Effects of solvent volatilization time on the bond strength of etch-and-rinse adhesive to dentin using conventional or deproteinization bonding techniques
Junior Jose Aginaldo de Sousa, Santana Marcia Luciana Carregosa, de Figueiredo Fabricio Eneas Diniz, Faria-e-Silva Andre Luis,
소속 상세정보
( Junior Jose Aginaldo de Sousa ) - Federal University of Sergipe School of Dentistry
( Santana Marcia Luciana Carregosa ) - Federal University of Sergipe Graduate Program in Dentistry
( de Figueiredo Fabricio Eneas Diniz ) - Federal University of Sergipe Graduate Program in Dentistry
( Faria-e-Silva Andre Luis ) - Federal University of Sergipe School of Dentistry
KMID : 1034420150400030202
Abstract
Objectives: This study determined the effect of the air-stream application time and the bonding technique on the dentin bond strength of adhesives with different solvents. Furthermore, the content and volatilization rate of the solvents contained in the adhesives were also evaluated.
Materials and Methods: Three adhesive systems with different solvents (Stae, SDI, acetone; XP Bond, Dentsply De Trey, butanol; Ambar, FGM, ethanol) were evaluated. The concentrations and evaporation rates of each adhesive were measured using an analytical balance. After acid-etching and rinsing, medium occlusal dentin surfaces of human molars were kept moist (conventional) or were treated with 10% sodium hypochlorite for deproteinization. After applying adhesives over the dentin, slight air-stream was applied for 10, 30 or 60 sec. Composite cylinders were built up and submitted to shear testing. The data were submitted to ANOVA and Tukey’s test (α = 0.05).
Results: Stae showed the highest solvent content and Ambar the lowest. Acetone presented the highest evaporation rate, followed by butanol. Shear bond strengths were significantly affected only by the factors of ’adhesive’ and ’bonding technique’ (p < 0.05), while the factor ’duration of air-stream’ was not significant. Deproteinization of dentin increased the bond strength (p < 0.05). Stae showed the lowest bond strength values (p < 0.05), while no significant difference was observed between XP Bond and Ambar.
Conclusions: Despite the differences in content and evaporation rate of the solvents, the duration of air-stream application did not affect the bond strength to dentin irrespective of the bonding technique.
키워드
Air-stream application time; Dental bonding; Dentin bonding agents; Evaporation rate; Shear bond strength; Solvents
원문 및 링크아웃 정보
등재저널 정보