Dentures Chapter 14

What is the purpose of a facebow transfer?

To position the maxillary cast in the same relation to the articulator's condylar mechanism as in the patient.

What are the theoretical advantages of a facebow?

Limited vertical dimension changes, verification of centric relation at increased vertical dimension, and cast support during mounting.

Is a facebow used in this course?

No; the Kois Dento-Facial Analyzer system with Adjustable Platform and Index Tray is used instead.

What articulator system is used in this course?

Panadent PCH Articulator.

What is the purpose of an articulator?

To simulate mandibular movements and allow denture fabrication outside the mouth.

How should the articulator be prepared before mounting?

Set incisal pin to 0, platform height to 0, lock tray in place, set condylar inclination to "2", and apply silicone spray.

Why is impression plaster preferred over stone for mounting casts?

It sets faster, has less expansion (more accurate), and separates more easily from casts.

What steps are involved in mounting the maxillary cast?

Place cast on tray, line up midline, check clearance, apply plaster, hinge frame forward, let set, reinforce and smooth.

Why must mounting plaster be worked into the plate?

To ensure retention between the cast and mounting plate.

How should the mandibular cast be mounted?

Use sticky wax to secure rims, relate casts with CR record, check for posterior contact, apply plaster, and reinforce once set.

What precautions are taken to avoid cast misalignment when mounting?

Check clearance, avoid posterior contact, trim excess plaster, and ensure clean mounting plates.

What is the centric relation record used for?

To properly relate mandibular cast to maxillary cast on the articulator.

What should be marked on the maxillary occlusion rim before tooth setup?

The facial midline.

What is done after mounting is complete?

Reinforce and smooth mounting, clean articulator, and verify seating of the mounting plates.