Numerical study of effect of elastomeric stress absorbers on stress reduction in bone-dental implant interface

Objective: this paper focused on optimal stress distribution in the mandibular bone surrounding a dental implant and is devoted to the development of a modified osteoplant® implant type in order to minimize stress concentration in the bone-implant interface. material and methods: this study investigated 0.4 mm thick layers of two elastomeric stress barriers incorporated into the dental implant using 3-d finite element analysis. results: overall,this proposed implant provoked lower load transfer in boneimplant interface due to the effect of the elastomers as stress absorbers. the stress level in the bone was reduced between 28% and 42% for three load cases: 75 n,60 n and 27 n in corono-apical,linguo-buccal and disto-mesial direction,respectively. conclusion: the proposed model provided an acceptable solution for load transfer reduction to the mandible. this investigation also permitted to choose how to incorporate two elastomers into the osteoplant® implant system. © 2015,j appl oral sci. all rights reserved.