2010
DOI: 10.4103/0972-0707.71640
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Evaluation of the effect of surface moisture on dentinal tensile bond strength to dentine adhesive: An in vitro study

Abstract: Aim:To evaluate the effect of surface moisture on dentinal tensile bond strength.Materials and Methods:Forty freshly extracted caries free, unrestored human mandibular molars were selected. The occlusal surfaces of each tooth were ground to prepare flat dentin surfaces at a depth of 1.5 mm. Following acid etching with 37% phosphoric acid for 15 sec, they were randomly grouped, with ten specimens in each: Group I – Over wet, Group II – Blot dry, Group III- One second dry, Group IV- Over dry. Each group was trea… Show more

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Cited by 17 publications
(22 citation statements)
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“…This problem may be solved by means of EWB. [127] Collagen cross-linking results in a matrix which is more resistant to hydrolysis while EWB results in improved infiltration of resin monomers, improving the mechanical properties of the hybrid layer. Cross-linked collagen also shows increased stiffness and ultimate tensile strength, thereby reducing the chances of collagen network collapse which might occur with simplified EWB.…”
Section: Discussionmentioning
confidence: 99%
“…This problem may be solved by means of EWB. [127] Collagen cross-linking results in a matrix which is more resistant to hydrolysis while EWB results in improved infiltration of resin monomers, improving the mechanical properties of the hybrid layer. Cross-linked collagen also shows increased stiffness and ultimate tensile strength, thereby reducing the chances of collagen network collapse which might occur with simplified EWB.…”
Section: Discussionmentioning
confidence: 99%
“…[1] A wet bonding protocol is advocated for the development of a uniform hybrid layer and better bonding. [2]…”
Section: Introductionmentioning
confidence: 99%
“…Esses achados corroboram com um estudo anterior que, ao testar a resistência de união de resinas compostas por meio de ensaios de microcisalhamento utilizando diferentes sistemas adesivos, foi observado que, além de a resistência adesiva diminuir com o aumento da profundidade dentinária, ela também diminuía quando os túbulos dentinários possuíam orientação perpendicular à superfície adesiva (Adebayo et al, 2008). Segundo Jayaprakash et al (2010), a compreensão da dinâmica micromorfológica e fisiológica da dentina representa um desafio para a colagem. A estrutura heterogênea de dentina torna a união a ela mais difícil, gerando resultados conflitantes sobre a qualidade dos procedimentos adesivos quando aplicado à dentina superficial ou profunda (Garcia et al, 2009).…”
Section: Discussionunclassified
“…As características do substrato desempenham um papel importante no mecanismo de adesão e resistência de união, principalmente do substrato dentinário (Jayaprakash et al, 2010). A dentina é um composto biológico complexo, hidratado e com uma microestrutura altamente orientada, dominada pelos túbulos que convergem da junção amelodentinária para a polpa, com a porção mais larga localizada para o tecido pulpar.…”
Section: Revisão Da Literaturaunclassified
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