SEM EVALUATION OF RESIN DENTINE INTER DIFFUSION ZONE ON CHLORHEXIDINE SURFACE TREATMENT OF DENTINE –IN VITRO STUDY

VINODH GANGADARAN; MANONMANI BALASUBRAMANIAN

Volume : IX, Issue : IV, April - 2019

SEM EVALUATION OF RESIN DENTINE INTER DIFFUSION ZONE ON CHLORHEXIDINE SURFACE TREATMENT OF DENTINE –IN VITRO STUDY

Vinodh Gangadaran, Manonmani Balasubramanian

Abstract :

Inadequate molecular interaction, wetting and infiltration with hydroxy– apatite depleted collagen result in incomplete hyidization leaving collagen unprotected and vulnerable to proteolytic degradation.3Hasimoto et al in 2005 reported that Chlorhexidine inhibits dentin MMP activities and there by increases the durability of resin–dentin bonding. In vivo and in vitro studies showed that less degradation of hyid layer after application of 2% Chlorhexidine on acid etched dentin ,. Aim: to evaluate the effect of chlorhexidine on microshear bond strength of 7th generation bonding agents and to evaluate the resin infiltration on the chlorhexidine treated dentin surface by scanning electron microscopic study. Results: Hyid layer measuring about 3µm to 5 µm and resin tag measuring about 2µm to 3µm were present. Apex of resin tags was observed in all the specimens