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Volume 7 , Issue 1
Spring 1992

Pages 35-39

Implant Superstructures: A Comparison of Ultimate Failure Force

Edwin A. McGlumphy, DDS, MS/David M. Robinson, DDS/Deborah A. Mendel, DDS

PMID: 1398821

Because of reported prosthodontic failures, alternative implant abutments and screws with suggested strength superiority have been manufactured. However, little quantitative data are available to support these claims. This study compared the force necessary to cause failure in many of the more commonly used implant and abutment combinations. An 18-mm cantilever test prosthesis was constructed for each system and loaded on an MTS machine until failure occurred (n = 5 for each sample). The mean failure forces ranged from 1.22 to 17.23 kg. The failure force and location of failure for each individual system are reported. (INT J ORAL MAXILLOFAC IMPLANTS 1992;7:35-39.)

Key words: dental implants, failure, prosthetic components

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