PMID: 9558507Apr 29, 1998Paper

Comparison of three instruments in the preparation of curved root canals

Endodontics & Dental Traumatology
Fernando Goldberg, J A Araujo

Abstract

The transportation produced in the apical and middle areas of 30 mesiobuccal root canals of human mandibular molars was evaluated after circumferential instrumentation using stainless steel K-files (group A), nickel-titanium K-files (group B), and clockwise/counterclockwise file rotation using Flexogates (group C). The canals were instrumented with files #15 to #35 in size. Apical transportation was assessed radiographically while that occurring in the middle area was studied microscopically in cross-sections. Although apical transportation was greatest in the canals of group A, this difference was not statistically significant (P > 0.05). With respect to the middle area of the root canal, considerable transportation was observed in 7 of the 30 instrumented roots. Of these, five belonged to group A and two to group B, a difference which was not statistically significant (P > 0.05). The best results for transportation in the middle area of the canal were obtained in group C, in which no transportation occurred. This difference was significant when compared with the transportation observed in group A (P = 0.02) but not with that in group B (P > 0.05).

References

Oct 1, 1992·Oral Surgery, Oral Medicine, and Oral Pathology·W L WildeyS Montgomery
Jan 1, 1991·International Endodontic Journal·B M Briseño, E Sonnabend
May 1, 1987·Journal of Endodontics·L W Kielt, S Montgomery
Jan 1, 1985·International Endodontic Journal·M E Eldeeb, J C Boraas
Oct 1, 1985·International Endodontic Journal·K C Lim, J Webber
Nov 1, 1980·The Journal of the American Dental Association·M Abou-RassD H Glick
Jan 1, 1995·Journal of Endodontics·D J LuitenJ G Marshall

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Citations

Apr 30, 2010·Indian Journal of Dental Research : Official Publication of Indian Society for Dental Research·M H ZarrabiH Esmaeili
Jul 29, 2006·International Endodontic Journal·C H TroianE P M Oliveira
Aug 14, 2018·International Endodontic Journal·R C HartmannG Rossi-Fedele

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