In vitro evaluation of an alternative method to bond molar tubes |
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Authors: | Pinzan-Vercelino Célia Regina Maio Pinzan Arnaldo Gurgel Júlio de Araújo Bramante Fausto Silva Pinzan Luciana Maio |
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Institution: | Department of Orthodontics, University Center of Maranh?o (UNICEUMA), S?o Luís, MA, Brazil. cepinzan@hotmail.com |
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Abstract: | Despite the advances in bonding materials, many clinicians today still prefer to place
bands on molar teeth. Molar bonding procedures need improvement to be widely accepted
clinically.ObjectiveThe purpose of this study was to evaluate the shear bond strength when an additional
adhesive layer was applied on the occlusal tooth/tube interface to provide reinforcement
to molar tubes.Material and methodsSixty third molars were selected and allocated to the 3 groups: group 1 received a
conventional direct bond followed by the application of an additional layer of adhesive
on the occlusal tooth/tube interface, group 2 received a conventional direct bond, and
group 3 received a conventional direct bond and an additional cure time of 10 s. The
specimens were debonded in a universal testing machine. The results were analyzed
statistically by ANOVA and Tukey’s test (α=0.05).ResultsGroup 1 had a significantly higher (p<0.05) shear bond strength compared to
groups 2 and 3. No difference was detected between groups 2 and 3 (p>0.05).ConclusionsThe present in vitro findings indicate that the application of an
additional layer of adhesive on the tooth/tube interface increased the shear bond
strength of the bonded molar tubes. |
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Keywords: | Molar Shear strength Dental bonding |
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