Lower Denture Problems — ORE Part 1 MCQ
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Correct answer: B — Problems are more common with the lower denture
Explanation lettering: E = shown as A · A = shown as B · D = shown as C · C = shown as D · B = shown as E
The correct answer is A. Conventional complete lower dentures are generally more problematic than upper dentures, particularly because mandibular dentures have less favourable retention and stability. The lower denture has a smaller supporting area, is affected by movement of the tongue, floor of mouth and mandible, and is often compromised by residual ridge resorption. This is why poor retention and stability of conventional mandibular dentures are recognised causes of difficulty and why implant retention can improve patient-reported outcomes. B is incorrect because the arches do not provide equivalent conditions for denture retention. C reverses the usual clinical pattern. D and E are inconsistent with the substantial functional and retention difficulties that may occur with conventional complete dentures, especially in the mandible.
Reference: Nogueira TE, Dias DR, Leles CR. Mandibular complete denture versus single-implant overdenture: a systematic review of patient-reported outcomes. Journal of Oral Rehabilitation, 2017. https://pubmed.ncbi.nlm.nih.gov/28805255/