Roach clasp


bar clasp

1. a clasp the arms of which are bar-type extensions from major connectors or from within the denture base; the arms pass adjacent to the soft tissues and approach the point of contact on the tooth in a gingivoocclusal direction; 2. a clasp consisting of two or more separate arms located opposite each other on the tooth; the bar arms arise from the framework or from a connector and may traverse the soft tissue; one arm (bar), the retentive arm, usually terminates in the infrabulge (gingival convergence) area of the tooth; the other, the reciprocal arm, usually terminates on the suprabulge (occlusal convergence) area. Synonym(s): Roach clasp

Roach,

F. Ewing, U.S. prosthodontist, 1868-1960. Roach clasp - part of a denture or retainer. Synonym(s): bar clasp

bar clasp

(bahr klasp) 1. Clasp with arms that are bar-type extensions from major connectors or from within denture base; arms pass adjacent to soft tissues and approach point of contact on the tooth in a gingivoocclusal direction. 2. Clasp consisting of two or more separate arms located opposite each other on the tooth; bar arms arise from the framework or from a connector and may traverse the soft tissue; one arm (bar), the retentive arm, usually terminates in the infrabulge (gingival convergence) area of the tooth; the other, the reciprocal arm, usually terminates on the suprabulge (occlusal convergence) area.
Synonym(s): Roach clasp.