Por favor, use este identificador para citar o enlazar este ítem: http://repositorio.ufc.br/handle/riufc/10996
Tipo: Artigo de Periódico
Título : Ex vivo evaluation of three instrumentation techniques on E. faecalis biofilm within oval shaped root canals
Autor : Nakamura, Vitor Cesar
Candeiro, George Taccio de Miranda
Cai, Silvana
Gavini, Giulio
Palabras clave : Endodontia;Instrumentos Odontológicos
Fecha de publicación : ene-2015
Editorial : Brazilian Oral Research
Citación : NAKAMURA, V. C. ; CANDEIRO, G. T. M. ; CAI, S. ; GAVINI, G. Ex vivo evaluation of three instrumentation techniques on E. faecalis biofilm within oval shaped root canals. Brazilian Oral Research, v. 29, n. 1, p. 1-7, jan. 2015.
Abstract: The objective of the present study was to assess the effectiveness of reciprocating instrumentation in disinfecting oval-shaped root canals infected with Enterococcus faecalis. Forty-five human lower premolars were infected with a culture of E. faecalis (ATCC 29212) for 28 days. Five other teeth that were neither contaminated nor instrumented were used as controls. The 45 specimens were divided into three experimental groups (n = 15) based on the root canal preparation technique used: manual (K-type, Dentsply Maillefer, Ballaigues, Switzerland); rotary (MTwo, VDW GmbH, Munich, Germany); and reciprocating (Reciproc R50, VDW GmbH, Munich, Germany) instruments. During chemomechanical preparation, 21 mL of 2.5% NaOCl was used as the irrigating solution. Microbiological sampling was performed before (S1) and immediately after (S2) the chemomechanical preparation using sterilized paper points. Specimens were then cleaved, and 0.02 g of dentine chips was collected from the root thirds to verify the presence of microorganisms in dentinal tubules. All three preparation techniques reduced the number of microorganisms in the root canal lumen and dentine chips from the root thirds, but no significant differences were observed between the three groups (p > 0.05). Reciprocating instrumentation with Reciproc R50 was effective in reducing the number of microorganisms within the root canal system. Although this technique involves the use of only one file to perform the root canal therapy, it is as effective as conventional rotary instrumentation in reducing the E. faecalis biofilm from the root canal system. However, further clinical investigations are warranted in order to ratify these results.
URI : http://www.repositorio.ufc.br/handle/riufc/10996
ISSN : 1806-8324
Aparece en las colecciones: DCOD - Artigos publicados em revistas científicas

Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
2015_art_gtmcandeiro.pdf204,15 kBAdobe PDFVisualizar/Abrir


Los ítems de DSpace están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.