SciELO - Scientific Electronic Library Online

vol.26 issue5Effect of desensitizing toothpastes on dentinEffect of time of extraction on the biocompatibility of endodontic sealers with primary human fibroblasts author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Brazilian Oral Research

Print version ISSN 1806-8324


EL-ASKARY, Farid Mohammed Sabry et al. Effect of surface area and air-drying distance on shear bond strength of etch-and-rinse adhesive. Braz. oral res. [online]. 2012, vol.26, n.5, pp.418-423.  Epub July 19, 2012. ISSN 1806-8324.

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 (α = 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.

Keywords : Dentin-Bonding Agents; Shear Strength; Material Testing.

        · text in English     · English ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License