Q5-Mechanics of Mandibular Movement Flashcards
This helps to replicate functional mandibular movement
Gnathic Replicator; Gibbs and Lundeen
This is movement of a body about and axis
rotational
This is movement in which every point of the moving object has simultaneously the same velocity and direction
translational
The velocity of points along a line or axis is what at any instant in time during the rotational movement of a body
zero
How much of a distance is pure rotational movement
20-25mm
This movement around the horizontal axis is an open-closing motion
mandibular movement
mandibular movement around the frontal or vertical axis occurs when what happens
one condyle moves anteriorly out of the terminal hinge and the opposite condyle remains in terminal hinge
mandibular movement around the saggital axis occurs when what happens
one condyle moves laterally out of the terminal hinge and the opposite condyle remains in terminal hinge
This is the position of the mandible as anterior and superior as it can possibly be
centric relation
True or False
centric relation is a clinically repeatable position where the teeth are not required
True
The transverse horizontal axis (THA) is given at what dimension
vertical
condylar translation is which distance until maximum opening
50mm
The sagittal plane is which type of tracing
incisor tracing
maximum protrusion occurs upon
tooth contact
10mm anterior
the mandible retrudes after protrusion and then protrudes again during
ICP (intercuspal position)
