2007
DOI: 10.1590/s1806-83242007000100014
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Tensile bond strength of self-etching versus total-etching adhesive systems under different dentinal substrate conditions

Abstract: The use of acid etchants to produce surface demineralization and collagen network exposure, allowing adhesive monomers interdiffusion and consequently the formation of a hybrid layer, has been considered the most efficient mechanism of dentin bonding. The aim of this study was to compare the tensile bond strength to dentin of three adhesive systems, two self-etching ones (Clearfil SE Bond -CSEB and One Up Bond F -OUBF) and one total-etching one (Single Bond -SB), under three dentinal substrate conditions (wet,… Show more

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Cited by 30 publications
(25 citation statements)
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“…Results of laboratory studies found in the literature is controversial regarding whether or not to use this agent and there is not much information on how these agents may affect the bond of composite resin materials. In previous studies, the morphology of the adhesive interface has been studied to in order to identify the hybridization patterns provided by adhesive systems under many different conditions [20,21]. The collapse in collagen fibers, caused by dentin hydration [22], limits the possibility of the micromechanical retention of the adhesive system in primed dentin.…”
Section: Discussionmentioning
confidence: 99%
“…Results of laboratory studies found in the literature is controversial regarding whether or not to use this agent and there is not much information on how these agents may affect the bond of composite resin materials. In previous studies, the morphology of the adhesive interface has been studied to in order to identify the hybridization patterns provided by adhesive systems under many different conditions [20,21]. The collapse in collagen fibers, caused by dentin hydration [22], limits the possibility of the micromechanical retention of the adhesive system in primed dentin.…”
Section: Discussionmentioning
confidence: 99%
“…Theoretically, there is no or small difference between the depths of demineralization and resin infiltration induced by this system because both processes occur simultaneously (14)(15)(16). However, this adhesive strategy also has high hydrophilicity, which attracts water and compromises adhesive interface integrity (17,18).…”
Section: Introductionmentioning
confidence: 99%
“…1 Dental adhesive systems are used to promote adhesion between composite resins and dental structure and should present a similar performance on both enamel and dentin. 2 Resin bonding to enamel is considered a durable and predictable clinical procedure. [3][4][5] The micromechanical nature of the interaction of dental adhesives with enamel is a result of the infiltration of resin monomers into the microporosities left by acid dissolution of enamel and the subsequent enveloping of the exposed hydroxyapatite crystals with polymerized monomers within pores in the enamel surface.…”
Section: Introductionmentioning
confidence: 99%
“…5 The dentin substrate differs from enamel, as it presents more organic contents, an increased presence of fluid inside the dentinal tubules, a smear layer, and an inherent surface wetness. 2,7 Adhesive systems can be classified based on how they react with the smear layer. Three mechanisms of adhesion are currently in use with modern adhesives: etch-and-rinse adhesives, which remove the smear layer and superficial hydroxyapatite through etching with a separate acid gel; self-etch adhesives, which make the smear layer permeable without removing it completely; and glass ionomer adhesives, which are self-adhesive to tooth tissues.…”
Section: Introductionmentioning
confidence: 99%
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