CCA Adhesives & Retention Systems

Question 1

What is the primary adhesive type used for securing craniofacial prostheses to facial skin?

Accepted Answer

Medical-grade silicone adhesives

Answer

Cyanoacrylate-based adhesives

Answer

Epoxy-based adhesives

Answer

Polyurethane-based adhesives

Question 2

Which property of a prosthetic adhesive is MOST important for patient comfort and long-term skin health during extended daily wear?

Accepted Answer

Vapor permeability

Answer

High tensile strength

Answer

Rapid cure time

Answer

Optical clarity

Question 3

What is the recommended application method for medical adhesive when fitting a facial prosthesis?

Accepted Answer

Application to both the prosthesis margin and the corresponding skin area, allowing each coat to become tacky

Answer

Brush application to the prosthesis margin only

Answer

Spray application to the entire skin surface

Answer

Injection into the prosthesis-skin interface after placement

Question 4

Which solvent is most commonly recommended for removing medical-grade silicone adhesive residue from facial skin?

Accepted Answer

Medical adhesive remover (silicone solvent-based)

Answer

Acetone

Answer

Isopropyl alcohol

Answer

Soap and water alone

Question 5

Which factor MOST adversely affects adhesive bond strength in facial prosthetic retention?

Accepted Answer

Skin oils, perspiration, and surface moisture

Answer

Low ambient temperature

Answer

High altitude environments

Answer

Dark skin pigmentation

Question 6

Which retention alternative is MOST appropriate for a patient with documented severe contact allergy to all tested medical-grade adhesives?

Accepted Answer

Osseointegrated implant-retained magnetic or bar-clip system

Answer

Increased adhesive concentration to shorten contact time

Answer

Double-sided hypoallergenic foam tape

Answer

Cyanoacrylate spot-bonding at the prosthesis periphery

Question 7

During patient education, the anaplastologist explains that medical adhesive should be allowed to become 'tacky' before joining surfaces. This stage is technically described as:

Accepted Answer

Open time

Answer

Polymerization

Answer

Gel phase

Answer

Cohesive failure