Influence of working length and foraminal enlargement on foramen morphology and sealing ability.
Artículo
en Inglés
| IMSEAR
| ID: sea-178076
ABSTRACT
Aim:
The present study evaluated the influence of the working length and foraminal enlargement on the sealing ability and anatomy of the apical region of the root. Materials andMethods:
Fifty‑five roots were divided into three groups G1, instrumentation 1 mm short of the major foramen; G2, instrumentation in the limit of the apical foramen; and G3, instrumentation 1 mm beyond the foramen. All groups were prepared using nickel‑titanium rotary files and obturated with AH Plus and Gutta‑percha. Photomicrographs were taken using a scanning electron microscopy (SEM) before instrumentation, after instrumentation with each file, and after root canal filling. Moreover, bacterial microleakage with Enterococcus faecalis was performed.Results:
The results were analyzed using Mann–Whitney, Friedman, Kruskal–Wallis and Kaplan– Meier tests at a significance level of 5%. The cemental canal was uninstrumented in G1. No statistical differences regarding foramen deviation was observed when compared G2 and G3 (P > 0.05). SEM analysis showed that G2 and G3 resulted in good apical foramen obturation. Microleakage showed no statistically significant differences between all of the groups tested.Conclusions:
Under the conditions of this study, it can be concluded that foramen enlargement resulted in more apical deviation; however, no differences in bacterial microleakage was observed among the experimental groups.
Texto completo:
Disponible
Índice:
IMSEAR (Asia Sudoriental)
Idioma:
Inglés
Año:
2016
Tipo del documento:
Artículo
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