Restorative & Materials · single question
After RCT and a buildup of a maxillary premolar's functional (palatal) cusp, which mandibular excursive movement is the primary source of physiologic occlusal wear on that cusp?
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Correct answer: D. Working-side movement
Functional (centric-holding) cusps make their primary occlusal contacts during working-side excursions. Repeated loading from working-side movement is the chief source of ongoing physiologic wear on a tooth's functional cusp.
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