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Volume 8 , Issue 5
September/October 1993
Pages 512-522

Force-Moment Systems on Single Maxillary Anterior Implants: Effects of Incisal Guidance, Fixture Orientation, and Loss of Bone Support

Thomas R. Katona, PhD, DMD/Charles J. Goodacre, DDS, MSD/David T. Brown, DDS, MS/W. Eugene Roberts, DDS, PhD

PMID: 8112790

An engineering model of maxillary single anterior implants was developed to calculate the force-moment systems resulting from occlusal contacts. Analysis of a clinical example showed that flattening the incisal guidance and/or placing the implant in a more upright position reduced the moment and the labial component of the force but increased the intrusive component. The calculations are applicable to the design of implants and may help in the long-term evaluation of clinical success. (INT J ORAL MAXILLOFAC IMPLANTS 1993;8:512–522.)

Key words: biomechanics, dental implants, implant failure, prosthodontics

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