Original scientific paper

Effectiveness of the ProTaper Universal Retreatment™ System and the Manual Technique in Endodontic Re

Carlos Menezes Aguiar ; Department of Prosthetics and Oral and Facial Surgery, Faculty of Dentistry, Federal University of Pernambuco, Recife, Brazil
Grasiele de Assis Costa Lima ; Undergraduate Student, Faculty of Dentistry, Federal University of Pernambuco, Recife, Brazil
Fabiana Damo Bernart ; Undergraduate Student, Faculty of Dentistry, Federal University of Pernambuco, Recife, Brazil
Andréa Cruz Câmara ; Department of Prosthetics and Oral and Facial Surgery, Faculty of Dentistry, Federal University of Pernambuco, Recife, Brazil

Abstract

Purpose: The aim of this study was to evaluate the effectiveness of the ProTaper Universal Retreatment ™ system and manual files in endodontic retreatment using two gutta-percha solvents, Orange Oil and Eucalypthol. Material and methods: Forty mesiobuccal roots were used. The specimens were divided into four groups composed of 10 specimens each: Group 1, the filling material was removed by means of the ProTaper Universal Retreatment™ System + Orange Oil; Group 2; ProTaper Universal Retreatment™ System + Eucalyptol; Group 3, Hedström and K-files + Orange Oil; Group 4, Hedström and K-files + Eucalyptol. The specimens were subsequently evaluated by
three endodontists to verify the presence of any remaining filling material. Statistical analysis was carried out by means of the Fisher Exact test, chi-square test and the Mann-Whitney test adopting a significance level of .05. Results: Group 1 removed 73.3%, 46.7% and 23.3% of the filling material in the coronal, middle and apical thirds, respectively. Group 2 removed 83.3% of the filling material in the coronal third, 43.3% in the middle third, and 40% in the apical third. Group 3 removed 90% of the filling material in the coronal third, 80% in the middle third, and 70% in the apical third. Group 4 removed 100%, 80%, and 63.3% of the filling material in the coronal, middle and apical thirds, respectively. Conclusion: K-file and Hedström files achieved better results than the ProTaper Universal Retreatment™ system in the filling material removal, regardless of
the solvent solution used.

Keywords

Gutta-Percha; Solvents; Dental Instruments; Retreatment; Dental Pulp Cavity

Hrčak ID:

76018

URI

https://hrcak.srce.hr/76018

Publication date:

20.12.2011.

Article data in other languages: croatian

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