CIT Implant Design & Fabrication 2

Question 1

Which implant surface treatment increases surface roughness to promote osseointegration by creating a microtopography that enhances osteoblast attachment?

Accepted Answer

Acid etching with HCl/H2SO4

Answer

Acid etching with HCl/H2SO4 creates a micro-rough surface topography that significantly enhances osteoblast adhesion and osseointegration.

Question 2

A tapered implant body design is primarily chosen over a parallel-walled design in which clinical scenario?

Accepted Answer

Extraction sockets with divergent walls

Answer

Tapered implants conform well to the natural shape of extraction sockets, allowing better primary stability when socket walls diverge apically.

Question 3

What is the primary function of the implant neck (collar) design in reducing crestal bone loss?

Accepted Answer

Providing a rough microgrooved surface to engage cortical bone

Answer

Microgrooved or roughened implant necks engage cortical bone and help maintain crestal bone levels by reducing stress concentrations.

Question 4

Hydroxyapatite (HA) coating on dental implants is applied primarily to:

Accepted Answer

Accelerate early bone-to-implant contact and osseointegration

Answer

HA coatings are bioactive and mimic natural bone mineral, accelerating early osseointegration by promoting direct bone apposition.

Question 5

In a platform-switching design, the prosthetic abutment diameter is smaller than the implant platform diameter. This configuration primarily:

Accepted Answer

Shifts the microgap away from the crestal bone to reduce bone resorption

Answer

Platform switching moves the implant-abutment junction inward, repositioning biological width establishment away from crestal bone and reducing resorption.

(CIT) Certified Implantology Technician Practice Test

(CIT) Certified Implantology Technician Practice Test

CIT Implant Design & Fabrication 2