Precision Attachment Purpose — ORE Part 1 MCQ
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Correct answer: E — To retain the denture without visible clasp arms
Explanation lettering: D = shown as A · C = shown as B · E = shown as C · B = shown as D · A = shown as E
A precision attachment provides a concealed mechanical connection between an RPD and prepared abutment tooth or teeth. Its principal purpose is retention while avoiding visible clasp arms, thereby improving appearance; some designs can also contribute to stability or alter load transfer. B is incorrect because attachments do not change the cutting efficiency of artificial teeth. C is incorrect because denture-base strength depends mainly on base material, thickness and design. D is too absolute: certain resilient attachments may have a stress-relieving role, but this is not universal or their sole purpose. E is incorrect because the major connector remains necessary to unite the components and provide rigidity.
Reference: Al Jabbari YS, et al. Unilateral semi-precision removable partial denture utilizing Bredent VKS-SG attachment system. Case Reports in Dentistry, 2009. https://pubmed.ncbi.nlm.nih.gov/19722480/