retentive arm

re·ten·tive arm

, retention arm
a flexible segment of a removable partial denture that engages an undercut on an abutment and is designed to retain the denture.

re·ten·tive arm

(rē-tentiv ahrm)
Flexible segment of a removable partial denture that engages an undercut on an abutment and is designed to retain denture.
Synonym(s): retention arm.
References in periodicals archive ?
Two retentive arms were made from 21 gauge stainless steel wire with tags at the end of wire component for retention of the feeding plate.
The rest seats were flared more dramatically to the facial and lingual line angles to provide additional space for the retentive arms and minor connector.