Determinants of Occlusal Morphology (+Vertical Components)

Determinants of Occlusal Morphology (+Vertical Componen fo fo fo fo fo



ts)
1.What are the 2 types of controlling factors of mandibular movement: Tho
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se that influence the movement of the posterior portion of the mandibl
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e and those that influence the movement of the anterior portion of the
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mandible
2.What is the posterior controlling factor(PCF): TMJ
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3.What are the anterior controlling factors: Anterior teeth
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4.The rate at which the condyle moves inferiorly while the mandible is bei
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ng protruded (translation, condylar guidance) depends on what: Steepness
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of the articular eminence
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5.The condylar guidance angle is the angle at which the condyle moves
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: Away from a horizontal reference plane
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6.Generally, the condylar guidance angle generated by the orbiting condyl
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e when the mandible moves is larger or smaller than when the mandible
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pro- trudes straight forward?: Larger
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7.Why is the angle generated by the orbiting condyle when the mandible
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moves laterally larger than when the mandible protrudes straight forward:
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Bc the medial wall of the mandibular fossa is steeper than the articular
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eminence that is direct anterior to the condyle
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8.The condyles are considered a: Fixed factor
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9.What determines the amount of vertical movement of the mandible: T
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he steepness of the lingual surface of the maxillary anterior teeth
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10. The anterior guidance is considered to be a: Variable factor bc of re
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storations, ortho, extractions etc fo fo fo


11.T/
F the TMJs and anterior teeth can vary, but this doesn't affect the move-
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ment pattern of the mandible: F
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12.The fo




of the tooth is influenced by the pathway it travels across its opposing
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tooth or teeth: Morphology
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13.The closer a tooth is to a controlling factor the more
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he controlling factor has on the tooth
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14.The relationship of a posterior tooth to the controlling factors influen
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ce the: Precise movement of that tooth
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15.If the tooth is nearer to the TMJ, the TMJ will have
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influence on it: More fo fo fo

16.The vertical component of mandibular movement is a function of the
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movement: Superoinferior fo

17.The horizontal component of mandibular movement is a function
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, Determinants of Occlusal Morphology (+Vertical Componen
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ts)
of the fo movement: anteroposterior fo

18.The angle of fo fo fo




from horizontal reference plane is important in the study of mandibular
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movement: Deviation fo




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