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

• Autor(a) principal: Da Frota, Matheus Franco
• Data de Publicação: 2013
• Outros Autores: Filho, Idomeo Bonetti, Villela Berbert, Fábio Luiz Camargo, Sponchiado Jr., Emilio Carlos, Franco Marques, André Augusto, Roberti Garcia, Lucas Da Fonseca
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.4103/0972-0707.105305; http://hdl.handle.net/11449/231295
• topic: Cleaning capacity; endodontics; manual instrumentation; rotatory instrumentation

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.