fa Biomechanical validation of an artificial tooth–periodontal ligament–bone complex for in vitro orthodontic load measurement ارتودنسی Orthodontics پژوهشي Research <p> <strong>Objectives:</strong>   </p><p> To develop an artificial tooth–periodontal ligament (PDL)–bone complex (ATPBC) that simulates clinical crown displacement. </p><p> <strong>Material and Methods: </strong>  </p><p> An ATPBC was created. It had a socket hosting a tooth with a thin layer of silicon mixture in between for simulating the PDL. The complex was attached to a device that allows applying a controlled force to the crown and measuring the resulting crown displacement. Crown displacements were compared to previously published data for validation. </p><p> <strong>Results:</strong>   </p><p> The ATPBC that had a PDL made of two types of silicones, 50% gasket sealant No. 2 and 50% RTV 587 silicone, with a thickness of 0.3 mm, simulated the PDL well. The mechanical behaviors (1) force-displacement relationship, (2) stress relaxation, (3) creep, and (4) hysteresis were validated by the published results. </p><p> <strong>Conclusion:</strong>   </p><p> The ATPBC simulated the crown displacement behavior reported from biological studies well. </p><hr><p></p><p> <strong>Source: </strong>The Angel Orthodontists</p><p> <a href="http://www.angle.org/doi/abs/10.2319/041712-317.1" target="_blank"><font color="#0000ff">Full Text</font></a></p> Periodontal ligament (PDL), Sliding mechanics, Mechanical property, Force and displacement 0 0 http://idai.ir/browse.php?a_code=A-10-32-1961&slc_lang=fa&sid=1 Zeyang Xia 10031947532846009206 10031947532846009206 No Department of Mechanical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, Ind Jie Chen jchen3@iupui.edu 10031947532846009207 10031947532846009207 Yes Department of Mechanical Engineering and Department of Orthodontics and Oral Facial Genetics, Indiana University Purdue University Indianapolis, Indianapolis, Ind