Micromovement Evaluation of Original and Compatible Abutments at the Implant-abutment Interface.

Introduction: Use of compatible abutments may increase micromovements between the abutments, and the inner part of the implant may increase the stress on marginal bone level. Also micromovement will change the volume of the inner space of the implant-abutment complex. The resulting pumping effect can transport even initially immobile microorganisms from the exterior to the interior and vice versa.

Evaluation of rotational freedom of In-Ceram ceramic blank abutments before and after infiltration.

Purpose: Laboratory processing of implant-supported prostheses may alter the surface of the abutment in contact with the corresponding surface and thus the interface fit. This study assessed changes in the rotational freedom (R) at the interface of 1 implant ceramic abutments before and after preparation and glass infiltration processes.

Materials And Methods: The abutment R was assessed for 20 as-received In-Ceram Ceramic Blanks over synOcta abutments and after both preparation and infiltration procedures.

Fracture resistance and failure location of zirconium and metallic implant abutments.

Aim: The purpose of this study was to evaluate the fracture resistance and failure location of single-tooth, implant-supported, all-ceramic restorations on different implant abutments subjected to a maximum load.

Methods And Materials: Forty Certain 3i implants and 20 ITI Straumann implants were used in this study in combination with 20 UCLA abutments, 20 ZiReal abutments, and 20 synOcta Ceramic Blanks to form three groups according to abutment type. All 60 abutments were prepared with standard measurements: a 1.