BASS DYNAMAX APPLIANCE

Preliminary mark up of models:

1. Mark centric occlusion on models and hold together.

2. Mark position of labial of lower incisors on upper model.

3. Decide if case is:-

A. a half unit Class II with molars end to end (this is the most common)
B. a full unit Class II with premolars (bicuspids) one full unit out of position
C. one third of a unit Class II

Note: Left and right shoulders can be in different positions