CDC CDC Dental Materials & Technology

Question 1

Which type of intraoral radiograph shows the entire tooth from crown to root apex along with the surrounding alveolar bone?

Accepted Answer

Periapical radiograph

Answer

A periapical radiograph captures the entire tooth—crown, root, and surrounding bone—making it the primary view for diagnosing periapical pathology and root abnormalities.

Question 2

Which property of dental amalgam has historically made it the gold standard for posterior restorations?

Accepted Answer

Exceptional durability and wear resistance

Answer

Dental amalgam's outstanding durability and wear resistance under masticatory forces have historically made it the benchmark material for posterior restorations.

Question 3

What is the primary advantage of digital radiography over conventional film-based radiography?

Accepted Answer

Significantly reduced radiation exposure and immediate image availability

Answer

Digital radiography reduces patient radiation exposure by up to 90% compared to conventional film and provides instant images without darkroom processing.

Question 4

Which property of a dental luting cement measures its resistance to breakdown by oral fluids?

Accepted Answer

Solubility

Answer

Solubility measures how much a cement dissolves in oral fluids; low solubility is essential for maintaining the marginal seal and preventing secondary caries under restorations.

Question 5

What does CAD/CAM stand for in modern dental technology?

Accepted Answer

Computer-Aided Design/Computer-Aided Manufacturing

Answer

CAD/CAM—Computer-Aided Design/Computer-Aided Manufacturing—uses digital scanning and milling to design and fabricate dental restorations chairside or in the lab.

(CDC) Certified Dental Consultant Practice Test

(CDC) Certified Dental Consultant Practice Test

CDC CDC Dental Materials & Technology