Shaping ability of Mtwo and Twisted File rotary systems in curved root canals
نویسندگان
چکیده
Objective: To compare the straightening of root canal curvature, the apical transportation, the loss of working length and the working time using two rotary systems. Study design: Sixty buccal root canals with angles of curvature between 30 to 99o were instrumented with Mtwo and Twisted File rotary instruments. A series of preand post-operative radiographs were superimposed to determine the straightening of root canal curvature and apical transportation. The loss of working length and working time were also calculated. Results: All data were analyzed by means of the Student ́s t-test and Mann-Whitney U-test. No statistically significant differences in the straightening of root canal curvature, apical transportation, or the loss of working length were found between groups. There was a significant difference in working time between angles of curvature when using the Mtwo system. Conclusion: Both rotary systems showed minimal changes in the original root canal curvature. Key word: apical transportation; curved root canals; Mtwo system; root canal preparation; Twisted File system. Uroz-Torres D, González-Rodríguez MP, Ferrer-Luque CM. Shaping ability of Mtwo and Twisted File rotary systems in curved root canals. J Clin Exp Dent. 2012;4(5):e275-80. http://www.medicinaoral.com/odo/volumenes/v4i5/jcedv4i5p275.pdf Article Number: 50867 http://www.medicinaoral.com/odo/indice.htm © Medicina Oral S. L. C.I.F. B 96689336 eISSN: 1989-5488 eMail: [email protected] Indexed in:
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