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Abstract

‘‘SUPER DENTIN’’: REINFORCEMENT OF ADHESIVE-DENTIN INTERFACE AND PROTECTION OF TOOTH STRUCTURES

Dr. Sriparna Jana*, Dr. Priti D. Desai, Dr. Debojyoti Das, Dr. Sankalita Pal, Dr. Raghunath Shil and Dr. Paromita Mazumdar

ABSTRACT

Dentin has a limited potential to resist an acid attack of secondary caries. Even after the restoration of carious lesion leakage at the interface between restoration and tooth was a frequent problem which lead to secondary caries. Dentin bonding systems have been dramatically simplified and improved during the recent decades. Monomer penetration into dentin and its polymerization creates a hybrid layer, which is essential to obtain good bonding to dentin. Diffusion of acid monomer beyond the classic hybrid layer and their ion exchange interactions with the hydroxyapatite results in formation of stable organic complexes and this modified dentin is termed as ‗Super Dentin‘ with superior resistance against caries activity created by the use of selfetching adhesive resins. Acid base resistance zone is formed beneath the hybrid layer with a self-etching primer adhesive system, considered to be due to the monomer penetration potential and fluoride release in the adhesive systems. Natural dentin has a limited potential to resist an acid attack of secondary caries; however, the acid base resistant zone does not purely consist of dentin in morphology, it is rather a combination of dentin and the adjacent hybrid layer. Therefore, the reinforced dentin has been called ‗Super Dentin‘ bearing the ability to prevent primary and secondary caries. Prospectively, the great potential of adhesive technology in creation of the ‗Super Dentin‘ would lead to the development of new materials for mechanical, chemical and biological protection of the dental structures. This review article demonstrates detail in ‗Super Dentin‘.

Keywords: Acid Base Resistance Zone, All in One Adhesive System, 10- Methacryloyloxydecyl Dihydrogen Phosphate.


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