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J. appl. oral sci ; 21(1): 63-67, 2013. ilus, tab
Artigo em Inglês | LILACS, BBO | ID: lil-684997

RESUMO

Objective: This study evaluated the hydrophobicity of dentin surfaces that were modified through chemical silanization with octadecyltrichlorosilane (OTS). Material and Methods: An in vitro experimental study was performed using 40 human permanent incisors that were divided into the following two groups: non-silanized and silanized. The specimens were pretreated and chemically modified with OTS. After the chemical modification, the dentin hydrophobicity was examined using a water contact angle measurement (WCA). The effectiveness of the modification of hydrophobicity was verified by the fluid permeability test (FPT). Results and Conclusions: Statistically significant differences were found in the values of WCA and FPT between the two groups. After silanization, the hydrophobic intraradicular dentin surface exhibited in vitro properties that limit fluid penetration into the sealed root canal. This chemical treatment is a new approach for improving the sealing of the root canal system.


Assuntos
Humanos , Cavidade Pulpar/efeitos dos fármacos , Dentina/efeitos dos fármacos , Interações Hidrofóbicas e Hidrofílicas/efeitos dos fármacos , Tratamento do Canal Radicular/métodos , Silanos/química , Infiltração Dentária , Cavidade Pulpar/química , Permeabilidade da Dentina/efeitos dos fármacos , Dentina/química , Microscopia Eletrônica de Varredura , Reprodutibilidade dos Testes , Camada de Esfregaço , Propriedades de Superfície/efeitos dos fármacos , Fatores de Tempo , Raiz Dentária/química , Raiz Dentária/efeitos dos fármacos
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