The wear of dental porcelain in an artificial mouth |
| |
| Authors: | R DeLong W H Douglas R L Sakaguchi M R Pintado |
| |
| Affiliation: | 1. Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, PO Box 56, Dunedin 9054, New Zealand;2. Faculty of Dentistry, Jordan University of Science and Technology, PO Box 3030, Irbid 22110, Jordan;1. Postgraduate student, Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil;2. Postdoctoral student, Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil;3. Engineer, Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam; and Vrije University Amsterdam, Amsterdam, The Netherlands;4. Professor, Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam; and Vrije University Amsterdam, Amsterdam, The Netherlands;5. Associate Professor, Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil;1. Department of Prosthodontics, Dental School, Ludwig-Maximilians-Universität München, Goethestraße 70, 80336 Munich, Germany;2. Clinic of Preventive Dentistry, Periodontology and Cariology, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland;1. Centro de Química Estrutural (CQE), Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal;2. Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Universitário Egas Moniz, Monte da Caparica, Portugal;3. Instituto de Engenharia Mecânica (IDMEC), Departamento de Engenharia Mecânica, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal;4. Centro de Física e Engenharia de Materiais Avançados (CeFEMA), Instituto Superior Técnico, Lisboa, Portugal;5. Escola de Tecnologia de Setúbal, Instituto Politécnico de Setúbal, Setúbal, Portugal;1. Centre of Clinical Oral and Translational Sciences, King’s College London Dental Institute, UK;2. Department of Restorative Dentistry, School of Dentistry, University of Leeds, UK;3. Department of Medical Biotechnologies, University of Siena, Siena, Italy;1. Division of Biomaterials, University of Alabama at Birmingham School of Dentistry, Birmingham, AL, USA;2. Indiana University School of Dentistry, Indianapolis, IN, USA |
| |
| Abstract: | Simulated occlusal wear studies in an artificial mouth involving enamel occluding on porcelain demonstrated a high coefficient of wear for dental porcelain; in agreement with other workers, an abrasive wear process is postulated. Volume loss due to wear showed good linearity as a function of the number of masticatory cycles with slight flattening at higher masticatory levels. However, the depth of wear curve showed a pronounced deviation from linearity with flattening of the wear rate with time. A parabolic relation exists between volume and depth of wear and correspondingly between time and depth. Based on the coefficient of wear, the intrinsic wear of porcelain appears to be about one order of magnitude greater than that experienced by dental amalgam. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
