INFRABULGE- COMES FROM BELOW THE BULGE
 I bar
 T bar
 Modified T bar
 Y bar

Bar clasp (Gingivaly approaching clasp/ infrabulge)
 Anterior canines in maxillary
 Aesthetic situations
 Most retentive
 Because canines have very less undercuts.
 Contraindication
o When there is not enough vestibular depth
o When there is undercut in that area – coz it will engage there while removal, and traumatize the tissue, hurt the patient

CLASP ASSEMBLIES

RPI system
 R-Rest (always mesial), P-proximal plate, I- I bar
 MO, distally, buccally

RPA / RPC system
 R-Rest (always mesial, P-proximal plate , A-akers retentive arms (Always wrought wire)
 Aker’s retentive — made of wrought wire.

Q. Occlusal rest for support (resist vertical forces)