The stability of a mandibular complete denture will be enhanced when:

A. The level of occlusal plane is above the dorsum of the tongue

B. The tongue rests on the occlusal surface

C. The lingual contour of the denture is concave

D. The posterior teeth on the denture have a broad buccolingual width

Correct Answer: The tongue rests on the occlusal surface

Description: Ideally, the best stability occurs when the occlusal plane is parallel and anatomically oriented to the ridges. An occlusion plane that is too high, forces the tongue into a new position. This can disrupt the normal position of the floor of the mouth resulting in partial loss of the border seal.

Category: Dental

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