Wear of resin denture teeth in partial removable dental prostheses |
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| Institution: | 1. Department of Prosthodontics, Heidelberg University Hospital, Heidelberg, Germany;2. Institute of Medical Biometry and Informatics, Heidelberg University Hospital, Heidelberg, Germany;1. University of Groningen, University Medical Center Groningen, Department of Oral and Maxillofacial Surgery, Groningen, The Netherlands;2. University of Groningen, University Medical Center Groningen, Dental School, Department of Implant Dentistry, Groningen, The Netherlands;1. Department of Clinical and Experimental Medicine, School of Dentistry, University of Foggia, Foggia, Italy;2. Sintesi Sud Srl, Ariano Irpino, AV, Italy;3. Salus Oris Srl, Vallesaccarda, AV, Italy;1. Department of Restorative Dentistry, School of Dentistry, University of Leeds, Leeds, United Kingdom;2. Department of Medical Biotechnologies, University of Siena, Siena, Italy;3. School of Dentistry, University of Leeds, Leeds, United Kingdom;4. Department of Prosthodontics, School of Dental Medicine, University of Catania, Catania, Italy;5. Department of Prosthodontics & Dental Materials, School of Dental Medicine, University of Siena, Siena, Italy;6. Dental Trial Clinical Research Unit [DenTCRU], School of Dentistry, University of Leeds, Leeds, United Kingdom;1. Center for Advanced Research in Sleep Medicine (CARSM), Dept. of Surgery, Hôpital du Sacré-Coeur de Montréal, Montréal, Canada;2. Faculty of Dental Medicine, Université de Montréal, Pavillon Roger-Gaudry, Montréal, Canada;3. Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan;4. Department of Medicine, Pulmonology and Sleep Clinic, Centre Hospitalier de l’Université de Montréal, Montréal, Canada;5. Department of Oral Physiology, Osaka University Graduate School of Dentistry, Suita, Japan;6. Department of Stomatology, Centre Hospitalier de l’Université de Montréal, Montréal, Canada;1. The Japan Denture Care Society, Japan;2. Department of Oral and Maxillofacial Prosthodontics, Field of Oral and Maxillofacial Rehabilitation, Course for Advanced Therapeutics, Kagoshima University Graduate School of Medical and Dental Sciences, Sakuragaoka 8-35-1, Kagoshima 890-8544, Japan;3. Department of Prosthodontics and Oral Implantology, School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka 020-8505, Japan;4. Denture Prosthodontic Restoration, Advanced Dentistry Center, Kagoshima University Medical and Dental Hospital, Sakuragaoka 8-35-1, Kagoshima 890-8544, Japan;5. Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-nishi, Matsudo, Chiba 271-8587, Japan;6. Division of Aging and Geriatric Dentistry, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan;7. Division of Community Oral Health Science, Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8573, Japan;8. Liaison Center for Innovative Dentistry, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan;9. Department of Removable Prosthodontics, Nihon University Graduate School of Dentistry at Matsudo, 2-870-1 Sakaecho-nishi, Matsudo, Chiba 271-8587, Japan;10. Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan;11. Section of Oral Prosthetic Engineering, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan;12. Division of Prosthodontics & Oral Implantology, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka, Kanagawa 238-8580, Japan;13. Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Kanagawa 230-8501, Japan;14. Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 1-5-17 Otemae, Chuo-ku, Osaka 540-0008, Japan;15. Department of Oral and Maxillofacial Prosthodontics, Graduate School of Biomedical Sciences, Tokushima University, 3-18-15 Kuramoto, Tokushima 770-8504, Japan;p. Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan;q. Tsurumi University School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Kanagawa 230-8501, Japan;r. Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, Hiroshima 734-8553, Japan |
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| Abstract: | PurposeTo investigate occlusal wear of resin denture teeth in partial removable dental prostheses worn by partially edentulous patients.MethodsThirty patients with partial removable dental prostheses were included in the study. Thirty-two patients with complete dentures served as a reference group. Occlusal wear after two years was evaluated indirectly using gypsum casts and a three-dimensional laser-scanner device. Overall wear of complete occlusal surfaces and maximum wear of occlusal contact areas were measured. Patient and prosthesis data were analyzed using univariate and multiple linear mixed models.ResultsOverall wear of denture teeth in partial removable dental prostheses was 91 (SD 85) μm, and maximum wear of occlusal contact areas was 329 (SD 204) μm (means and standard deviations). Average and maximum wear values for teeth in complete dentures were both lower than those for teeth in partial removable dental prostheses. However, differences between wear of different types of denture did not reach statistical significance after adjustment for gender, type of tooth, dental status of the opposing jaw, and antagonist material. Statistical analysis revealed that wear was greater for denture teeth occluding with ceramic crowns and/or fixed partial dentures as antagonists.ConclusionsResin denture teeth in partial removable and complete dental prostheses are subjected to clinically important occlusal wear that might destabilize occlusion and cause further problems. Patient-related factors and dental status affect wear behavior and should be taken into consideration when treating patients with removable dentures. |
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| Keywords: | Wear Occlusal wear Denture teeth Removable dental prosthesis Complete dental prosthesis |
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