Biomechanical behaviour of tooth-supported fixed partial dentures by 3D FEA.

This three-dimensional finite element analysis first described stresses distribution in loaded posterior fixed partial dentures, then compared the influences of bone height, abutment roots number and pontic length on their displacements. Twelve mandibular (three to five unit) FDPs integrating periodontal ligaments were designed. Stresses were localized in connectors and cervical areas of abutments near the edentulous span.

Influence of implant length and bicortical anchorage on implant stress distribution.

Background: Short implants present superior failure rates for everybody.

Purpose: The aim of this theoretic study was to assess to what extent implant length and bicortical anchorage affect the way stress is transferred to implant components, the implant proper, and the surrounding bone.

Materials And Methods: Stress analysis was performed using finite element analysis.

Corono-radicular reconstruction of pulpless teeth: a mechanical study using finite element analysis.

Statement Of Problem: Following endodontic therapy, teeth need to be protected, particularly in the cervical region, where the majority of fractures occur. The likelihood of a fracture depends on the condition of the crown and the type of reconstruction performed.

Purpose: This simulation study was designed to compare the effect of different corono-radicular reconstruction methods on stress transmission to dental tissues.

Two dental implants designed for immediate loading: a finite element analysis.

Purpose: The aim of this study was to evaluate by finite element analysis the influence of the design of 3 different dental implants on micromovements, cervical shearing stress intensity, and stress distribution after occlusal loading.

Materials And Methods: The first investigated implant was a classical cylinder, the second was reinforced by 2 bicortical locking pins, and the third was an expanding dental implant. The parameters analyzed were the implant's geometry, the quality of the cancellous bone, and the orientation of occlusal loading.