Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2013  |  Volume : 16  |  Issue : 1  |  Page : 79-82

Cleaning capacity promoted by motor-driven or manual instrumentation using ProTaper Universal system: Histological analysis


1 Department of Restorative Dentistry, Araraquara School of Dentistry, State University of São Paulo, Araraquara, SP, Brazil
2 Department of Endodontics, School of Dentistry, Federal University of Amazonas, Manaus, AM, Brazil
3 Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil

Correspondence Address:
Lucas da Fonseca Roberti Garcia
Rua Bernardino de Campos, 1002, apto. 30, CEP 14015-130, Ribeirao Preto, SP
Brazil
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.105305

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Aim: The aim of this study was to assess the cleaning capacity of the Protaper system using motor-driven or manual instrumentation. Materials and Methods: Ten mandibular molars were randomly separated into 2 groups (n = 5) according to the type of instrumentation performed, as follows: Group 1 - instrumentation with rotary nickel-titanium (Ni-Ti) files using ProTaper Universal System (Dentsply/Maillefer); and, Group 2 - instrumentation with Ni-Ti hand files using ProTaper Universal (Dentsply-Maillefer). Afterwards, the teeth were sectioned transversely and submitted to histotechnical processing to obtain histological sections for microscopic evaluation. The images were analyzed by the Corel Photo-Paint X5 program (Corel Corporation) using an integration grid superimposed on the image. Results: Statistical analysis (U-Mann-Whitney - P < 0.05) demonstrated that G1 presented higher cleaning capacity when compared to G2. Conclusions: The rotary technique presented better cleaning results in the apical third of the root canal system when compared to the manual technique.


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