题目内容

When the mandible is in the normal intercuspal occlusion, the cusp tips of maxillary canines are facing ()

A. the mesial margins of mandibular canines
B. the cusp tips of mandibular canines
C. the distal margins of mandibular canines
D. the buccal cusps of mandibular first premolars
E. There is no clear mark.

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Which teeth are essential for building a normal occluding relation so that they should be reserved from extraction? ()

A. Canines
B. First premolars
C. Second premolars
D. First molars
E. Second molars

The contact relation of protrusive occlusion in complete denture is ()

A. There is contact in the anterior teeth but not in the posterior teeth.
B. There is contact in the posterior teeth but not in the anterior teeth.
C. There is contact both in the anterior teeth and the posterior teeth.
D. All teeth have contact.
E. None of the above is true.

The hinge movement starts from ()

A. The intercuspal position
B. The retruded contact position
C. The mandibular postural position
D. The protrusive occlusal position
E. The lateral occlusal position

Which mandibular position is mainly determined by muscles? ()

A. ICP
B. RCP
C. MPP
D. CR

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