CCA Adhesives & Retention Systems 3

Question 1

In adhesive science applied to facial prosthetics, 'peel strength' specifically measures resistance to forces applied in which direction?

Accepted Answer

At an angle peeling the bond progressively from one edge

Answer

Peel strength measures the force required to progressively separate a flexible adhesive bond starting from one edge at an angle, which is the mode most relevant to a prosthesis edge lifting from skin.

Question 2

In a combination retention system for a midfacial prosthesis, which elements are most commonly integrated?

Accepted Answer

Osseointegrated implant bar-clip framework supplemented with adhesive at the prosthesis margins

Answer

Combining an implant-retained bar-clip framework for primary stability with marginal adhesive for edge seal optimizes both retention strength and cosmetic blending in complex midfacial defects.

Question 3

Which adhesive formulation performs BEST for patients in humid climates or those who perspire heavily during daily activities?

Accepted Answer

Moisture-resistant silicone-based adhesive

Answer

Moisture-resistant silicone-based adhesives maintain bond integrity in the presence of perspiration and humidity, making them the appropriate choice for patients whose skin conditions challenge standard adhesive performance.

Question 4

When using a magnetic retention system for an auricular prosthesis on osseointegrated implants, the magnets are embedded in which components?

Accepted Answer

Both the implant abutment housings and the fitting surface of the prosthesis

Answer

Magnetic retention requires complementary magnets embedded in both the implant abutment housing on the patient side and the prosthesis fitting surface, creating attraction when the prosthesis is properly seated.

Question 5

Which factor is the PRIMARY consideration when selecting between adhesive retention and implant-retained bar-clip retention for an auricular prosthesis?

Accepted Answer

Adequacy of remaining tissue for adhesive retention, patient dexterity, activity level, and preference

Answer

Retention system selection is driven by a comprehensive clinical assessment including available tissue, patient manual dexterity for self-management, physical activity demands, and the patient's informed preference.

(CCA) Certified Clinical Anaplastologist Practice Test

(CCA) Certified Clinical Anaplastologist Practice Test

CCA Adhesives & Retention Systems 3