Er,Cr:YSGG laser irradiation influence on Y-TZP bond strength to resin cement |
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| Affiliation: | 1. Graduate Studies Division, Department of Restorative Dentistry, School of Dentistry, State University of Feira de Santana, Bahia, Brazil;2. Department of Restorative Dentistry, School of Dentistry, Guarulhos University, Guarulhos, Brazil;3. Private office at São Paulo, Brazil;4. Dental Research and Graduate Studies Division, Department of Restorative Dentistry, School of Dentistry, Guarulhos University, Guarulhos, Brazil;1. Research Center for Eco Multi-Functional Nano Material, Sun Moon University, Chungnam 336-708, Republic of Korea;2. Centro de Investigaciones en Optica, A.P. 1-948, Leon, Gto. 37150, Mexico;1. Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, MS, United States;2. Post-graduate Program in Dentistry, University of Passo Fundo, Passo Fundo, Brazil;3. Ivoclar-Vivadent, Inc., Amherst, NY, United States;1. University POLITEHNICA of Bucharest, RO-011061 Bucharest, Romania;2. National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele, Romania;1. Department of Physiology, Tokyo Medical University, Tokyo 160-8402, Japan;1. Institute of Oral Science, Chung Shan Medical University, Taichung 402, Taiwan, ROC;2. Department of Dentistry, Chung Shan Medical University Hospital, Chung Shan Medical University, Taichung 402, Taiwan, ROC;3. Institute for Nuclear Research, Hungarian Academy of Sciences, Bem tér 18/C, H-4026 Debrecen, Hungary;4. Department of Dental Technology, Shu Zen Junior College of Medicine and Management, Kaohsiung City 82144, Taiwan, ROC |
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| Abstract: | The aim of this study was to evaluate Y-TZP surface pretreatment with different protocols on microshear bond strength (μSBS) ceramic-cement interface. One hundred and sixty pre-sintered IPS e-max ZirCAD (Ivoclar-Vivadent) blocks were randomly divided into sixteen groups according to surface treatment (n=20): G1- no treatment (control); G2- ceramic primer; G3- tribochemical silica coating; G4- tribochemical silica coating+primer; G5- airborne particle abrasion (Al2O3); G6- airborne particle abrasion (Al2O3)+primer; G7- Er,Cr:YSGG laser; G8- Er,Cr:YSGG laser+primer. All specimens were sintered before surface treatment, except lasers groups, which were sintered after laser irradiation. Ceramic blocks were bonded with Panavia F resin cement (Kuraray, Okayama, Japan) (n=10) or RelyX ARC (3M ESPE, St. Paul, MN, USA) (n=10). The μSBS tests were carried out in a universal testing machine at a speed of 1mm/min after 24 h (n=5) or 6 months storage (n=5). Differences were found for both resin cements and storage conditions in relation to μSBS values (p<0.05). However, no significant difference for interaction between factors was observed in cemented blocks with RelyX ARC. Panavia F resin cement showed significant differences for interaction between factors (p<0.05). Laser treatment was not sufficient to increase μSBS values between Y-TZP and resin cements. Tribochemical silica coating followed by primer achieved the highest immediate μSBS values. The storage did not affect negatively μSBS values to both evaluated cements. |
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| Keywords: | Zirconia Bond strength Er Cr:YSGG laser |
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