Effect of gutta-percha solvents on fiberglass post bond strength to root canal dentin
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Data
2014
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Resumo
The purpose of this study was to investi-
gate the influence of gutta-percha solvents on the bond
strength of fiberglass post to root canal dentin. Forty
bovine incisors were decoronated, prepared, filled,
and randomly distributed into four groups (n = 10)
according to the gutta-percha solvent used: control,
xylene, eucalyptol and orange oil. After root canal
treatment, the posts were cemented into the prepared
root canals using a resin-based cement. A micro push-
out test was executed, and the patterns of failure were
assessed with microscopy. The data were analyzed
using two-way ANOVA followed by Tukey’s test.
The control group exhibited greater bond strength
compared to the eucalyptol group in the cervical and
middle thirds of the root (P < 0.05); however, it did
not differ significantly from the xylene and orange oil
groups (P > 0.05). No difference was observed in the
values of the xylene, orange oil, and eucalyptol groups
(P > 0.05). The cervical third had higher values than
the apical third for all tested solvents (P < 0.05). Adhe-
sive failure between resin cement and dentin was the
most frequent type of failure. The use of xylene and
orange oil as gutta-percha solvents did not influence
the bond strength of fiberglass posts to root canal
dentin. (J Oral Sci 56, 105-112, 2014)
Descrição
Palavras-chave
Bond strength, Endodontic retreatment, Fiber post, Eucalyptol, Gutta-percha solvent
Citação
GUEDES, Orlando A. et al. Effect of gutta-percha solvents on fiberglass post bond strength to root canal dentin. Journal of Oral Science, Tokyo, v. 56, n. 2, p. 105-112, 2014.