Effect of previous irrigation with chlorhexidine on the push-out bond strength of a calcium silicate-based material

Carolina Oliveira de Lima, Hugo Gonçalves Dutra, Thais Mageste Duque, Celso Neiva Campos, Vasudev Ballal, Renata Antoun Simão, Maíra Prado

Research output: Contribution to journalArticle

Abstract

This study evaluated the effect of previous irrigation with chlorhexidine (CHX) on the bond strength of a calcium silicate-based material, Biodentine, when used for furcal repair. Furcal perforations were produced in 30 extracted mandibular molars. Teeth were divided into 3 groups according to the irrigant used: distilled water (DW), CHX followed by DW (CHX), and CHX followed by ethylenediaminetetraacetic acid (EDTA) and DW (CHX/EDTA). Biodentine was used to repair the perforations. A push-out bond strength test was performed after 7 days, and data were statistically analyzed using Kruskal-Wallis and Dunn tests (P < 0.05). The CHX/EDTA group showed significantly lower values than the DW and CHX groups (P < 0.05). The failure mode of the DW group was mainly mixed, while that of the CHX group was cohesive. The CHX/EDTA group exhibited adhesive and mixed failures. Irrigation with CHX prior to furcation repair did not result in a statistically significant difference, compared to the use of DW, in the push-out bond strength of Biodentine.

Original languageEnglish
Pages (from-to)58-61
Number of pages4
JournalGeneral Dentistry
Volume67
Issue number3
Publication statusPublished - 01-05-2019

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

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    de Lima, C. O., Dutra, H. G., Duque, T. M., Campos, C. N., Ballal, V., Simão, R. A., & Prado, M. (2019). Effect of previous irrigation with chlorhexidine on the push-out bond strength of a calcium silicate-based material. General Dentistry, 67(3), 58-61.