Verified Dental Lab Tech Complete Questions & Answers (100%Verified Solutions) 2026/2027 Update

DENTAL LAB TECH COMPLETE QUESTIONS & ANSWERS (100%
VERIFIED SOLUTIONS) 2026/2027 UPDATE


Which incoming work should be treated by the laboratory

according to approved infection control protocol?



a. Cases not disinfected by the dental office

b. Only known infected cases

c. Cases of unknown status

d. Every case - CORRECT ANSWER -d. Every case



A linear elevation of enamel which creates the mesial and distal boundaries on the occlusal
surface of each posterior tooth is the



a. Triangular ridge.

b. Transverse ridge.

c. Oblique ridge.

d. Marginal ridge. - CORRECT ANSWER -d. Marginal ridge.



As compared to gold alloys, chromium cobalt alloys



a. Are less rigid.

b. Melt at higher temperatures.

c. Are generally softer.

d. Have a lower tensile strength. - CORRECT ANSWER -b. Melt at higher temperatures.



Iodophors are used in the laboratory as a

, a. Tinfoil substitute.

b. Polishing agent.

c. Gypsum additive.

d. Surface disinfectant. - CORRECT ANSWER -d. Surface disinfectant.



The influence of the anterior teeth on the movement of the mandible in protrusion is called



a. Malocclusion.

b. Balanced occlusion.

c. Posterior guidance.

d. Incisal guidance. - CORRECT ANSWER -d. Incisal guidance.



The centric holding cusps for a mandibular first molar are the



a. Mesial cusps.

b. Lingual cusps.

c. Buccal cusps.

d. Distal cusps. - CORRECT ANSWER -c. Buccal cusps.



Shrinkage of casting alloys is primarily compensated for by



a. Over-sizing the wax pattern.

b. Expansion of the mold material.

c. Increasing the size of the master model.

d. Using more metal. - CORRECT ANSWER -b. Expansion of the mold material.