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8 Cards in this Set
- Front
- Back
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Fixed determinants |
All parts of TMJ not readily alterable by dentist. - centric relation -intercondylar distance - angle and curvature of eminence -lateral movements (Bennett) immediate or progressive sideshifts |
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centric relation |
Ability of joint to move about a hinged axis demonstrating natural stability. Also able to slide |
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Articular parts represent? superior wall = posterior wall = medial wall = condylar element = |
S: hard tissue eminence P: capsular ligaments M: capsular ligaments C: centric relation |
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variable determinants |
ant guidance (overbite + overjet) occlusal plane - curve of spee and curve of wilson -vertical position of face - curve of wilson? -antero-posterior tilt - curve of spee? Cusp height -ridges and groove direction |
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Vertical dimension of occlusion |
distance measured b/w any two points when occluding members (teeth) are in contact. |
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How does the horizontal position of the contact point in relation to the midline of the face contribute to function or stability of the teeth? |
It does not contribute, just that teeth don't align properly down the arch |
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Where are the incisal edges position in relation to the tongue? |
incisal edge is just below tip of tongue and vermillion border of lower lip. |
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What is tip degree of teeth in relation to arc of closure |
tipped 20 degrees past vertical with long axis perpendicular to radius line from center of mandibular condyles to incisal edge of tooth |
