The effect of microthread design on magnitude and distribution of stresses in bone: A three.dimensional finite element analysis

• Published in: Dental research journal Vol. 15; no. 5; pp. 347 - 353
• Main Authors: Golmohammadi, Shima, Eskandari, Amir, Movahhedy, Mohammad Reza, Shirmohammadi, Adileh, Amid, Reza
• Format: Journal Article
• Language: English
• Published: Tehran Medknow Publications & Media Pvt. Ltd 01.09.2018
• Subjects: Biomechanics; Dental implants; Finite element analysis; Titanium alloys; Transplants & implants
• ISSN: 1735-3327; 2008-0255

Key Words: Bone, dental implant-abutment design, finite element analysis, mechanical, stress INTRODUCTION Marginal bone loss after dental implant placement is observed in many implant systems and after different surgical approaches.111 It usually begins at the neck of the implant and spreads to the first thread of the body or the first contact between the bone and the rough surface of the implant. [27] Due to the simplifications made throughout the process of analysis, it only gives a general concept of stress variations under certain conditions, without resembling individual clinical situations. [...]it is better to focus on qualitative comparison of stress distribution pattern rather than quantitative data. [...]although different studies have modeled various commercial implant systems with inherently dissimilar designs, the results of all these researches are accounted as the performance of microthreads. According to the results of our study, it appears that correlation between the length of the neck incorporating coarse microthreads and the magnitude of stresses in cortical bone does not follow a similar pattern under both loading conditions.