Prosthodontics & Occlusion · single question
When fabricating a maxillary complete denture impression, which anatomical feature do you prefer to capture for optimal retention?
Show answer and explanation
Correct answer: A. Depth of the buccal vestibule
A) Depth of the buccal vestibule — CORRECT.
For the maxillary complete denture, retention relies heavily on the peripheral seal at the borders. Capturing the full depth of the buccal vestibule (without overextension) maximizes the border seal and denture retention. The functional impression extends to — but does not exceed — the functional depth of vestibular tissues.
B) High palate: A high palatal vault is advantageous for stability but is a patient anatomical feature — not something you "prefer to capture."
C) Retromolar pad: More relevant to MANDIBULAR denture fabrication.
D) Buccal shelf: Primary stress-bearing area for MANDIBULAR dentures.
For the maxillary complete denture, retention relies heavily on the peripheral seal at the borders. Capturing the full depth of the buccal vestibule (without overextension) maximizes the border seal and denture retention. The functional impression extends to — but does not exceed — the functional depth of vestibular tissues.
B) High palate: A high palatal vault is advantageous for stability but is a patient anatomical feature — not something you "prefer to capture."
C) Retromolar pad: More relevant to MANDIBULAR denture fabrication.
D) Buccal shelf: Primary stress-bearing area for MANDIBULAR dentures.
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