Prosthodontics & Occlusion · single question
Which anatomical structure is NOT involved in (does not contribute to) the posterior palatal seal?
Show answer and explanation
Correct answer: C. Uvula
C) Uvula — CORRECT (NOT part of the posterior seal).
The uvula is a midline soft tissue projection that extends beyond the vibrating line — the denture should NOT extend over the uvula. The posterior palatal seal runs along the vibrating line (the junction of movable and non-movable palate), which passes through the pterygomaxillary/hamular notches bilaterally and through or just anterior to the fovea palatinae. The uvula is posterior to this line and not included in the seal area.
A, B, D) All are landmarks used to establish the posterior palatal seal area/vibrating line.
The uvula is a midline soft tissue projection that extends beyond the vibrating line — the denture should NOT extend over the uvula. The posterior palatal seal runs along the vibrating line (the junction of movable and non-movable palate), which passes through the pterygomaxillary/hamular notches bilaterally and through or just anterior to the fovea palatinae. The uvula is posterior to this line and not included in the seal area.
A, B, D) All are landmarks used to establish the posterior palatal seal area/vibrating line.
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