Clasp

a clasp is a metal component of a partial denture or orthodontic appliance that secures the appliance to the remaining natural teeth, providing stability and retention. It is that component of the partial denture that rests against the vertical enamel surfaces of an abutment tooth and aids in bracing and retention.

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  The images above show the Removable Partial Denture (RPD) for a patient whose mandible is partially edentulous. Their mouth is Kennedy classification II RPD as evidenced by the unilateral row of teeth on the right side of the denture. An embrasure clasp is viewable on the device's left half, as well as two cingulum rests for the two canine's on the mandible. The major connector is either a lingual bar or a sublingual bar.

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  The images above show the same Removable Partial Denture (RPD) for a patient whose mandible is partially edentulous. Their mouth is Kennedy classification II RPD as evidenced by the unilateral row of teeth on the right side of the denture. An embrasure clasp is viewable on the device's left half, as well as two cingulum rests for the two canine's on the mandible. The major connector is either a lingual bar or a sublingual bar.