Evaluation of the effects produced by different insertion torques on the internal surface of the neck of different implants systems

A synthetic material block for biomechanical tests with features of type I mandibular bone was used for this study. Fifteen implants of three different systems were used: AstratechTM, GTMedical and Straumann Tissue level®. All the implants were

1 INTRODUCTION

The rehabilitation of total or partial edentulous spaces using dental implants has become a well docummented and a scientifically accepted solution by the research community [1]. The bibliography recommends that the implant insertion torque varies between 30 Ncm to 50 Ncm [2]. However, different situations may compel to exceed those values. Knowing that the implant-abutment interface represents a crucial factor for the prosthesis structural stability maintenance, the lack of stability can affect the survival and long-term

sealed in the original package, and were opened only for the recording of the photographs of the implants’ interior.