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Professor Tjaderhane of Finland has found that MMPs (matrix metalloproteinases), which naturally occur in teeth, break down the extracellular matrix of composite fillings. Collagen, found in dentin, is one part of the matrix that is affected. Dentin produces MMP, so teeth are actually responsible for the bond deterioration. As much as 50% deterioration in a composite filling bond can occur in one year. Clinical trials have shown a way to reduce, and possibly eliminate, this problem.

By applying chlorhexidine, which your office probably has on hand, you can inhibit MMP enzyme activity. Chlorhexidine application can also slow tooth decay. Tests have been performed on animals to this point, so further research is necessary. However, this simple solution could be immediately implemented in dental practices once research is complete.

SOURCE: MedicalNewsToday.com