Radiographic evaluation of apical deviation of curved root canals after the use of manual and rotary instrumentation
Journal Title: RSBO - Year 2009, Vol 6, Issue 3
Abstract
Introduction: Preparation of root canal is notable because it is responsible for the cleaning and disinfection of the canal system and for the modeling that will allow adequate accommodation of filling material, favoring the endodontic sealing. Objective: The objective of this research was to study the occurrence of the apical deviation of curved root canals instrumented with a manual technique and two rotary systems (Profile and Race). Material and methods: Thirty mesio-vestibular canals of inferior molars were used; they were divided into three groups and instrumented with the mixed technique defended by Holland et al. (1991), with the Profile system and with the Race system.For the evaluation of apical deviation the radiographic platform method developed by Sydney et al. (1991) was used, which allows to obtain overlapped images of the first and the last instrument used in the root canal preparation in the same x-ray. Results: The analysis of the results showed that there is no statistically significant difference among the three groups in their relation to the amount of deviated canals; however,when the quality of the deviation is evaluated, there is a significant difference only between group 1 (manual technique) and group 2 (Profile system).Conclusion:When the deviation occurred, it was significantly smaller in the group instrumented with the Profile system.
Authors and Affiliations
Lais PIRES, Silvio ALBERGARIA, Flávia FAGUNDES TOMAZINHO, Luiz TOMAZINHO
Keywords
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