ABP Implant Dentistry 2

Question 1

Which implant surface modification technique uses high-energy particle bombardment to create micro-roughness and improve osseointegration?

Accepted Answer

Sandblasting with large-grit aluminum oxide

Answer

Large-grit sandblasting (SLA surface) creates macro- and micro-roughness that enhances protein adsorption and osteoblast adhesion.

Question 2

A patient presents with peri-implantitis showing 6 mm probing depths and radiographic bone loss of 3 mm. According to current AAP/EFP classification, this represents which stage?

Accepted Answer

Moderate peri-implantitis

Answer

Moderate peri-implantitis is defined by bone loss of 25-50% of implant length or 3–4 mm from the expected bone level, corresponding to this clinical presentation.

Question 3

The critical threshold for keratinized tissue width around dental implants that is associated with reduced peri-implant inflammation is:

Accepted Answer

≥2 mm

Answer

A keratinized tissue width of ≥2 mm around implants is associated with better plaque control, less mucosal inflammation, and reduced bone loss.

Question 4

Which of the following best describes platform switching in implant dentistry?

Accepted Answer

Using a smaller diameter abutment than the implant platform diameter

Answer

Platform switching uses an abutment with a smaller diameter than the implant platform, moving the microgap inward and reducing crestal bone resorption.

Question 5

Immediate loading of dental implants requires a minimum insertion torque of:

Accepted Answer

35 Ncm

Answer

Immediate loading protocols generally require a minimum insertion torque of 35 Ncm to ensure adequate primary stability for early osseointegration.

(ABP) American Board of Periodontology Practice Test

(ABP) American Board of Periodontology Practice Test

ABP Implant Dentistry 2