Tensile bond strength between tooth-colored porcelain and sandblasted zirconia framework |
| |
| Authors: | Takashi Nakamura Kazumichi Wakabayashi Chiaki Zaima Hisataka Nishida Soichiro Kinuta Hirofumi Yatani |
| |
| Institution: | 1. Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan;2. Department of Operative Dentistry, Osaka Dental University, Osaka, Japan;1. Doctoral student, School of Mechanical Engineering, Shandong University, Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education), Jinan, P.R. China;2. Professor, School of Mechanical Engineering, Shandong University, Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education), Jinan, P.R. China;3. Chief Physician, Department of Prosthodontics, Qilu Hospital of Shandong University, Jinan, P.R. China;4. Resident, Department of Prosthodontics, Qilu Hospital of Shandong University, Jinan, P.R. China;1. Doctoral student, Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil;2. Professor, Department of Biomaterials and Oral Biology, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil;3. Professor, Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil;4. Professor, Department of Physics, Faculty of Science, São Paulo State University, Bauru, SP, Brazil;5. Graduate student, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil;6. Professor, Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil;1. Assistant Professor, Department of Oral Rehabilitation, Dental College of Georgia at Augusta University, Augusta, Ga;2. Associate Professor and Director, Graduate Prosthodontics, Department of Prosthodontics, Louisiana State University, School of Dentistry, New Orleans, La;3. Professor and Section Director, Dental Materials, Department of Oral Rehabilitation, Dental College of Georgia at Augusta University, Augusta, Ga;4. Associate Professor, Department of Prosthodontics, Louisiana State University, School of Dentistry, New Orleans, La;1. Dental Biomaterials Department, Faculty of Dentistry, Alexandria University, Egypt;2. Prosthodontic Unit, State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, China |
| |
| Abstract: | PurposeThe purpose of this study was to examine the bond strength between tooth-colored porcelain and sandblasted zirconia framework.MethodsThe surfaces of zirconia specimens that had been cut into a size suitable for a bending test were sandblasted at three different pressures (0.2, 0.4 and 0.6 MPa). The surface roughness of each specimen was measured and then a 3-point bending test was performed. After that, other zirconia specimens simulating a crown framework were fabricated and their surfaces were sandblasted. Three types of tooth-colored porcelain were fired onto the surface of those zirconia specimens, and the tensile bond strength between the two substances was examined.ResultsWhen the sandblasting pressure was increased, the surface roughness of zirconia specimens tended to become, but the flexural strength remained unchanged. The specimens simulating a zirconia framework had a higher strength of bond when sandblasted at 0.4 or 0.6 MPa than when blasted at 0.2 MPa. The zirconia specimens sandblasted at a pressure of 0.4 MPa had a bond strength to tooth-colored porcelain of 37.7–49.5 MPa.ConclusionWhen sandblasted at a pressure of 0.4 MPa, the zirconia specimens developed a strong bond with the tooth-colored porcelain, regardless of the type of porcelain. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
