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27 Cards in this Set
- Front
- Back
Contact of the maxillary teeth with the moving mandibular teeth |
Dynamic Occlusion |
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Any movement of the mandible from MI resulting from to tooth to tooth contact is called? 3 examples of this are? |
Contacting Eccentric Movements Protrusive Retrusive Laterotrusive |
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The lower anterior teeth gliding along the lingual surfaces of the maxillary anterior teeth and disocclude the posterior teeth is called? |
Protrusion |
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The influence of the contacting surfaces of the anterior teeth on mandibular movement is called? During protrusion, what 2 things are mechanically coupled to disocclude posterior teeth? The creation of space between the posterior teeth bilaterally during protrusion or on the mediotrusive side during lateral excursions is called? |
Anterior Guidance Condylar Guidance and Anterior Guidance Christensen's phenomenon |
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__ is a form of eccentric movement There are guided test movements employed by dentists to asses occlusal functions such as? |
Chewing Protrusion Working movements Nonworking movements |
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Which cusp (of what tooth) follows the P pathway shown in the diagram? |
19 Distobuccal |
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Which cusp (of what tooth) follows the P pathway shown in the diagram?
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14 Mesiolingual |
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D |
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A |
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C |
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3 |
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What are 3 determinants of Mandibular Motion? |
Teeth Musculature TMJ |
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Mandibular pathways directed away from the midline are termed? Mandibular pathways directed toward the midline are termed? |
Laterotrusion/ Working side/ Functioning Side Mediotrusion/ Nonworking Side/ Balancing Side |
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Left lateral mandibular motion is the result of rotation of the __ around a vertical axis and translation of the __ downward, inward, and forward |
Left lateral mandibular motion is the result of rotation of the left working condyle around a vertical axis and translation of the right nonworking condyle downward, inward, and forward
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Right lateral mandibular motion is the result of rotation of the __ around a vertical axis and translation of the __ downward, inward, and forward |
Right lateral mandibular motion is the result of rotation of the right working condyle around a vertical axis and translation of the left nonworking condyle downward, inward, and forward
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The vertical displacement in the incisor point line from MI to e or d is the result of the teeth gliding over each other usually the? |
Canines |
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Cuspid on the laterotrusive side guides the mandible and disoccludes the posterior teeth in laterotrusive movement (Christensen's phenomenon) is called? This is coupled with? |
Canine Guidance Lateral Condylar Guidance on the mediotrusive side |
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Mutually Protected Occlusion: In MI posterior teeth prevent excessive contact of anterior teeth. -Chewing force is mostly here In excursive movements, anterior teeth disengage posterior teeth protecting them from forces that are not directed along their long axes Why is this important? |
Powerful muscles of mastication are near posterior teeth |
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Multiple posterior tooth contacts on the working side during lateral jaw movement is called? This is no as desirable as canine guidance |
Group Function Right sided group function is shown |
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Laterotrusive and Mediotrusie pathways: If we trace the movement of the mandible in the horizontal plane at any point, __ pass between opposing cusps __ are parallel in the direction of the non-working condyle |
Latertrousive (working) pathways
Mediotrusive (non-working) pathways |
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Mesiobuccal cusp of tooth 18 Moving to the left |
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Lingual cusp of 13 Moving left |
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