Effect of surface area and air-drying distance on shear bond strength of etch-and-rinse adhesive

被引：11
|
作者：
El-Askary, Farid Mohammed Sabry [1 ]
Nassif, Mohammed Salah Abdelaziz [2 ]
Andrade, Andrea Mello [3 ]
Reis, Alessandra [4 ]
Loguercio, Alessandro Dourado [4 ]
机构：
[1] Ain Shams Univ, Fac Dent, Dept Operat Dent, Cairo, Egypt
[2] Ain Shams Univ, Fac Dent, Dent Biomat Dept, Cairo, Egypt
[3] Univ Sao Paulo, Dept Dent Mat, Sch Dent, Sao Paulo, Brazil
[4] Univ Estadual Ponta Grossa, Dept Restorat Dent, Sch Dent, Ponta Grossa, PR, Brazil
来源：
BRAZILIAN ORAL RESEARCH | 2012年 / 26卷 / 05期
关键词：
Dentin-Bonding Agents; Shear Strength; Material Testing; DENTIN; RESIN; EVAPORATION; SYSTEMS; TIME; HEMA;
D O I：
10.1590/S1806-83242012005000013
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
We evaluated the effects of air-drying distance and bond surface area on the shear bond strength of a 2-step etch-and-rinse adhesive. A total of 120 bovine anterior teeth were equally divided into 6 main groups based on bonding surface area. The main groups were divided into sub-groups (n = 5) according to air-drying distance. The shear strength was determined using a universal testing machine at a crosshead speed of 0.5 mm/min. The averaged results were subjected to two-way ANOVA and Tukey's test (alpha = 0.05). Two-way ANOVA testing identified no significant cross-product interactions (p > 0.05), but the main factors of area (p < 0.0001) and air-drying distance (p < 0.00001) significantly affected the mean bond strength. Shorter air-drying distances improved bond strength, and increased surface area decreased the bond strength.
引用
收藏
页码：418 / 423
页数：6
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