Enhancement of biomechanical behavior on osseointegration of implant with SLAffinity

Authors

  • Kuo-Tien Chu,

    1. Department of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
    2. Division of Prosthodontics, Department of Dentistry, Taipei Medical University Hospital, Taipei 110, Taiwan
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  • Han-Yi Cheng,

    1. Department of Mechanical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan
    2. Research Center for Biomedical Devices and Prototyping Production, Taipei Medical University, Taipei 110, Taiwan
    3. Research Center for Biomedical Implants and Microsurgery Devices, Taipei Medical University, Taipei 110, Taiwan
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    • Co-first author.

  • Yung-Ning Pan,

    1. Department of Mechanical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan
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  • Shyuan-Yow Chen,

    Corresponding author
    1. Department of Dentistry, Cathay General Hospital, Sijhih, Taipei 221, Taiwan
    2. Department of Dentistry, Cathy General Hospital, Taipei 106, Taiwan
    3. Department of Dentistry, College of Oral Medicine, Taipei Medical University
    • Department of Dentistry, Cathay General Hospital, Sijhih, Taipei 221, Taiwan
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  • Keng-Liang Ou

    Corresponding author
    1. Research Center for Biomedical Devices and Prototyping Production, Taipei Medical University, Taipei 110, Taiwan
    2. Research Center for Biomedical Implants and Microsurgery Devices, Taipei Medical University, Taipei 110, Taiwan
    3. Graduate Institute of Biomedical Materials and Tissue Engineering, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
    • Research Center for Biomedical Devices and Prototyping Production, Taipei Medical University, Taipei 110, Taiwan
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  • How to cite this article: Chu K-T, Cheng H-Y, Pan Y-N, Chen S-Y, Ou K-L. 2013. Enhancement of biomechanical behavior on osseointegration of implant with SLAffinity. J Biomed Mater Res Part A 2013:101A:1195–1200.

Abstract

The purpose of this study was to investigate stresses resulting from different thicknesses of hydroxyapatite- and titanium dioxide (TiO2)-treated layers at the interface between temporomandibular joint (TMJ) implants and bones using three-dimensional finite element models. For ensuring osseointegration of implant treatment, one must examine the stresses of interface between implant and bone tissue. Treated layers on TMJ implants are a very important factor in clinical application. Several studies have investigated finite element models for TMJs, but few have examined a model for TMJ implants with treated layers. In this study, TMJ models were reconstructed using computer tomography data, and the effects of treated layer thickness on the stress field during jaw movement were investigated; this index has not yet been reported with respect to TMJ implant. The maximum stresses in the bone occurred at the position of the first screw. Data analysis indicated a greater decrease in this stress in the case of using TMJ implants with TiO2-treated layers, and the stresses decreased with increasing layer thicknesses. Results confirmed that the treated layers improve biomechanical properties of the TMJ implants and release abnormal stress concentration in them. The results of our study offer the potential clinical benefit of inducing superior biomechanical behavior in TMJ implants. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A, 2013.

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