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

• Published in: Biodental Engineering III : Proceedings of the 3rd International Conference on Biodental Engineering (BIODENTAL 2014) pp. 295 - 299
• Main Authors: Ferreira, M, Pinho, M Morado, Manso, M C, Almeida, R Faria, Vaz, M A, Mesquita, P
• Format: Conference Proceeding
• Language: English
• Published: Boca Raton Taylor & Francis Books Ltd 01.01.2014
• Subjects: Bibliographic literature; Biomechanics; Dental prosthetics; Dental restorative materials; Dentistry; Neck; Prostheses; Rehabilitation; Transplants & implants
• ISBN: 9781138026711; 1138026719
• DOI: 10.1201/b17071-56

Introduction: The rehabilitation of total or partial edentulous spaces using dental implants has become a well documented solution and scientifically accepted 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. This study aims to compare and quantify the damage caused in the lap of dental implants, according to different systems and insertion torques. Material and methods: Fifteen implants from Astratech™, GTMedical and Straumann Tissue level® systems were used. The internal part of the neck of the implants was analyzed and photographed with an optical microscope. The implants were placed in a sawbones polymeric block, as follows: 5 implants with 30 Ncm insertion After the placement, its internal part was, again, analyzed using the same optical microscope. Results: Astratech™ implants presented the greatest distortion on its internal structure. Concerning the insertion torque we observed that higher insertion torques (>50 Ncm) the distortion, greatly increases. Conclusion: Implants placed with an insertion torque of 30 Ncm don't show a significant deformation. Implants placed with a torque higher than 30 Ncm show deformation in different degrees of severity.