Flexible Denture Clasps

• Wrap-Around Clasp
  The wrap-around clasp originates from the buccal or labial flange of the denture base and traverses soft tissue to approach the abutment tooth from a gingival direction.
• High Spur Clasp
  The high spur is a common retainer for Kennedy Class III cases and modifications where natural posterior teeth (tilted with severe undercut) bound the edentulous span.
• Low Spur Clasp
  Low spurs are placed on the natural abutment tooth next to the replacement and positioned close to the neckline in a roughly triangular form so as to appear as natural interproximal papillae.
• Split Clasp
  The split clasp is used whenever the supra bulge portion of the abutment tooth is very wide and narrows substantially towards the infra bulge area, or when a flared or tilted condition of the abutment tooth requires that the retentive arm pass over a very severe high point before engaging undercuts.