Prosthodontics & Occlusion · single question
Which structure of the maxillary complete denture will interfere with the patient's functional mandibular movements?
Show answer and explanation
Correct answer: A. Excessive width of posterior buccal flanges
✓ A) Excessive width of posterior buccal flanges is correct.
The posterior buccal flanges of the maxillary denture must be properly contoured to allow the coronoid process of the mandible to move freely during jaw opening, lateral, and protrusive movements. Excessively wide posterior buccal flanges encroach on the pterygomandibular raphe and buccinator corridor, causing the denture to be displaced or causing discomfort during function.
The posterior buccal flanges of the maxillary denture must be properly contoured to allow the coronoid process of the mandible to move freely during jaw opening, lateral, and protrusive movements. Excessively wide posterior buccal flanges encroach on the pterygomandibular raphe and buccinator corridor, causing the denture to be displaced or causing discomfort during function.
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