Prosthodontics & Occlusion · single question
What is the purpose of border molding when making a final impression for a complete denture?
Show answer and explanation
Correct answer: B. To record the functional depth and width of the vestibule and adjacent muscle attachments
- A. Centric relation is recorded separately with record bases and rims.
- B. Correct. Border molding captures the functional sulcus so the denture flange is neither overextended (causing dislodgement and soreness) nor underextended (losing peripheral seal and retention).
- C. VDO is established at the jaw-relation appointment, not during impression border molding.
- D. Shade selection is an esthetic step unrelated to border molding.
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