ABP Surgical Procedures 3

Question 1

Which instrument is specifically designed to remove calculus from furcation areas during periodontal surgery?

Accepted Answer

Younger-Good 7/8 curette

Answer

The Younger-Good 7/8 curette has an angulated shank that allows access to furcation areas and interproximal surfaces during surgical debridement.

Question 2

In guided bone regeneration (GBR), the primary function of the membrane is to:

Accepted Answer

Exclude epithelial and connective tissue cells from the regenerating space

Answer

GBR membranes act as barriers to prevent fast-proliferating epithelial and connective tissue cells from occupying the space needed for slower bone-forming cells.

Question 3

After a free gingival graft, the graft undergoes 'plasmatic circulation' during approximately which time period?

Accepted Answer

24–72 hours

Answer

During the first 24–72 hours, the graft survives via plasmatic diffusion from the recipient bed before revascularization (inosculaton) occurs.

Question 4

The 'trap door' or 'tunnel' technique for subepithelial connective tissue grafting is advantageous primarily because:

Accepted Answer

It avoids a releasing incision, preserving papillary blood supply

Answer

The tunnel technique avoids vertical releasing incisions, maintaining intact papillary blood supply and reducing scar formation while covering multiple recession defects.

Question 5

Semilunar coronally positioned flap is best indicated for which clinical situation?

Accepted Answer

Miller Class I or II recession with adequate keratinized tissue width

Answer

The semilunar technique is appropriate for shallow Miller Class I or II defects where adequate keratinized tissue exists, as it does not increase the zone of keratinized tissue.

(ABP) American Board of Periodontology Practice Test

(ABP) American Board of Periodontology Practice Test

ABP Surgical Procedures 3