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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Effect of Disinfection Solutions on the Adhesion Force of Root Canal Filling Materials

Texto completo
Autor(es):
de Assis, Danielle Ferreira [1] ; do Prado, Maira [2] ; Simao, Renata A. [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Fed Rio de Janeiro, Dept Metallurg & Mat Engn, Rio De Janeiro - Brazil
[2] State Univ Campinas UNICAMP, Endodont Div, Dept Restorat Dent, Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF ENDODONTICS; v. 38, n. 6, p. 853-855, JUN 2012.
Citações Web of Science: 6
Resumo

Introduction: Sodium hypochlorite (NaOCl) and chlorhexidine (CHX) are usually used to disinfect gutta-percha (GP) and Resilon (Res) cones. This study investigated the adhesion force (Fad) between root canal sealers and GP and Res cones following different disinfection protocols by using atomic force microscopy. Methods: Nine flat surfaces of each material were obtained with medium points of GP and Res. The samples were divided into 6 groups (n = 3): control group GP, immersion in distilled water (DW); NaOCl group GP, immersion in 5.25% NaOCl and then washing with DW; CHX group GP, immersion in 2% CHX and then washing with DW; control group Res, immersion in DW; NaOCl group Res, immersion in 5.25% NaOCl and then washing with DW; and CHX group Res, immersion in 2% CHX and then washing with DW. Atomic force microscopy tips containing AH Plus sealer were used to obtain force versus distance curves regarding GP surfaces. Fad was calculated from the force curves. The same procedure was performed with Real Seal SE and Res surfaces. Data were statistically analyzed. Results: A higher Fad between solid filling materials (GP and Res) and root canal sealers was found when CHX solution was used. Treatment with NaOCl solution did not show influence on the Fad values. Conclusions: The decontamination of GP and Res with 2% CHX resulted in higher Fad values. The use of CHX in the disinfection process of GP and Res cones might be a better option before root canal obturation. (J Endod 2012;38:853-855) (AU)

Processo FAPESP: 09/53976-0 - Avaliação da ação de diferentes soluções irrigadoras na adesão entre o complexo material obturador-dentina: proposição de aprimoramento nos métodos de avaliação de força de adesão e associação adesão-infiltração bacteriana
Beneficiário:Maira Do Prado
Modalidade de apoio: Bolsas no Brasil - Doutorado