Comparative evaluation of shear bond strength of metallic brackets bonded with two different bonding agents under dry conditions and with saliva contamination.
نویسندگان
چکیده
BACKGROUND This study compared the shear bond strength of metallic brackets bonded with Single Bond and Assure bonding agents under dry and saliva-contamination conditions. METHODS Sixty sound premolar teeth were selected, and stainless-steel brackets were bonded on enamel surfaces with Single Bond and Assure bonding agents under dry condition or with saliva contamination. Shear bond strength values of brackets were measured in a universal testing machine. The adhesive remnant index scores were determined after debonding of the brackets under a stereomicroscope. One-way analysis of variance (ANOVA) was used to analyze bond strength. Two-by-two comparisons were made with post hoc Tukey tests (p<0.001). Frequencies of adhesive remnant index scores were analyzed by Kruskal-Wallis test. RESULTS Bond strength values of brackets to tooth structure were 9.29±8.56 MPa and 21.25±8.93 MPa with the use of Assure resin bonding agent under saliva-contamination and dry conditions, respectively. These values were 10.13±6.69 MPa and 14.09±6.6 MPa, respectively, under the same conditions with the use of Single Bond adhesive. Contamination with saliva resulted in a significant decrease in the bond strength of brackets to tooth structure with the application of Assure adhesive resin (p<0.001). There were no significant differences in the adhesive remnant index scores between the study groups. CONCLUSION Application of Single Bond and Assure bonding agents resulted in adequate bond strength of brackets to tooth structures. Contamination with saliva significantly decreased the bond strength of Assure bonding agent compared with dry conditions.
منابع مشابه
Comparative Evaluation of Shear Bond Strength of Metallic Brackets With Two Bonding Agents With and Without Saliva Contamination
Objectives: The present study was carried out to compare the shear bond strength of metallic brackets bonded with single Bond and Assure bonding agents under dry and saliva contamination conditions. Materials and Methods: A total 60 sound premolar teeth were selected for the purpose of this in vitro study and stainless steel brackets were bonded on enamel surfaces with single bond and assure bo...
متن کاملCorrigendum to "Comparative evaluation of shear bond strength of metallic brackets bonded with two different bonding agents under dry conditions and with saliva contamination" [J Chin Med Assoc 80 (2017) 103-108].
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Shear Bond Strength of Orthodontic Brackets and Disinclusion Buttons: Effect of Water and Saliva Contamination
PURPOSE The aim of this study was to assess the effect of water and saliva contamination on the shear bond strength and failure site of orthodontic brackets and lingual buttons. MATERIALS AND METHODS 120 bovine permanent mandibular incisors were randomly divided into 6 groups of 20 specimens each. Both orthodontic brackets and disinclusion buttons were tested under three different enamel surf...
متن کاملEffect of Saliva Contamination and sequencing time of curing the Transbond™ Plus Self Etching Primer on the Shear Bond Strength of Orthodontic Brackets
Abstract Background and aim: Over the years, improvments have been done to simplify clinical bonding procedure. One of these material is Transbond™ Plus Self Etching. The aim of this study was to evaluate the effect of saliva contamination and reusing Transbond™ Plus Self Etching Primer (SEP) on shear bond strength of orthodontic brackets. Materials and Methods: Fifty premolars divided into fiv...
متن کاملComparison of shear bond strength of the stainless steel metallic brackets bonded by three bonding systems
Introduction: In orthodontic treatment, it is essential to establish a satisfactory bond between enamel and bracket. After the self-etch primers (SEPs) were introduced for the facilitation of bracket bonding in comparison to the conventional etch-and-bond system, multiple studies have been carried out on their shear bond strengths which have yielded different results. This study was aimed at co...
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ورودعنوان ژورنال:
- Journal of the Chinese Medical Association : JCMA
دوره 80 2 شماره
صفحات -
تاریخ انتشار 2017