Deck 25: The Use of Radiographs in the Evaluation of Periodontal Diseases

Question 1

Which of the following statements is FALSE?

A) Radiographs reveal the pattern of bone loss.
B) Radiographs indicate the amount of bone loss.
C) Radiographs cannot detect early signs of periodontal diseases.
D) Radiographs reveal crestal bone irregularities.

Answer 1

Radiographs indicate the amount of bone loss.

Question 2

Each of the following periodontal case types will reveal bony changes radiographically EXCEPT one. Which one is the EXCEPTION?

A) I
B) II
C) III
D) IV

Answer 2

I

Question 3

Which of the following is considered a local contributing factor for periodontal disease?

A) Calculus
B) Amalgam overhang
C) A poorly contoured crown margin
D) All of the above

Answer 3

All of the above

Question 4

Widening of the periodontal ligament space at the crest of the interproximal bone is called:

A) triangulation.
B) furcation involvement.
C) horizontal bone loss.
D) a local contributing factor.

Question 5

Each of the following is a limitation of radiographs in the assessment of periodontal disease EXCEPT one. Which one is the EXCEPTION?

A) Two-dimensional images do not reveal infrabony changes.
B) The destruction of periodontium is not as severe clinically.
C) Changes in soft tissues will not be imaged.
D) Active versus inactive disease is not distinguished.

Question 6

Which of the following describes the radiographic appearance of calculus?

A) A pointed projection extending from the side of the tooth
B) Ring-like and encircling the neck of the tooth
C) A fuzzy speck barely visible against the side of the tooth
D) All of the above

Question 7

Which of the following local contributing factors for periodontal disease will not be detected by radiographs?

A) Widening of the PDL
B) Recession
C) Amalgam overhang
D) Calculus

Question 8

Periodontal bone changes that may be recorded by radiographs include each of the following EXCEPT one. Which one is the EXCEPTION?

A) Amount of bone loss
B) Distribution of bone loss
C) Severity of bone loss
D) Pattern of bone loss

Question 9

Which of the following statements is FALSE?

A) Radiographs assist with determining active versus arrested disease.
B) Radiographs provide information on the tooth root-to-crown ratio.
C) Radiographs provide documentation of the progression of periodontal disease.
D) Radiographs can assist the practitioner with predicting outcomes of treatment.

Question 10

The effects of occlusal trauma may be evident on a radiograph as

A) a widening of the PDL space.
B) an excessive buildup of calculus.
C) dilacerations of the teeth roots.
D) furcation involvement.

Question 11

Which of the following statements is correct?

A) Localized bone loss occurs throughout both arches simultaneously.
B) Horizontal bone loss is also known as angular bone loss.
C) Horizontal bone loss occurs in a plane perpendicular to the CEJ of adjacent teeth.
D) Vertical bone loss is also known as angular bone loss.

Question 12

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

A) They record an exaggerated assessment of actual clinical involvement of the disease.
B) They provide a two-dimensional representation of three-dimensional structures.
C) Changes in soft tissue are not recorded.
D) They cannot distinguish between treated versus untreated disease.

Question 13

To accurately record the alveolar crestal bone, which of the following is necessary?

A) Precise parallelism with vertical and horizontal angulations
B) Placement of the image receptor parallel to the long axis of the tooth
C) Central rays of the x-ray beam directed perpendicular to the tooth and image receptor
D) All of the above

Question 14

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

A) Root morphology and lengths
B) The amount of supporting bone between the teeth
C) The length of a clinical crown
D) The presence of dilacerate roots

Question 15

Bone loss between the roots of molar teeth is called:

A) triangulation.
B) furcation involvement.
C) horizontal bone loss.
D) a local contributing factor.

Question 16

Each of the following is a use of radiographs in the assessment of periodontal disease prognosis EXCEPT one. Which one is the EXCEPTION?

A) Evaluating root-to-crown ratio
B) Detecting furcation involvement
C) Determining active versus inactive disease
D) Revealing root shape and length

Question 17

Which of the following would be the least valuable radiographic assessment for the patient with periodontal disease?

A) A vertical bitewing series
B) Periapical radiographs exposed using the paralleling technique
C) A horizontal bitewing series
D) Periapical radiographs exposed using the bisecting technique

Question 18

Radiolucencies appearing in the furcations of multirooted teeth with less than 50 percent bone loss indicate which periodontal case type?

A) I
B) II
C) III
D) IV

Question 19

Each of the following can be determined from radiographs EXCEPT one. Which one is the EXCEPTION?

A) Total loss of periodontal attachment
B) Amount of bone remaining rather than bone loss
C) Crestal alveolar irregularities
D) Interdental septal changes

Question 20

Radiographs may provide information regarding which of the following periodontal conditions?

A) Gingival inflammation
B) Local contributing factors
C) The presence of active disease
D) The depth of the pockets

Question 21

Changes in soft tissue can be demonstrated radiographically.

Question 22

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

Question 23

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

Question 24

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

Question 25

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

Question 26

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

Question 27

Radiographs may assist in determining the distribution of periodontitis.

Question 28

Radiographs may assist in making the diagnosis of gingivitis.

Question 29

Occlusal trauma can cause periodontal disease.

Question 30

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

Question 31

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.

Question 32

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

Question 33

Radiographs can reveal furcation involvement in the posterior teeth.

Question 34

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

Question 35

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

Question 36

Evidence of bone loss up to 30 percent and crestal bone density that appears as a fuzzy cupping-out of the alveolar crest are radiographic signs of case type II periodontal disease.

Question 37

Radiographs can distinguish treated versus untreated disease.

Question 38

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

Question 39

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

Question 40

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

Question 41

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

Question 42

Which periodontal disease case type demonstrates early bone loss, up to 30 percent?

Question 43

Describe the earliest radiographic evidence of periodontal disease.

Question 44

Can gingivitis be detected radiographically?

Question 45

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

Question 46

What is triangulation?

Question 47

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

Question 48

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

Question 49

Can radiographs be used to differentiate treated versus untreated disease?

Question 50

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