Bio-active restorative materials with antibacterial effects: new dimension of innovation in restorative dentistry.
Restorative materials in the new era should be "bio-active", and antibacterial effects are highlighted as one of the important properties. In order to achieve resin-based restoratives with antibacterial effects, an antibacterial monomer MDPB has been developed. The primer incorporating MDPB demonstrated cavity-disinfecting effects, and the world's first antibacterial adhesive system employing the MDPB-containing primer was successfully commercialized. MDPB is potentially applicable to various restoratives since immobilization of the antibacterial component by polymerization of MDPB enables no deterioration in mechanical properties of cured resins and exhibition of inhibitory effects against bacterial growth on their surfaces. For glass-ionomer cements used for atraumatic restorative treatment, the approach to provide antibacterial activity has been attempted by addition of chlorhexidine. Incorporation of 1% chlorhexidine diacetate was found to be optimal to give appropriate antibacterial and physical properties, being effective to reduce the bacteria in affected and infected dentin in vivo.
Imazato
Satoshi
S
Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan. imazato@dent.osaka-u.ac.jp
D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D001672:Biocompatible Materials / Q000494:pharmacology*; D002710:Chlorhexidine / Q000494:pharmacology; D003764:Dental Materials / Q000494:pharmacology*; D003793:Dental Restoration, Permanent; D005899:Glass Ionomer Cements / Q000494:pharmacology; D006801:Humans; D011726:Pyridinium Compounds / Q000494:pharmacology; D012117:Resins, Synthetic / Q000494:pharmacology; D013499:Surface Properties
D000900:Anti-Bacterial Agents; D001672:Biocompatible Materials; D003764:Dental Materials; D005899:Glass Ionomer Cements; D011726:Pyridinium Compounds; D012117:Resins, Synthetic; C089392:methacryloyloxydodecylpyridinium bromide; D002710:Chlorhexidine