%0 Journal Article
%T Cutting ability of nickel-titanium rotary systems ProTaper, Mtwo and K3
%A Sergio Herrero Moraes
%A Marcelo Gon£¿alves
%A M¨¢rio Tanomaru Filho
%A Idomeo Bonetti Filho
%J RSBO
%D 2012
%I University of Joinville
%X Introduction: Nickel-titanium rotatory systems should remove dentin during the root canal preparation to promote the enlargement and tapered shape with continuously narrowing towards the apex. Objective: The aim of this study was to analyze the cutting ability of three NiTi rotatory systems (n = 12): ProTaper (group 1), Mtwo (group 2), and K3 (group 3). Material and methods: Thirty six maxillary molar teeth were weighted on an analytical balance before and after the rotatory preparation of the mesio-buccal root canal. Data was statistically analyzed by ANOVA and Tukey¡¯s test with a significance level of 5%. Results: The results revealed the following mass differences (g) before and after the root canal preparation: ProTaper (group 1 ¨C 0.0159 ¡À 0.004), Mtwo (group 2 ¨C 0.0125 ¡À 0.002), and K3 (group 3 ¨C 0.007 ¡À 0.003). Conclusion: ProTaper showed the highest cutting ability among the three tested nickeltitanium rotatory systems followed by Mtwo and K3.
%K Endodontics
%K instruments
%K root canal preparation.
%U http://univille.edu.br/community/depto_odontologia/VirtualDisk.html?action=readFile&file=v9n2a08.pdf&current=/ODONTOLOGIA/RSBO/RSBO_v9_n2_abril_junho2012