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Disinclusion of unerupted teeth by mean of self-ligating brackets: effect of blood contamination on shear bond strength

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Disinclusion of unerupted teeth by mean of self-ligating brackets: effect of blood contamination on shear bond strength

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dc.contributor.author Scribante, Andrea es
dc.contributor.author Sfondrini, Maria Francesca es
dc.contributor.author Gatti, Sara es
dc.contributor.author Gandini, Paola es
dc.date.accessioned 2014-05-28T12:44:50Z
dc.date.available 2014-05-28T12:44:50Z
dc.date.issued 2013 es
dc.identifier.citation Scribante, Andrea ; Sfondrini, Maria Francesca ; Gatti, Sara ; Gandini, Paola. Disinclusion of unerupted teeth by mean of self-ligating brackets: effect of blood contamination on shear bond strength. En: Medicina oral, patología oral y cirugía bucal. Ed inglesa, 2013, Vol. 18, No. 1: 162-167 es
dc.identifier.uri http://hdl.handle.net/10550/35561
dc.description.abstract Objectives: The aim of this study was to assess the effect of blood contamination on the shear bond strength and failure site of three different orthodontic self-ligating brackets. Study Design: 240 bovine permanent mandibular incisors were randomly divided into 12 groups of 20 specimens each. Orthodontic self-ligating brackets were tested under four different enamel surface conditions: a) dry, b) blood contamination before priming, c) blood contamination after priming, d) blood contamination before and after priming. Brackets were bonded to the teeth and subsequently tested using a Instron universal testing machine. Shear bond strength values and adhesive failure rate were recorded. Statistical analysis was performed using ANOVA and Tukey tests (strength values), and Chi squared test (ARI Scores). Results: Non-contaminated enamel surfaces showed highest bond strengths for all self ligating brackets. Under blood-contamination shear bond strengths lowered for all brackets tested. Groups contaminated before and after primer application showed the lowest shear bond strength. Significant differences in debond locations were found among the groups under the various enamel surface conditions. Conclusions: Blood contamination of enamel during the bonding procedure lowers bond strength values of self ligating brackets, expecially when contamination occur in different times of the bonding procedure. en_US
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Disinclusion of unerupted teeth by mean of self-ligating brackets: effect of blood contamination on shear bond strength es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.type.hasVersion VoR es_ES

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