Effects of water-aging for 6 months on the durability of a novel antimicrobial and protein-repellent dental bonding agent

Abstract

A strong, long-lasting bonding agent developed by researchers in the US and China can protect tooth restorations from bacteria and proteins. Tooth restorations often fail due to recurrent decay which starts when bacteria invade the interface between the tooth and the restoration material, producing acids. To combat this problem, Ning Zhang at the University of Maryland, Baltimore, and Capital Medical University, Beijing, and co-workers infused the commercial Scotchbond Multi-Purpose primer and adhesive with two chemicals known to inhibit the formation of bacterial biofilms. The team stored bonded teeth in warm water for six months, after which they found no decline in the bond strength, or its resistance to oral proteins and bacteria. They hope that by incorporating the same protective chemicals into cements, composites and sealants, failure rates in tooth restorations could be reduced.

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