Predicting bone remodeling around tissue- and bone-level dental implants used in reduced bone width |
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Authors: | Atilim Eser Ergin Tonuk Kivanc Akca Michel M Dard Murat Cavit Cehreli |
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Institution: | 1. Institute for Materials Applications in Mechanical Engineering, RWTH-Aachen University, Aachen, Germany;2. Mechanical Engineering Department, Faculty of Engineering, Middle East Technical University, Ankara, Turkey;3. Biomedical Engineering Graduate Program, Institute of Natural and Applied Sciences, Middle East Technical University, Ankara, Turkey;4. Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, 06100 S?hhiye, Ankara, Turkey;5. Department of Periodontology and Implant Dentistry, New York University, College of Dentistry, NY, USA;6. Department of Prosthodontics, Faculty of Dentistry, Ordu University, 52100 Ordu, Turkey |
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Abstract: | The objective of this study was to predict time-dependent bone remodeling around tissue- and bone-level dental implants used in patients with reduced bone width. The remodeling of bone around titanium tissue-level, and titanium and titanium–zirconium alloy bone-level implants was studied under 100 N oblique load for one month by implementing the Stanford theory into three-dimensional finite element models. Maximum principal stress, minimum principal stress, and strain energy density in peri-implant bone and displacement in x- and y- axes of the implant were evaluated. Maximum and minimum principal stresses around tissue-level implant were higher than bone-level implants and both bone-level implants experienced comparable stresses. Total strain energy density in bone around titanium implants slightly decreased during the first two weeks of loading followed by a recovery, and the titanium–zirconium implant showed minor changes in the axial plane. Total strain energy density changes in the loading and contralateral sides were higher in tissue-level implant than other implants in the cortical bone at the horizontal plane. The displacement values of the implants were almost constant over time. Tissue-level implants were associated with higher stresses than bone-level implants. The time-dependent biomechanical outcome of titanium–zirconium alloy bone-level implant was comparable to the titanium implant. |
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Keywords: | Dental implant Titanium Titanium zirconium alloy Bone remodelling Finite element analysis |
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