Posselts envelope of motion:
Described by Dr. Posselt
He described 3-dimensional movement of mandble in 3-planes
1. Sagittal
2. Frontal
3. Horizontal
these movements are called border movements as they detail the maximum movement of mandible in all these 3 planes
The shape of posselt's envelop of motion in each plane is:
Sagittal - Beak shaped
Frontal - Shield shaped
Horizontal - Diamond shaped
10 дек 2019
