiographs assist with determining active versus arrested disease.

Question 4

Which of the following is not a limitation of radiographs in the evaluation of periodontal disease?

Answer 4

A) They record an exaggerated assessment of actual clinical involvement of the disease.

Question 5

Radiographs may assist in making the diagnosis of gingivitis.

Answer 5

FALSE

Question 6

Radiographs may be used to evaluate crestal bone and interdental septal changes.

Answer 6

TRUE

Question 7

In horizontal bone loss, the buccal and lingual plates and interdental bone have all been resorbed to relatively the same degree.

Answer 7

TRUE

Question 8

Radiographs may assist in determining the distribution of periodontitis.

Answer 8

TRUE

Question 9

Radiographs can reveal furcation involvement in the posterior teeth.

Answer 9

TRUE

Question 10

Occlusal trauma can cause periodontal disease.

Answer 10

FALSE

Question 11

Radiographs can serve as a baseline and as a means for determining treatment success or failure.

Answer 11

TRUE

Question 12

Radiographs are two-dimensional images of three-dimensional objects.

Answer 12

TRUE

Question 13

Changes in soft tissue can be demonstrated radiographically.

Answer 13

FALSE

Question 14

Radiographs can distinguish treated versus untreated disease.

Answer 14

FALSE

Question 15

Periodontal diseases affect both soft tissues (gingiva) and bone around the teeth.

Answer 15

TRUE

Question 16

Radiographs document the amount of bone remaining rather than the amount lost.

Answer 16

TRUE

Question 17

Vertical bone loss is the same diagnosis as angular bone loss.

Answer 17

TRUE

Question 18

Localized bone loss is the same diagnosis as generalized bone loss.

Answer 18

FALSE

Question 19

An amalgam overhang is a local contributing factor for periodontal disease.

Answer 19

TRUE

Question 20

To image periodontal conditions, horizontal bitewing radiographs are preferred over vertical bitewing radiographs.

Answer 20

FALSE

Question 21

Some practitioners prefer to expose radiographs used for the purpose of recording information regarding the periodontium at a lower kVp setting because of the high contrast it will produce.

Answer 21

FALSE

Question 22

When taking multiple radiographs of the same region, varying the horizontal angulation slightly will compromise diagnosis.

Answer 22

FALSE

Question 23

Evidence of bone loss up to 15 percent and crestal bone density that appears as a fuzzy cupping-out of the alveolar crest are radiographic signs of mild periodontitis.

Answer 23

TRUE

Question 24

To be useful in the evaluation of periodontal disease, periapicals should be exposed using the paralleling technique.

Answer 24

TRUE

Question 25

Name three local contributing factors for the development of periodontal diseases.

Answer 25

Amalgam overhangs, poorly contoured crown margins, and calculus.

Question 26

Can radiographs reveal the effects of traumatic occlusion on the periodontium?

Answer 26

Yes.

Question 27

Can gingivitis be detected radiographically?

Answer 27

No.

Question 28

Can radiographs be used to differentiate treated versus untreated disease?

Answer 28

No.

Question 29

How does the two-dimensional nature of radiographs limit their utility as a diagnostic aid?

Answer 29

Radiographs document the height and width of structures but do not demonstrate the third dimension of depth.

Question 30

Which periodontal disease case type demonstrates bone loss greater than 30 percent?

Answer 30

Severe periodontitis.

Question 31

What is the radiographic appearance of the lamina dura when gingivitis is present?

Answer 31

The same as a healthy status.

Question 32

Describe the earliest radiographic evidence of periodontal disease.

Answer 32

A fuzzy, radiolucent cupping-out of the alveolar crest.

Question 33

What is triangulation?

Answer 33

A widening of the periodontal ligament space.

Question 34

What is the earliest type of periodontal disease in which furcation involvement is seen radiographically?

Answer 34

Moderate periodontitis.