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26 Cards in this Set
- Front
- Back
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Occlusion |
Contact of teeth in opposing dental arches when the jaws are closed and when they are in function |
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Static Occlusion |
This contact of teeth in opposing dental arches when the jaws are closed |
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Dynamic Occlusion |
The contact of teeth in opposing dental arches during various jaw movements |
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Centric occlusion Maximum intercuspation |
Relationship of the mandibular dent arch to maxillary dental arch |
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Centric occlusion |
A tooth to tooth relation This occlusion of teeth when the mandible is at centric occlusiob |
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Centric occlusion |
A reference point from which all other relation are eccentric |
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Maximum intercuspation |
The most closed complete interdigitation and maxillary teeth irrespective of condylar centrictly |
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Maximum intercuspation |
May or may not coincide with centric occluson dependinf on the positiob of the condyle |
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True |
1. In an ideal situation, at centric relation the teeth are in maximum intercuspation 2. Alignment of teeth follow a parabolic curve 3. The maxillary arch is bigger than mandibular arch 4. This prevent the lios, cheeks, and tongue from being clipped during function |
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Overjet Overbite |
The maxillary anterior teeth overlap the mandibular teeth |
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Overjet |
Horizontal projection of upper teeth beyond the lower teeth, usually measured parallel to the occlusal plabe |
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2-3mm |
Measurement of Overjet |
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Overbite |
Vertical overlap of the incisors 1-2mm |
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Overbite |
Md incisors and canines contact the lingual surfaces of the opposing teeth |
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Facial occlusal line |
an imarginary arch connectong the row of facial cusps |
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Central fossa line |
an imaginary line connecting the central fossa |
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Supporting cusps |
cusps that connect the opposing teeth along the central fossa line |
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Non supporting cusps |
cusps that overlap the opposing teeth |
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Relation of md to mx, The tmj, muscles, nerves, and ligamebts |
Five factors that contribute to occlusion |
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Vertical Relation Horizontal Relation |
Relation of the Md and Mx |
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Vertical Relation |
Amount of separation or opening between the md and mx |
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Horizontal relation |
Anteroposterior or lateral positions of the md relatove to the mx |
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Horizontal relation |
Centric Protrussive Lateral |
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Centric relation |
Most posterior position of the mandible relative to the maxillae at a given vertical dimension |
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Centric relation |
the maxillo mandibular relationship in which condyles articulate with thinniest avascular portion |
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Protrusive relation |
position of the md moves anteriorlt and downward so that md condyle and disc are forward in md fossa |
