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Tooth-Binding Micelles Containing Antimicrobials May Provide Long-Term Cavity Protection

A new study suggests that tooth-binding micelles (or particles) may provide long-term cavity protection by adhering to tooth surfaces and gradually releasing encapsulated antimicrobials. Formulation of a mouthwash-based delivery system is anticipated, ultimately simplifying application and increasing at-home patient compliance. The researchers from the University of Nebraska Medical Center, Omaha and the University of Florida, Gainesville report their findings in the November 2009 issue of the journal Antimicrobial Agents and Chemotherapy.

One of the main contributing factors to dental cavities is overpopulation of acid-producing bacteria in the oral cavity that causes localized destruction of compromised dental hard tissue. Due to the episodic nature of cavities, long-term benefits of periodic treatments administered during routine office visits are minimal. Other delivery systems developed to maintain drug concentrations, including bioadhesive tablets, patches, films, and gels, aren't very effective on the tooth surface and often cause irritation resulting in poor patient compliance. Emphasis on the need for therapeutic strategies that target the bacterial aspect of the disease and a delivery platform that would maintain the drug concentration on the tooth surface is warranted.
 
 

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