Variations in occlusal forces with a resilient internal implant shock absorber.
The importance of an internal shock absorber for implant prostheses has concerned many, primarily because the efficacy of a shock absorber to reduce stress has not been demonstrated in vivo. This study examined 15 subjects with unilateral distal extension single implant abutments attached to a single natural tooth abutment to assess the effect of a shock-absorbing element within the implant on occlusal force levels. Occlusal forces and bilateral occlusal similarity were examined using specially adapted research software for the T-Scan occlusal analysis system. The results indicate that there is a significant difference (P less than 0.011) between occlusal forces using an internal shock absorber (18 N) and a titanium internal element (30 N).
Chapman
R J
RJ
Tufts University School of Dental Medicine, Boston, Massachusetts 02111.
Kirsch
A
A
D000328:Adult; D000368:Aged; D001732:Bite Force; D003199:Computer Systems; D003758:Dental Implantation, Endosseous / Q000295:instrumentation*; D015921:Dental Implants; D003766:Dental Occlusion; D003799:Dental Stress Analysis; D003779:Denture Design; D003830:Denture, Partial, Fixed; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012117:Resins, Synthetic; D013314:Stress, Mechanical
D015921:Dental Implants; D012117:Resins, Synthetic; C010102:delrin