INBDE Periodontics

Question 1

Periodontal probing depth is measured from the:

Accepted Answer

Gingival margin to the base of the pocket

Answer

Probing depth is the distance from the free gingival margin to the base of the periodontal pocket or sulcus.

Question 2

Which bacteria is most strongly associated with adult chronic periodontitis?

Accepted Answer

Porphyromonas gingivalis

Answer

Porphyromonas gingivalis is a keystone pathogen in chronic periodontitis, producing virulence factors including gingipains that disrupt the host immune response.

Question 3

The biologic width refers to the combined measurement of:

Accepted Answer

Junctional epithelium and connective tissue attachment above the alveolar crest

Answer

The biologic width (~2.04 mm) consists of the junctional epithelium (~0.97 mm) and supracrestal connective tissue attachment (~1.07 mm) above the alveolar bone crest.

Question 4

Which furcation classification indicates that the furcation can be completely probed through from one side to the other?

Accepted Answer

Class III

Answer

Class III (through-and-through) furcation involvement means the probe passes completely through the furcation from the buccal to lingual/palatal surface.

Question 5

Aggressive periodontitis in young patients is most commonly associated with which organism?

Accepted Answer

Aggregatibacter actinomycetemcomitans

Answer

Aggregatibacter actinomycetemcomitans (Aa) is strongly associated with localized aggressive periodontitis, particularly in adolescents and young adults.

INBDE - Integrated National Board Dental Exam Practice Test

INBDE - Integrated National Board Dental Exam Practice Test

INBDE Periodontics