Crest Pro-Health Multi-Protection mouthrinse contains sodium fluoride 0.0219% and an anti-microbial agent, cetylpyridinium chloride (CPC). This product does not contain alcohol which is beneficial to use in patients with dry mouth. While CPC is effective in reducing gingivitis, causing extrinsic staining of teeth is one of the known side effects of using this product.
Here is the link to a news video clip reporting consumer complaints of their teeth turning brown after using Crest Pro-Health rinse.
Link to Crest ProHealth
Research Article:
Antimicrobial efficacy of 0.05% cetylpyridinium chloride mouthrinses. Letters in Applied Microbiology. 2013
This study shows the reduction of supragingival plaque and plaque-associated gingivitis after using a CPC containing mouthrinse.
The staining potential of various currently marketed mouthrinses. The Journal of Clinical Dentistry. 2013
This study demonstrated that regular use of Crest Pro-Health rinse increased the extrinsic stain accumulation after six weeks.
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