DDS Periodontics 3

Question 1

Porphyromonas gingivalis is a key periodontal pathogen primarily because it:

Accepted Answer

Produces virulence factors including gingipains and lipopolysaccharides

Answer

P. gingivalis is a Gram-negative anaerobe that secretes gingipain proteases and LPS, enabling it to evade host defenses and drive connective tissue destruction.

Question 2

Peri-implantitis is best described as:

Accepted Answer

An inflammatory condition causing progressive bone loss around a dental implant

Answer

Peri-implantitis involves plaque-induced inflammatory changes in the peri-implant mucosa accompanied by progressive loss of supporting bone beyond initial remodeling.

Question 3

Acute necrotizing ulcerative gingivitis (ANUG) is characterized by all of the following EXCEPT:

Accepted Answer

Deep periodontal pocket formation

Answer

ANUG typically does NOT produce pockets because tissue destruction occurs coronally without apical migration of the junctional epithelium.

Question 4

Miller's Class I gingival recession is defined as:

Accepted Answer

Recession not extending to or beyond the mucogingival junction with no interproximal bone or soft tissue loss

Answer

Miller Class I recession does not reach the mucogingival junction and there is no interproximal bone or soft tissue loss; complete root coverage is predictably achievable.

Question 5

What is considered the primary etiologic factor initiating periodontal disease?

Accepted Answer

Bacterial dental plaque biofilm

Answer

Bacterial plaque biofilm is the essential primary cause of periodontal disease; it initiates the host inflammatory response that ultimately destroys periodontal tissues.

DDS - Doctor of Dental Surgery Practice Test

DDS - Doctor of Dental Surgery Practice Test

DDS Periodontics 3