Tribst João-Paulo-Mendes, Diamantino Pedro-Jacy-Santos, de Freitas Maiara-Rodrigues, Tanaka Isabela-Vitelli, Silva-Concílio Lais-Regiane, de Melo Renata-Marques, Saavedra Guilherme-de Siqueira-Ferreira-Anzaloni
DDS, MSc, PhD, Department of Dentistry, University of Taubaté (UNITAU), Taubaté 12020-270, SP, Brazil.
DDs, MSc, PhD student, Department of Dental Materials and Prosthodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos, São Paulo, Brazil.
J Clin Exp Dent. 2021 Nov 1;13(11):e1089-e1095. doi: 10.4317/jced.58723. eCollection 2021 Nov.
The objective of this in vitro study was to evaluate the effect of the active application of self-etching ceramic primer (ME&P) on the bond strength of different dental CAD/CAM materials (Lithium Disilicate ceramic (LD), Leucite ceramic (LE), Zirconia reinforced lithium silicate ceramic (ZLS), and Hybrid ceramic (HC)) with thermocycling aging.
The samples were randomly divided into 16 groups (n = 20). Dual resin cement cylinders were made and light cured for 10 s (1.200 mW/cm2) for the shear bond strength test. 3-way ANOVA revealed that the factors were statistically significant (< 0.05).
The aging process had a negative impact on the bond strength for all groups except for Lithium Disilicate, with active application. ZLS and LE showed promising results with high bond strength values for the ME&P active application; however, after aging the bond strength value was significantly reduced. HC showed reduced bond strength values regardless the ME&P application.
In order to obtain a durable bond strength, the recommended protocol of 20 s of active application followed by 40 s of sitting time in the self-etching ceramic primer should be followed when using reinforced-glass ceramics as restorative materials. Dentistry, dental materials, silane, shear strength, computer-aided design.
本体外研究的目的是评估主动应用自酸蚀陶瓷底漆（ME&P）对不同牙科CAD/CAM材料（二硅酸锂陶瓷（LD）、白榴石陶瓷（LE）、氧化锆增强硅酸锂陶瓷（ZLS）和混合陶瓷（HC））经热循环老化后的粘结强度的影响。
将样本随机分为16组（n = 20）。制作双树脂水泥圆柱体并进行光固化10秒（1200毫瓦/平方厘米）用于剪切粘结强度测试。三因素方差分析显示各因素具有统计学意义（<0.05）。
除了主动应用时的二硅酸锂组外，老化过程对所有组的粘结强度都有负面影响。对于ME&P的主动应用，ZLS和LE显示出良好的结果，粘结强度值较高；然而，老化后粘结强度值显著降低。无论是否应用ME&P，HC的粘结强度值都降低。
当使用增强玻璃陶瓷作为修复材料时，为了获得持久的粘结强度，建议遵循在自酸蚀陶瓷底漆中主动应用20秒然后静置40秒的方案。牙科、牙科材料、硅烷、剪切强度、计算机辅助设计。
