The quality of apical preparation in curved root canals using hand and rotary instrumentation techniques

Authors

  • Luiz Fernando Machado Silveira
  • Juliana Kutter Bosembecker
  • Josué Martos
  • Carmen Maria Ferrer-Luque

DOI:

https://doi.org/10.7213/aor.v7i3.23090

Keywords:

Apical preparation, Hand instrumentation, Rotary instrumentation

Abstract

Objectives: To determine the quality of apical preparation in mesiobuccal root canals of mandibular molarsusing hand stainless steel K-Flexofile, nickel-titanium rotary ProTaper and ProTaper + ProFile instruments.Materials and methods: Thirty freshly extracted mandibular molars were randomly divided intothree experimental groups (n = 10). The mesiobuccal root canals were prepared with K-Flexofile and GoldenMedium hand files (group 1); with ProTaper (group 2) and with ProTaper + ProFile rotary instruments(group 3). After histological preparation the comparative analysis was performed at 1 mm, 3 mm and 5 mmfrom the working length. Each sample was evaluated on cleaning and shaping based on established criteria.Data were analyzed statistically by the Kruskal Wallis and Mann-Whitney U tests at a 5% significance oflevel. Results: The hand instrumentation group showed significantly better apical quality preparation thanboth rotary instrumentation groups (p < 0.05). The comparison between the two rotary techniques showedno statistical differences (p > 0.05). The buccal and lingual walls of the root canals showed more pulp tissue remnants than mesial or distal walls. Conclusions: None of the three techniques was totally effective incleaning the apical root canal space of mesiobuccal canals of mandibular molars.

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Published

2011-11-28

How to Cite

Silveira, L. F. M., Bosembecker, J. K., Martos, J., & Ferrer-Luque, C. M. (2011). The quality of apical preparation in curved root canals using hand and rotary instrumentation techniques. Archives of Oral Research, 7(3). https://doi.org/10.7213/aor.v7i3.23090

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Articles