Occlusion For Conventional Dentures

Question 1

Step 1 of jaw reg?

Answer 1

Adjust upper block for retention
- overextension
- bulky block
- too much lip support

Question 2

Step 2 jaw reg?

Answer 2

Adjust upper block to tooth position

L ip support
I ncisal level
M idline
B uccal corridor

Question 3

Step 3 jaw reg?

Answer 3

Adjust upper record block for occlusal plane
(O in LIMBO)

Use of fox’s bite plane to match ala tragus line and interpupillary line

Question 4

Step 4 jaw reg?

Answer 4

Lower toot position and horizontal jaw relationship

Teeth set in neutral zone
- Space between lips and cheeks on one side and tongue on the other, where forces balance out

Anterior teeth - over ridge
Posterior teeth - over ridge
Polished surfaces - no buccal overextension

Question 5

Step 5 jaw reg?

Answer 5

Measure vertical dimension and establish face height

• measure FWS

Question 6

Issues with excessive FWS?

Answer 6

Reduced masticatory function

Over closed facial appearance

TMJ symptoms

Question 7

Issues with inadequate FWS?

Answer 7

Excessive load on denture bearing area

Continuous muscular activity resulting in pain when wearing denture

Aesthetic complaints of large teeth / showing too much tooth

Question 8

Step 6 jaw reg?

Answer 8

Record reg

• mark centrelines
• cut notches on upper and lower block when using jaw reg paste

Question 9

Stage 7 jaw reg?

Answer 9

Select shade and mould of tooth and write lab prescription