What does “Clasp on a removable partial denture” mean?
A clasp is a retaining component shaped like a hook that engages a remaining tooth to help keep a partial denture from coming out. It uses the tooth’s shape to retain the denture and works with the other denture components.
The clasp uses the contour of the tooth for retention
The tip of a clasp engages the area where the tooth narrows below its greatest bulge, resisting movement that would dislodge the denture. Other components, including rests, work together to support the denture against movement toward the gum and reduce sideways movement. The overall denture design and condition of the supporting teeth also matter.
Do not force a denture into place by biting
Insert and remove the denture along the path you have been shown. Biting down on a denture that will not seat can bend or damage the clasp. A denture that suddenly becomes difficult to insert or presses on a particular tooth needs its fit checked.
Identify why the denture is loose
Movement may result from changes in the gums or bone or a poor fit as well as a deformed clasp. Have the cause assessed rather than bending the clasp yourself with pliers. Clean the teeth and areas touched by the clasps, and remove the denture to clean it too.
Frequently Asked Questions
Does tightening the clasp always make a denture fit well?
No. Tightening a clasp cannot resolve every problem with the fit against the gums or the supporting structure. The overall fit and the condition of the clasp and teeth are assessed together.
Can a visible clasp be replaced with another design?
Other designs, such as precision attachments, may be considered, but the condition of the remaining teeth and any need for crowns can affect the treatment required. Compare the scope of treatment and care as well as visibility.
Questions about denture clasps
Learn what the term means and how it relates to your dental condition.
- Care after treatment
Is the tooth supporting the clasp healthy?
Explanation and evidenceCheck the condition of the tooth retaining the denture and which areas need cleaning.
American Dental Association · Partial dentures - A choice suited to your condition
Is the looseness caused by the clasp or by the fit of the base?
Explanation and evidenceThe cause determines what needs adjustment and how, so do not treat every loose denture as a clasp-tightening problem.
American Dental Association · Partial dentures
