AGD Periodontics and Gum Disease 3

Question 1

A free gingival graft is harvested primarily from which intraoral donor site?

Accepted Answer

Hard palate

Answer

The hard palate provides keratinized epithelium and connective tissue ideal for free gingival grafts to increase the zone of attached gingiva.

Question 2

Which radiographic bone loss pattern is most characteristic of localized aggressive periodontitis affecting first molars?

Accepted Answer

Arc-shaped (arcuate) vertical bone loss

Answer

Localized aggressive periodontitis classically shows an arc-shaped vertical bone loss pattern on the mesial and distal aspects of first molars.

Question 3

The biologic width is defined as the combined measurement of:

Accepted Answer

Junctional epithelium and supracrestal connective tissue attachment

Answer

Biologic width consists of junctional epithelium (~0.97 mm) plus supracrestal connective tissue (~1.07 mm), totaling approximately 2 mm.

Question 4

Which antibiotic regimen is specifically recommended as an adjunct for treating aggressive periodontitis caused by A. actinomycetemcomitans?

Accepted Answer

Amoxicillin plus metronidazole

Answer

The combination of amoxicillin and metronidazole has strong evidence as an adjunct to scaling and root planing for aggressive periodontitis, particularly against A. actinomycetemcomitans.

Question 5

Guided tissue regeneration (GTR) uses a membrane to:

Accepted Answer

Exclude epithelium and gingival connective tissue from the healing wound

Answer

GTR membranes act as physical barriers that exclude fast-growing epithelial and connective tissue cells, allowing slower-growing PDL and bone cells to repopulate the defect.

(AGD) Academy of General Dentistry Certification Practice Test

(AGD) Academy of General Dentistry Certification Practice Test

AGD Periodontics and Gum Disease 3