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

2012; Medknow; Volume: 16; Issue: 1 Linguagem: Inglês

10.4103/0972-0707.105305

0974-5203

Lucas da Fonseca Roberti Garcia, MatheusFranco da Frota, IdomeoBonetti Filho, Fábio Luiz Camargo Villela Berbert, Emílio Carlos Sponchiado Júnior, André AugustoFranco Marques,

Endodontics and Root Canal Treatments

The aim of this study was to assess the cleaning capacity of the Protaper system using motor-driven or manual instrumentation.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.Statistical analysis (U-Mann-Whitney - P < 0.05) demonstrated that G1 presented higher cleaning capacity when compared to G2.The rotary technique presented better cleaning results in the apical third of the root canal system when compared to the manual technique.