Roach clasp arm refers to: (A) Retentive terminal of circumferential clasp, (B) Reciprocal arm of circumferential clasp, (C) Bar type clasp, (D) None of the above
Answer is C. The term 'bar clasp' is generally preferred over the less descriptive term 'Roach clasp arm'. Reduced to its simplest term, the bar clasp arm arises from the denture framework or a metal base and approaches the retentive undercut from a gingival direction.