%0 Journal Article
%T Effect of saliva contamination on bond strength witha hydrophilic composite resin
%A Mauren Bitencourt Depr芍
%A Josiane Xavier de Almeida
%A Ta赤s de Morais Alves da Cunha
%A Luis Filipe Siu Lon
%J Dental Press Journal of Orthodontics
%D 2013
%I Dental Press Editora
%X OBJECTIVE: To evaluate the influence of saliva contamination on the bond strength of metallic brackets bonded to enamel with hydrophilic resin composite. METHODS: Eighty premolars were randomly divided into 4 groups (n = 20) according to bonding material and contamination: G1) bonded with Transbond XT with no saliva contamination, G2) bonded with Transbond XT with saliva contamination, G3) bonded with Transbond Plus Color Change with no saliva contamination and G4) bonded with Transbond Plus Color Change with saliva contamination. The results were statistically analyzed (ANOVA/Tukey). RESULTS: The means and standard deviations (MPa) were: G1)10.15 ㊣ 3.75; G2) 6.8 ㊣ 2.54; G3) 9.3 ㊣ 3.36; G4) 8.3 ㊣ 2.95. The adhesive remnant index (ARI) ranged between 0 and 1 in G1 and G4. In G2 there was a prevalence of score 0 and similar ARI distribution in G3. CONCLUSION: Saliva contamination reduced bond strength when Transbond XT hydrophobic resin composite was used. However, the hydrophilic resin Transbond Plus Color Change was not affected by the contamination. OBJETIVO: avaliar a influ那ncia da contamina  o por saliva na resist那ncia de uni o de braquetes met芍licos colados ao esmalte com um comp車sito resinoso hidrof赤lico. M谷TODOS: oitenta pr谷-molares foram divididos aleatoriamente em quatro grupos (n=20), de acordo com o material de colagem e a presen a de contamina  o - G1) colagem com Transbond XT na aus那ncia de contamina  o; G2) colagem com Transbond XT na presen a de contamina  o; G3) colagem com Transbond Plus Color Change na aus那ncia de contamina  o; G4) colagem com Transbond Plus Color Change na presen a de contamina  o. Os resultados foram tratados estatisticamente (ANOVA/Tukey). RESULTADOS: as m谷dias e desvios-padr o (MPa) foram G1 = 10,15 ㊣ 3,75; G2 = 6,8 ㊣ 2,54; G3 = 9,3 ㊣ 3,36; G4 = 8,3 ㊣ 2,95. O 赤ndice de adesivo remanescente (IAR) variou entre 0 e 1 no G1 e no G4; no G2, houve predom赤nio do escore 0 e distribui  o similar no G3. CONCLUS O: a contamina  o por saliva reduziu a resist那ncia de uni o no grupo que usou a resina hidrof車bica Transbond XT. Por outro lado, a resina hidrof赤lica Transbond Plus Color Change n o foi influenciada pela contamina  o.
%K Saliva
%K Braquetes ortod nticos
%K Resist那ncia ao cisalhamento
%K Adesivos
%K Saliva
%K Orthodontic brackets
%K Bond strength
%K Adhesives
%U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512013000100015