CDC CDC Dental Materials & Technology 2

Question 1

Which restorative material both releases fluoride over time and chemically bonds to tooth structure through ion exchange?

Accepted Answer

Glass ionomer cement

Answer

Glass ionomer cement releases fluoride ions that help prevent secondary caries and forms a chemical adhesive bond to enamel and dentin through ion exchange.

Question 2

What is the primary function of a dental bonding (adhesive) agent?

Accepted Answer

To create micromechanical and chemical retention between composite resin and tooth structure

Answer

A dental bonding agent infiltrates the micro-porosities created by acid etching and forms both micromechanical retention in enamel and a hybrid layer in dentin, bonding composite resin to the tooth.

Question 3

What property of dental materials does the Vickers Hardness Number (VHN) measure?

Accepted Answer

Surface resistance to indentation, correlating with wear resistance

Answer

The Vickers Hardness Number quantifies a material's resistance to surface indentation by a diamond pyramid indenter, which correlates with its abrasion and wear behavior.

Question 4

Which implant design is the most widely used in contemporary implant dentistry?

Accepted Answer

Endosseous (root-form) implant

Answer

Endosseous root-form implants are placed directly into the jawbone and have become the dominant design due to high long-term success rates and favorable biomechanical integration.

Question 5

How is the term 'osseointegration' best defined in dental implantology?

Accepted Answer

The direct structural and functional bond between living bone and the surface of a load-bearing implant

Answer

Osseointegration, as defined by Brånemark, is the direct structural and functional connection between organized living bone and the surface of a load-bearing endosseous implant.

(CDC) Certified Dental Consultant Practice Test

(CDC) Certified Dental Consultant Practice Test

CDC CDC Dental Materials & Technology 2