Efficacy of accelerated aging methods to degrade the adhesive interface of dentin cavities bonded with etch-and-rinse adhesive systems

被引：1
作者：
de Freitas Chaves, Leticia Virginia [1 ]
de Freitas Chaves, Vanessa Suzana [1 ]
dos Santos Felix, Mayane Dayse [1 ]
Dutra Borges, Boniek Castillo [1 ]
Alves da Costa, Giovanna de Fatima [1 ]
Geraldeli, Saulo [2 ]
机构：
[1] Fed Univ Rio Grande Norte UFRN, Dept Dent, Natal, RN, Brazil
[2] Univ Florida, Dept Operat Dent, Gainesville, FL USA
来源：
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY | 2016年 / 30卷 / 19期
关键词：
Dentin; push-out bond strength; durability; bonding performance; DURABILITY; STRENGTH; RESTORATIONS; ADAPTATION; CONVERSION; INCREASE; STORAGE;
D O I：
10.1080/01694243.2016.1174521
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This study evaluated the bond durability produced by etch-and-rinse (E&R) adhesive systems in response to traditional and accelerated aging methods. Tridimensional dentin cavities were prepared on 80 bovine incisors, which were bonded with a 3-step E&R (Adper Scotchbond Multipurpose Plus - MP) and a 2-step E&R (Adper Single Bond 2 (SB) adhesive systems, and restored with composite. The samples were stored in water for 24 h, and then subjected to each of the aging methods (n=10): control group - only 24-h storage (not exposed to additional aging), 6- and 12-month water storage, and 10% NaOCl storage. The push-out bond strength test was performed in a universal testing machine. Failure modes were evaluated by scanning electron microscopy. Data were analyzed by two-way ANOVA and Tukey tests (p<0.05). Aging methods provided statistically similar bond strength for 3-step E&R adhesive system (p>0.05). 10% NaOCl storage provides statistically similar bond strength values to 6- and 12-month water storage (p>0.05), which were statistically lower than those provided by 24-h water storage (control group) (p<0.05). Adhesive failures were more frequent. Aging methods provided different behaviors according to each adhesive system. The accelerated 10% NaOCl storage was effective to decrease bond strength only for 2-step E&R adhesive system.
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收藏
页码：2100 / 2108
页数：9
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