铒铬：钇-钪-镓石榴石激光在摩擦硅烷化前后的不同功率设置对氧化锆与两种类型粘结剂之间微剪切粘结强度的影响。
Effect of different power settings of Er,Cr:YSGG laser before or after tribosilicatization on the microshear bond strength between zirconia and two types of cements.
作者信息
Zeidan Leonardo C, Esteves Camila M, Oliveira Juliana A, Brugnera Aldo, Cassoni Alessandra, Rodrigues José Augusto
机构信息
Department of Restorative Dentistry, School of Dentistry, Guarulhos University, Pós Graduação em Odontologia, Praça Teresa Cristina, 229 Centro, Guarulhos, SP, CEP 07023-070, Brazil.
Camilo Castelo Branco University, Fernandópolis, Brazil.
出版信息
Lasers Med Sci. 2018 Feb;33(2):233-240. doi: 10.1007/s10103-017-2343-2. Epub 2017 Oct 27.
The aim of this study was to evaluate the effect of different output powers of Er,Cr:YSGG laser and the association with tribochemical silica coating on the bond strength between zirconia ceramic and two resin cements. One hundred ninety-two zirconia ceramic bars (IPS e-max ZirCAD Ivoclar Vivadent-) were sectioned (6 × 6 × 4 mm), sintered, and randomly divided into 12 groups for each cement system according to the surface treatment (n = 8): C-without treatment (control); R-tribochemical coating + resin cement (control); 2L-laser (2.0 W) + resin cement; 2LR-laser (2.0 W) + tribochemical coating + resin cement; R2L-tribochemical coating + laser (2.0 W) + resin cement; 2.5L-laser (2.5 W) + resin cement; 2.5LR-laser (2.5 W) + tribochemical coating + resin cement; R2.5L-tribochemical coating + laser (2.5 W) + resin cement; 3L-laser (3.0 W) + resin cement; 3LR-laser (3.0 W) + tribochemical coating + resin cement, R3L-tribochemical coating + laser (3.0 W) + resin cement; and RPHO-tribochemical + resin cement + photoactivation (control). After the surface treatment, the respective primers were applied, and resin cements, Multilink N, Ivoclar Vivadent (M), and Panavia F 2.0, Kuraray Medical Inc. (P), were inserted into Tygon molds which were bonded to the zirconia bars. Each specimen received two cements bars. After 24 h of storage in a relative humidity (100%) at 37 °C, they were evaluated by the microshear test speed of 1 mm/min. The microshear values were analyzed by one-way ANOVA and Tukey's test (α = 0.05). ANOVA showed statistically significant differences among the evaluated groups. The highest bond strength was observed in RPHO, which statistically differed from all groups. The lowest bond strength was observed in M2.5L (Multilink N) and in P3LR (Panavia F 2.0). It can be concluded that the lowest power output tested was suitable and showed bond strength values similar to tribochemical silica deposition. The light curing is important to adhesion and the tribosilicatizated surface achieves similar microshear values to untreated surface in absence of light.
本研究的目的是评估铒铬
钇稳定氧化钆镓石榴石（Er,Cr:YSGG）激光的不同输出功率以及与摩擦化学二氧化硅涂层相结合对氧化锆陶瓷与两种树脂水门汀之间粘结强度的影响。将192根氧化锆陶瓷棒（义获嘉e-max ZirCAD，义获嘉威瓦登特公司）切割成（6×6×4毫米），烧结，并根据表面处理方式针对每种水门汀系统随机分为12组（每组n = 8）：C组——未处理（对照）；R组——摩擦化学涂层 + 树脂水门汀（对照）；2L组——激光（2.0瓦）+ 树脂水门汀；2LR组——激光（2.0瓦）+ 摩擦化学涂层 + 树脂水门汀；R2L组——摩擦化学涂层 + 激光（2.0瓦）+ 树脂水门汀；2.5L组——激光（2.5瓦）+ 树脂水门汀；2.5LR组——激光（2.5瓦）+ 摩擦化学涂层 + 树脂水门汀；R2.5L组——摩擦化学涂层 + 激光（2.5瓦）+ 树脂水门汀；3L组——激光（3.0瓦）+ 树脂水门汀；3LR组——激光（3.0瓦）+ 摩擦化学涂层 + 树脂水门汀；R3L组——摩擦化学涂层 + 激光（3.0瓦）+ 树脂水门汀；以及RPHO组——摩擦化学处理 + 树脂水门汀 + 光活化（对照）。表面处理后，施加相应的底漆，然后将树脂水门汀，义获嘉威瓦登特公司的Multilink N（M）和可乐丽医疗株式会社的Panavia F 2.0（P），插入粘结到氧化锆棒上的泰根模具中。每个样本接受两根水门汀棒。在37℃相对湿度100%的环境中储存24小时后，以1毫米/分钟的微剪切测试速度对其进行评估。微剪切值通过单因素方差分析和Tukey检验（α = 0.05）进行分析。方差分析显示评估组之间存在统计学上的显著差异。在RPHO组中观察到最高的粘结强度，该组与所有其他组在统计学上存在差异。在M2.5L（Multilink N）组和P3LR（Panavia F 2.0）组中观察到最低的粘结强度。可以得出结论，所测试的最低功率输出是合适的，并且显示出与摩擦化学二氧化硅沉积相似的粘结强度值。光固化对粘结很重要，并且在无光的情况下，经摩擦硅烷化处理的表面获得的微剪切值与未处理表面相似。
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