title: A comparison of various removable partial denture clasp materials and fabrication procedure for placing clasps on canine and premolar teeth.
abstract: There is no established protocol for selection among the different retentive material-attachment combinations for clasps other than tradition or laboratory preference. Various wrought-wire, cast-metal, and thermoplastic materials were subjected to several fabrication procedures and tested in a custom-designed force displacement apparatus. The wrought wires included ADA Spec. No. 7 type I and type II alloys and other precious and nonprecious alloys. A graphic means was devised to allow the rational selection of wrought-wire clasp-arm combinations for placing clasps on canine and premolar teeth. Guidelines for using straight wire data for curved wire applications are indicated.
authors.affiliation: Faculty of Dentistry, University of Alberta, Edmonton, Canada.
authors.forename: J P
authors.initials: JP
authors.lastname: VandenBrink
authors.forename: J F
authors.initials: JF
authors.lastname: Wolfaardt
authors.forename: M G
authors.initials: MG
authors.lastname: Faulkner
mesh_terms: D000180:Acrylic Resins; D001641:Bicuspid; D002858:Chromium Alloys; D003481:Cuspid; D003735:Dental Casting Technique; D016734:Dental Clasps; D012994:Dental Soldering; D003799:Dental Stress Analysis; D003779:Denture Design; D003781:Denture Retention; D003832:Denture, Partial, Removable; D004548:Elasticity; D006047:Gold Alloys; D006801:Humans; D009532:Nickel; D013314:Stress, Mechanical; D014025:Titanium; D014800:Vitallium
chemical_list: D000180:Acrylic Resins; D002858:Chromium Alloys; D006047:Gold Alloys; C040654:titanium nickelide; D014800:Vitallium; C039459:ticonium; D009532:Nickel; D014025:Titanium