Prosthodontics

Clasp Type	Key Features	Indications
Circumferential (Akers)	Cast, engages undercut from opposite side	Common in tooth-supported RPDs
Bar (Roach)	Approaches undercut from gingival direction	Used when esthetics are a concern
Ring Clasp	Encircles nearly the entire tooth	Useful for tipped molars
Combination Clasp	Wrought wire retentive arm + cast reciprocal arm	Offers flexibility and adaptability
Hairpin Clasp	U-shaped; engages deep undercuts	Rarely used; specific anatomical needs