Reexamination of Implant Occlusion

Abstract

Implant dentistry is regarded as a successful dental treatment that restores superior functions and esthetics to the previous oral condition. On the other hand, implant occlusion needs careful consideration because of fundamental differences in placement status and surrounding tissue structure between natural teeth and implants. However, there has never been an optimal solution since “Implant-Protected Occlusion” proposed by Dr. CE MISCH. This article explores the transition of ideas about implant occlusion and the consensus at present.

Implant prostheses are basically one of the elements that constitute the stomatognathic system. In that sense, there is no difference in the goal of occlusion between dentition with or without implant prostheses. However, when there are large differences of displaceability and sensory acceptability on both sides, the occlusal contact relationship should be taken into careful consideration. The procedures described in “Implant-Protected Occlusion” take care to avoid stress concentration on implants. Subsequent clinical evidence has revealed the unexpectedly excellent load-bearing ability of implants. Such evidence suggests that overprotection of implants should be avoided except in cases of bruxism. Moreover, occlusal adjustment tailored to antagonist teeth was proposed in a position paper by the Japan Prosthodontic Society. A comprehensive consideration of implant occlusion should be kept in mind.