The reverse-torque test: a clinical report.
Reverse torque to failure on implants has been studied in animals. Three implants were reverse torqued to failure in a human volunteer, with failure rates between 45 and 58 Ncm. Clinical data are presented on 404 implants examined after reverse-torque testing and loading, with no increase in failure rates. Reverse-torque testing at 20 Ncm appears to be a safe, reliable method for verifying osseointegration with pure titanium screw-shaped implants.
Sullivan
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University of Pennsylvania, School of Dental Medicine, Philadelphia, USA.
Sherwood
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Collins
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TA
Krogh
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PH
D000818:Animals; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D017267:Dental Prosthesis Design; D004195:Disease Models, Animal; D005260:Female; D006801:Humans; D007575:Jaw, Edentulous / Q000601:surgery; D008875:Middle Aged; D016348:Osseointegration; D011475:Prosthesis Failure; D015203:Reproducibility of Results; D012399:Rotation; D012449:Safety; D013314:Stress, Mechanical; D013499:Surface Properties; D014025:Titanium
D015921:Dental Implants; D014025:Titanium