Prosthodontics & Occlusion · single question
A maxillary complete denture's posterior buccal flange shape in the coronomaxillary region is dictated by movement of the:
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Correct answer: C. Coronoid process of the mandible
- A. Incorrect – the soft palate determines the posterior palatal seal, not the buccal flange.
- B. Incorrect – buccinator influences the buccal sulcus generally, but the specific coronomaxillary thinning is from coronoid movement.
- C. Correct – lateral mandibular movement swings the coronoid process forward/medially into the coronomaxillary space, so the distobuccal flange must be thinned to accommodate it.
- D. Incorrect – the tongue shapes the lingual/polished surfaces of a lower denture, not the maxillary buccal flange here.
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