Estudio comparativo in vitro del uso de clorhexidina al 2 % sobre la resistencia de unión microtensil de diferentes adhesivos dentinarios: Una evaluación de 6 meses

Cristián Bravo*, Camila S. Sampaio, Ronaldo Hirata, Regina M. Puppin-Rontani, Juan Ricardo Mayoral, Lluis Giner

*Autor correspondiente de este trabajo

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

4 Citas (Scopus)

Resumen

The aim of this study was to evaluate the effect of chlorhexidine (CHX) dentin treatment on microtensile bond strength (µTBS) of adhesive systems in different storage times. Occlusal enamel was removed from ninety third-molars and flat surfaces of middle dentin were exposed. Teeth were randomly divided in 6 groups according to adhesive system (etch-and-rinse : Adper Scotchbond 1XT - ASB ; self-etch: Adper Prompt L-Pop ­ APP; and universal: Single Bond Universal - SBU) and chlorhexidine (CHX) dentin treatment (2 % CHX application for 20 s prior Primer). After resin composite build up, teeth were sectioned to obtain beam specimens and divided in 3 subgroups (n=5): 72h, 3 and 6 months storage times. After the storage times, teeth were tested in tension until failure (0.5 mm/min). SEM was performed to observe hybrid layer of adhesive systems. Data were analyzed using one-way ANOVA and Tukey tests. At 72 h, all equivalent groups (same adhesive system, different dentin treatments) maintained their µTBS when compared CHX-treatment. At 3 and 6 months, non-treated CHX groups showed less µTBS than CHX-treated ones. Six months storage time did not significantly decrease µTBS, except for G2-ASB. The effect of CHX on dentin µTBS depends on storage times and adhesive systems. While immediate µTBS was not affected by CHX treatment, CHX improved dentin µTBS after 3 and 6 months.
Título traducido de la contribuciónIn-vitro comparative study of the use of 2 % chlorhexidine on microtensile bond strength of different dentin adhesives: A 6 months evaluation
Idioma originalEspañol
Páginas (desde-hasta)893-900
Número de páginas8
PublicaciónInternational Journal of Morphology
Volumen35
N.º3
DOI
EstadoPublicada - sep 2017

Nota bibliográfica

Publisher Copyright:
© 2017, Universidad de la Frontera. All rights reserved.

Palabras clave

  • Adhesion
  • Chlorhexidine
  • Dentin
  • Dentin adhesives
  • Microtensile bond strength

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