Assessment of canal walls after biomechanical preparation of root canals instrumented with protaper universalTM rotary system

Authors

  • Carlos Menezes Aguiar Federal University of Pernambuco; Dental School; Department of Prosthodontics and Oral and Facial Surgery
  • Daniela de Andrade Mendes Federal University of Pernambuco; Dental School; Department of Prosthodontics and Oral and Facial Surgery
  • Andréa Cruz Câmara Federal University of Pernambuco; Department of Pharmaceutical Sciences
  • Antonio Poli de Figueiredo Pontifical Catholic University of Rio Grande do Sul; Postgraduate Program in Dentistry

DOI:

https://doi.org/10.1590/S1678-77572009000600010

Keywords:

Dental pulp cavity, Nickel-titanium, ProTaper Universal, Root canal preparation, Rotary instruments

Abstract

OBJECTIVE: The aim of this study was to examine the instrumented walls of root canals prepared with the ProTaper UniversalTM rotary system. MATERIAL AND METHODS: Twenty mesiobuccal canals of human first mandibular molars were divided into 2 groups of 10 specimens each and embedded in a muffle system. The root canals were transversely sectioned 3 mm short of the apex before preparation and remounted in their molds. All root canals were prepared with ProTaper UniversalTM rotary system or with NitiflexTM files. The pre and postoperative images of the apical thirds viewed with a stereoscopic magnifier (X45) were captured digitally for further analysis. Data were analyzed statistically by Fisher's exact test and Chi-square test at 5% significance level. RESULTS: The differences observed between the instrumented and the noninstrumented walls were not statistically significant (p<0.05). CONCLUSIONS: The NitiflexTM files and the ProTaper UniversalTM rotary system failed to instrument all the root canal walls.

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Published

2009-12-01

Issue

Vol. 17 No. 6 (2009)

Section

Original Articles

License

Todo o conteúdo do periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons do tipo atribuição CC-BY.

 

 

How to Cite

Assessment of canal walls after biomechanical preparation of root canals instrumented with protaper universalTM rotary system . (2009). Journal of Applied Oral Science, 17(6), 590-595. https://doi.org/10.1590/S1678-77572009000600010