DDS Periodontics 2

Question 1

Scaling and root planing (SRP) is considered the gold standard of which type of periodontal therapy?

Accepted Answer

Non-surgical therapy

Answer

SRP is the cornerstone of non-surgical periodontal therapy, mechanically removing calculus and biofilm from root surfaces to reduce pathogenic bacterial load.

Question 2

The Modified Widman Flap procedure was primarily designed to:

Accepted Answer

Provide access for root debridement while preserving maximum tissue

Answer

The Modified Widman Flap (Ramfjord and Nissle, 1974) prioritizes access for thorough root debridement with minimal surgical trauma and tissue sacrifice.

Question 3

Which systemic disease has the strongest bidirectional relationship with periodontitis?

Accepted Answer

Diabetes mellitus

Answer

Poorly controlled diabetes impairs neutrophil function and collagen metabolism, worsening periodontitis; conversely, periodontal infection raises blood glucose levels.

Question 4

An autogenous bone graft used in periodontal surgery is defined as bone harvested from:

Accepted Answer

The patient's own body

Answer

Autogenous grafts are taken from the patient (e.g., maxillary tuberosity, chin, or ramus) and are considered the gold standard because they are osteogenic, osteoinductive, and osteoconductive.

Question 5

Guided tissue regeneration (GTR) barrier membranes function by:

Accepted Answer

Excluding epithelial and gingival connective tissue cells from the healing wound

Answer

GTR membranes selectively block fast-migrating epithelial and connective tissue cells, allowing slower-growing PDL and bone cells to repopulate the defect for true regeneration.

DDS - Doctor of Dental Surgery Practice Test

DDS - Doctor of Dental Surgery Practice Test

DDS Periodontics 2