CDT CDT Complete Denture Fabrication

Question 1

What is the purpose of a custom tray in complete denture fabrication?

Accepted Answer

To create a close-fitting tray that produces a more accurate final impression

Answer

To provide a reusable stock impression tray for efficiency

Answer

To record jaw relation records

Answer

To serve as the final denture base

Question 2

What does 'freeway space' (interocclusal distance) refer to in complete denture prosthodontics?

Accepted Answer

The space between the posterior teeth when the patient is at rest, minus the occlusal vertical dimension

Answer

The distance between the maxillary and mandibular ridges at maximum intercuspation

Answer

The lateral distance between the denture flanges

Answer

The clearance between the denture base and the palate

Question 3

What is the primary function of a wax occlusal rim (bite rim) during complete denture fabrication?

Accepted Answer

To record vertical dimension, centric relation, and lip support for tooth arrangement

Answer

To serve as the final occlusal surface of the denture

Answer

To act as a spacer for the impression material

Answer

To test the fit of the denture base before processing

Question 4

What articulator movement is recorded by a facebow transfer?

Accepted Answer

The spatial relationship of the maxillary arch to the temporomandibular joints

Answer

Lateral excursive movements

Answer

Protrusive movements

Answer

The centric occlusion record

Question 5

Which factor most commonly causes a complete denture to lose retention over time?

Accepted Answer

Residual ridge resorption reducing the tissue-bearing area

Answer

Polishing the denture base too smoothly

Answer

Using acrylic teeth instead of porcelain

Answer

Over-extension of the lingual flange

Question 6

What is 'centric relation' in the context of complete denture fabrication?

Accepted Answer

The most retruded, unstrained position of the mandibular condyles in the fossae

Answer

The position of maximum intercuspation of the denture teeth

Answer

The rest position of the mandible

Answer

The position recorded when the patient swallows