CCE Preliminary & Diagnostic Work Up 3

Question 1

Which of the following best describes the purpose of a diagnostic mock-up applied directly in the patient's mouth?

Accepted Answer

To allow intraoral evaluation of proposed tooth shape and length before any preparation

Answer

An intraoral mock-up uses provisional composite or bisacryl material to preview proposed changes directly on the patient's teeth without altering tooth structure.

Question 2

During the preliminary evaluation, the ceramist notes that a patient's existing PFM crowns have black gingival margins. What does this indicate for planning all-ceramic replacements?

Accepted Answer

Metal substructure oxidation is telegraphing through; all-ceramic restorations should eliminate this issue

Answer

Black or gray gingival margins on PFM crowns result from metal oxide show-through; replacing them with metal-free all-ceramic restorations removes this esthetic problem.

Question 3

What is the significance of recording centric relation (CR) during the preliminary work-up?

Accepted Answer

It provides a reproducible reference position of the condyles to mount casts accurately

Answer

Centric relation is the most reproducible and stable mandibular position and serves as a reliable starting point for mounting diagnostic casts and designing occlusion.

Question 4

A patient presents with multiple failing ceramic restorations that fractured within two years of placement. What preliminary diagnostic step is most important before replacement?

Accepted Answer

Identifying the occlusal load or parafunctional habits contributing to failure

Answer

Understanding why restorations failed—such as bruxism, heavy occlusal contacts, or inadequate preparation—is essential to prevent recurrence.

Question 5

In the preliminary work-up, the ceramist evaluates the patient's lip line at full smile. A high lip line affects ceramic design primarily because:

Accepted Answer

The gingival margin and cervical third of restorations will be visible and must be esthetically refined

Answer

A high lip line exposes the gingival margins of anterior restorations during smiling, making precise margin placement and cervical contour critical to the final esthetic result.

(CCE) Certified Ceramist Practice Test

(CCE) Certified Ceramist Practice Test

CCE Preliminary & Diagnostic Work Up 3