PSR03 - Lecture 6 - Definitive Jaw Registration

Question 1

What is the aim of Definitive Jaw Registration? (2)

Answer 1

To enable the secondary casts to be articulated

Prior to setting up the denture teeth

Question 2

How does definitive jaw registration differ for acrylic and cobalt chrome dentures?

Answer 2

Acrylic - use wax baseplate and occlusal rims

Cobalt-chrome - use metal framework with attached occlusal rims

Question 3

How does definitive jaw registration differ to primary jaw registration? (2)

Answer 3

Record shade and mould of the tooth

If anterior - mark the midline (nose) and canine (eyes) lines on wax rim

(Clinical procedure is the same)

Question 4

How should you record shade? (1)

Answer 4

Use natural light (turn off dental light)

Question 5

What is the labratory prescription after definitive jaw registration? (2)

Answer 5

Please articulate casts using the jaw registration record provided

Set up the teeth in wax using shade“X” and mould“Y” for try in