Influence of Intensity of Occlusal Contact in Implant-Retained Single Restoration on Stress Distributions of Crown Surface and Supporting Bone

Abstract

Reduction in the intensity of the occlusal contact, or decreased occlusal height of an implant-retained single restoration, allows the establishment of an equivalent occlusal stress with the natural molars under the maximum bite force. This adjustment, either during fabrication or try-in procedure, can suppress excessive stress that may be created in the tissues. With this procedure, however, the restoration does not contact the antagonistic tooth under a relatively low bite force.

Research Projects on Materials and Devices Published in 2007 by Members of the Japan Prosthodontic Society

“…15 Although several studies have conducted model analysis for stress distribution in the surrounding bone of implants, few experimental studies have analyzed the relation between occlusion and implant prosthesis. Maezawa et al 16 investigated the influence of the intensity of occlusal contact or occlusal height of an implantretained restoration on the stress in the crown surface and supporting bone. They created twodimentional finite element models: 1. the maxillary and mandibular first molars with supporting periodontal structures (Model-M-M).…”