Part 3 Theories

Question 1

How did you assess the patient’s OVD?

Answer 1

TKTK

Started by measuring the patient’s VDR compared with the patient’s VDO, which I found to be approximately 2mm? 3mm?

Assessed patient’s esthetics. I believed she looked TKTK
(Lips looked downturned?) but facial thirds were balanced. And I did not believe opening the vertical dimension would improve this contour significantly. I also did not want to compromise lip competence (?)

Question 2

Who discussed using facial esthetics as a guide for VDO?

Answer 2

Turrell

He observed the harmony of the lower 1/3 of the face with the rest
of the face, lip contour, appearance of skin from margin of lower lip to lower chin border, and looked at the labiomental angle and stated that the difference between VDO and
VDR should be barely detectable.

Question 3

VDR vs. VDO assessment?

Answer 3

Based on measurements of VDR and VDO with markings on the nose and chin (Pleasure) I had patient swallow and relax jaw with eyes closed to determine the VDR

Tallgren found no difference in 3 different methods of VDR: fatiguing, phonetics, no command relaxation and Shanahan used swallowing to find VDO with wax rims) and say “m” (Schlosser)

Question 4

What is the average interocclusal rest space?

Answer 4

Boucher: 2-4mm

Pound: depends on skeletal classification
- class I: 3-5mm
- class II: >5mm
- class III: <3mm