Evaluation of the Interaction between Endodontic Sealers and Dentin Treated with Different Irrigant Solutions

Autor(es)

de Assis, Danielle Ferreira ^[1] ; do Prado, Maira ^[2] ; Simao, Renata A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Rio de Janeiro, Dept Met & Mat Engn, Rio De Janeiro - Brazil

^[2] State Univ Campinas UNICAMP, Dept Restorat Dent, Endodont Div, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF ENDODONTICS; v. 37, n. 11, p. 1550-1552, NOV 2011.
• Citações Web of Science: 30

Resumo

Introduction: Dentin surface treatment with different substances might cause alterations in chemical and structural compositions of the human dentin. The aim of this study was to investigate the wettability of endodontic sealers in contact with dentin treated with 5.25% sodium hypochlorite (NaOCl) and 2% chlorhexidine (CHX) in the presence or absence of smear layer. Methods: Thirty-six dentin slices were used. They were irrigated with NaOCl and washed with distilled water (DW) to simulate irrigation during chemomechanical preparation. After this procedure, the samples were divided into 6 groups: group 1, DW (control); group 2, NaOCl + DW; group 3, CHX + DW; group 4, ethylenediaminetetraacetic acid (EDTA) + DW; group 5, EDTA + DW + NaOCl + DW; group 6, EDTA + DW + CHX + DW. The Rame-Hart goniometer was used to measure the contact angle between the dentin surfaces and the AH Plus and Real Seal SE sealers. Data were statistically analyzed. Results: With regard to the contact angle between AH Plus and treated surfaces, the values of contact angle were lower when CHX was used, regardless of the presence or absence of smear layer. When Real Seal SE was evaluated, in the absence of smear layer, CHX presented lower values of contact angle. In the presence of smear layer, the use of NaOCl and CHX did not favor the spread of the sealer. Conclusions: The present study has revealed that smear layer removal and final flush with CHX favor the wettability of AH Plus and Real Seal SE sealers. (J Endod 2011;37:1550-1552) (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