FREE NBDE Periodontal Disease Management Questions and Answers

Question 1

Which of the following describes the primary goal of non-surgical periodontal therapy?

Accepted Answer

Elimination of bacterial plaque and calculus from root surfaces.

Answer

Regeneration of lost periodontal tissues, including bone and cementum.

Answer

Surgical removal of diseased gingival tissue.

Answer

Correction of occlusal discrepancies and traumatic occlusion.

Question 2

A 45-year-old patient presents with generalized moderate periodontitis. After initial non-surgical therapy, re-evaluation reveals persistent bleeding on probing and probing depths of 5-6mm in several areas. The patient maintains excellent oral hygiene. Which of the following would be the most appropriate next step in their periodontal management?

Accepted Answer

Referral for periodontal surgical intervention.

Answer

Prescription of systemic antibiotics alone.

Answer

Initiation of daily chlorhexidine gluconate rinses indefinitely.

Answer

Immediate extraction of affected teeth.

Question 3

Which of the following factors is considered the MOST significant modifiable risk factor for the progression of periodontal disease?

Accepted Answer

Smoking.

Answer

Genetic predisposition.

Answer

Age.

Answer

Gender.

Question 4

During a periodontal re-evaluation appointment, a patient who completed scaling and root planing 6 weeks prior exhibits a significant reduction in probing depths, decreased bleeding on probing, and improved gingival health. Which of the following best describes the most likely mechanism for the clinical improvement observed?

Accepted Answer

Formation of a long junctional epithelium.

Answer

Stimulation of new bone formation through mechanical debridement.

Answer

Regeneration of periodontal ligament fibers.

Answer

Increased gingival keratinization.

Question 5

A patient with generalized severe chronic periodontitis is being considered for dental implant placement after extractions. Which of the following conditions is a critical consideration for successful implant osseointegration and long-term stability in this patient?

Accepted Answer

Presence of residual periodontal pathogens post-treatment.

Answer

Patient's age over 65 years.

Answer

History of controlled hypertension.

Answer

Patient's preference for fixed prostheses.

Question 6

Which of the following is an expected clinical outcome following successful non-surgical periodontal therapy?

Accepted Answer

Reduced gingival inflammation and probing depths.

Answer

Significant increase in gingival recession.

Answer

Complete regeneration of alveolar bone.

Answer

Formation of a new cementum layer on exposed roots.