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  • In situ tooth replica custom implant: a 3-dimensional finite element stress and strain analysis.

In situ tooth replica custom implant: a 3-dimensional finite element stress and strain analysis.

The Journal of oral implantology (2011-07-20)
Wael Aly Ghuneim
초록

This study is a phase of a biomechanical study, a part of a research program concerned with the new concept of in situ tooth replication. The purpose of the study was to evaluate tooth replica under each of two possible circumstances: (1) attachment via periodontal ligament and (2) osseointegration. Replicas were made of Cortoss, a bioactive glass, bone substitute. Three-dimensional finite element analysis was used to assess the stresses and strains resulting from each of 2 types of loads: off-vertical pressure and vertical point force acting on natural mandibular second premolar and corresponding replicas. Natural tooth tolerated 19 MPa pressure or 85 N vertical force, periodontally attached replica tolerated 15 MPa pressure or 80 N force, and osseointegrated replica tolerated 23 MPa pressure or 217 N force.

MATERIALS
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Sigma-Aldrich
Bisphenol A glycerolate dimethacrylate, glycerol/phenol 1