Finite element contact analysis as a critical technique in dental biomechanics: A review |
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| Affiliation: | 1. Institute of Solid Mechanics, Mechatronics and Biomechanics, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 616 69 Brno, Czech Republic;2. X-ray Micro CT and Nano CT Research Group, CEITEC – BUT, Brno University of Technology, Technická 2896/2, 616 69 Brno, Czech Republic;3. Oral and Maxillofacial Unit, Department of Otorhinolaryngology, Tampere University Hospital, FI-33521, Tampere, Finland;4. Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, The Netherlands;1. Division of Biomechanics, Department of Mechanical Engineering, Sahand University of Technology, Tabriz, Iran;2. The University of Sheffield, Academic Unit of Restorative Dentistry, The School of Clinical Dentistry, Claremont Crescent, Sheffield, UK;3. Tabriz University of Medical Sciences, Tabriz Dental School, Orthodontic Department, Tabriz, Iran;1. Mechanical Engineering Department, SRM Institute of Science and Technology, Chennai, 603203, India;2. Faculty of Sciences & Technology, University Mustapha Stambouli of Mascara, Algeria;3. Medical Engineering Research Group, Faculty of Science and Technology, Anglia Ruskin, University, Bishop Hall Lane, Chelmsford, Essex, CM1 1SQ, UK;4. Department of Mechanical Engineering, JIS College of Engineering, Kalyani, Nadia, 741235, India |
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| Abstract: | PurposeNonlinear finite element contact analysis is used to mathematically estimate stress and strain in a time- and status-dependent mechanical model. However, the benefits and limitations of this method have not been thoroughly examined.Study selectionThe current review summarizes the utility of contact analysis in characterizing individual stressors: (1) tooth-to-tooth contact, (2) restorative interface, and (3) bone–implant integration.ResultsOpposing tooth contact, friction, and sliding phenomena were simulated to estimate stress distribution and assess the failure risk for tooth enamel, composite, and ceramic restorations. Mechanical tests such as the flexural tests were simulated with the contact analysis to determine the rationale underlying experimental findings. The tooth–restoration complex was modeled with interface contact elements that simulate imperfect bonding, and the normal and tangential stresses were calculated to predict failure progression. Previous studies have used a friction coefficient to represent osseointegration adjacent to dental implants, but the relationship between interface friction and the bone quality is unknown. An understanding of the local stress and strain may better predict loss of osseointegration, however, the effective stress as a critical contributor to bone degradation and formation has not been established.ConclusionsContact analysis provides numerous benefits for dental and oral health sciences, however, a fundamental understanding and improved methodology are necessary. |
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| Keywords: | Finite element analysis Stress Dental Implant Nonlinear |
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