Evaluation of the retentive force of a b-type Ti-6Mo-4Sn alloy wire clasp.
The retentive force of a wire clasp composed of a b-type Ti-6Mo-4Sn alloy (b-Ti alloy) with a low Young modulus was evaluated using a piezoelectric transducer to determine the appropriate undercut for removable partial dentures. There were no significant differences in retentive force between a b-Ti alloy wire with a 0.50-mm undercut and a cobalt-chromium alloy (Co-Cr alloy) wire with a 0.25-mm undercut, or between a b-Ti alloy wire with a 0.75-mm undercut and a Co-Cr alloy wire with a 0.50-mm undercut. The b-Ti alloy wire may be applicable for abutment teeth with a large number of undercuts. Int J Prosthodont 2010;23:38-41.
Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan. n-yoda@umin.ac.jp
Nobuhiro
N
Yoda
Masayoshi
M
Yokoyama
Genki
G
Adachi
Masatoshi
M
Takahashi
Keiichi
K
Sasaki
D002858:Chromium Alloys; D000044:Dental Abutments; D003722:Dental Alloys; D016734:Dental Clasps; D003799:Dental Stress Analysis; D003781:Denture Retention / Q000295:instrumentation*; D003832:Denture, Partial, Removable; D006801:Humans; D008422:Materials Testing; D014025:Titanium; D019231:Tooth Preparation, Prosthodontic
D002858:Chromium Alloys; D003722:Dental Alloys; C023988:beta titanium; D014025:Titanium