Prosthodontics & Occlusion · single question
What is the MOST common cause of gagging in denture wearers?
Show answer and explanation
Correct answer: B. Increased Vertical Dimension of Occlusion (VDO)
✓ B) Increased VDO is correct.
An excessively increased vertical dimension of occlusion causes the mandibular denture to drop posteriorly and the maxillary denture posterior border to impinge on the soft palate/gag reflex zones. This is the most common prosthetic cause of gagging. An overextended maxillary posterior flange and psychological factors are also common causes. The distal extension of the mandibular denture has less relationship to gagging.
An excessively increased vertical dimension of occlusion causes the mandibular denture to drop posteriorly and the maxillary denture posterior border to impinge on the soft palate/gag reflex zones. This is the most common prosthetic cause of gagging. An overextended maxillary posterior flange and psychological factors are also common causes. The distal extension of the mandibular denture has less relationship to gagging.
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