不同粒度喷砂处理后饰面陶瓷与氧化锆的结合有效性
Bonding Effectiveness of Veneering Ceramic to Zirconia after Different Grit-Blasting Treatments.
作者信息
Zicari Francesca, Monaco Carlo, Vivan Cardoso Marcio, Silvestri Davide, Van Meerbeek Bart
机构信息
KU Leuven, Department of Oral Health Sciences, Biomaterials-BIOMAT & UZ Leuven, 3000 Leuven, Belgium.
University of Modena and Reggio Emilia, Department of Surgery, Medical, Dentistry and Morphological Sciences with Transplant Interest, Oncology and Regenerative Medicine (CHIMOMO), 41121 Modena, Italy.
出版信息
Dent J (Basel). 2024 Jul 15;12(7):219. doi: 10.3390/dj12070219.
To determine the effect of grit-blasting before and after sintering on the surface roughness of zirconia and the micro-tensile bond strength of a pressable veneering ceramic to zirconia. Pre-sintered zirconia blocks (IPS e.max ZirCAD, Ivoclar) were divided into four test groups of three specimens each and a control group ('CTR'; no surface treatment). Pre-S-30, Pre-S-50, and Pre-S-110 were grit-blasted with 30-µm SiO-coated AlO, 50-µm AlO and 110-µm AlO particles, respectively, before sintering. Post-S-30 was grit-blasted with 30-µm SiO-coated AlO after sintering. For each treatment, the surface roughness was measured (Ra, Perthometer M4P, Mahr Perthen). After sintering the zirconia blocks, a liner was applied and a pressable ceramic (IPS e.max ZirPress, Ivoclar) was heat-pressed. Sixteen microbars were obtained from each block and submitted to micro-tensile bond-strength (µTBS) testing. Data were analyzed with one-way ANOVA. Any correlation between Ra and µTBS was evaluated (Sperman test). Grit-blasting before sintering with 110-µm AlO (Ra = 3.4 ± 0.4 µm), 50-µm AlO (Ra = 2.3 ± 0.5 µm), and 30-µm SiO-coated AlO (Ra = 1.2 ± 0.2 µm) resulted in significantly higher roughness than grit-blasting after sintering with 30-µm SiO-coated AlO (Ra = 0.5 ± 0.1 µm). The highest µTBS was measured when the sintered zirconia was grit-blasted with 30-μm SiO-coated AlO (µTBS = 28.5 ± 12.6 MPa), which was significantly different from that of specimens that were grit-blasted before sintering (µTBS = 21.8 ± 10.4; µTBS = 24.1 ± 12.6; µTBS = 26.4 ± 14.1) or were not grit-blasted (µTBS = 20.2 ± 11.2). Grit-blasting zirconia before sintering enhanced the surface roughness proportionally to the particle size of the sand used. Grit-blasting with 30-µm SiO-coated AlO after sintering improved bonding of the veneering ceramic to zirconia. : As grit-blasting with 30-µm SiO-coated AlO after sintering improved bonding of the veneering ceramic to zirconia, it may reduce veneering ceramic fractures/chipping.
为了确定烧结前后喷砂处理对氧化锆表面粗糙度以及可压制成型的饰面陶瓷与氧化锆之间微拉伸粘结强度的影响。将预烧结的氧化锆块（义获嘉e.max ZirCAD，义获嘉公司）分成四个测试组，每组三个样本，以及一个对照组（“CTR”；未进行表面处理）。Pre-S-30、Pre-S-50和Pre-S-110分别在烧结前用30 µm SiO包覆的AlO、50 µm AlO和110 µm AlO颗粒进行喷砂处理。Post-S-30在烧结后用30 µm SiO包覆的AlO进行喷砂处理。对于每种处理，测量表面粗糙度（Ra，M4P表面粗糙度仪，马尔·珀申公司）。在烧结氧化锆块后，施加一层衬层，然后热压可压制成型的陶瓷（义获嘉e.max ZirPress，义获嘉公司）。从每个块体中获得16个微条，并进行微拉伸粘结强度（µTBS）测试。数据采用单因素方差分析进行分析。评估Ra与µTBS之间的任何相关性（斯皮尔曼检验）。烧结前用110 µm AlO（Ra = 3.4 ± 0.4 µm）、50 µm AlO（Ra = 2.3 ± 0.5 µm）和30 µm SiO包覆的AlO（Ra = 1.2 ± 0.2 µm）进行喷砂处理，其粗糙度显著高于烧结后用30 µm SiO包覆的AlO进行喷砂处理（Ra = 0.5 ± 0.1 µm）。当烧结后的氧化锆用30 µm SiO包覆的AlO进行喷砂处理时，测得的µTBS最高（µTBS = 28.5 ± 12.6 MPa），这与烧结前进行喷砂处理的样本（µTBS = 21.8 ± 10.4；µTBS = 24.1 ± 12.6；µTBS = 26.4 ± 14.1）或未进行喷砂处理的样本（µTBS = 20.2 ± 11.2）有显著差异。烧结前对氧化锆进行喷砂处理可使表面粗糙度与所用砂粒的粒径成比例增加。烧结后用30 µm SiO包覆的AlO进行喷砂处理可改善饰面陶瓷与氧化锆之间的粘结。：由于烧结后用30 µm SiO包覆的AlO进行喷砂处理可改善饰面陶瓷与氧化锆之间的粘结，因此它可能减少饰面陶瓷的断裂/剥落。
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