on The Price Of Fresh Breath at 14:30 10/14/2008

I am a registered dental hygienist and some of this information is being misinterpreted. As someone mentioned before it is very old news that chlorhexidine stains teeth. Anyone in the dental profession could tell you this. What is also not mentioned is that chlorhexidine mouth rinses are a controlled substance and only available with a prescription in most states. They are also only prescribed to patients with periodontal disease, and not for halitosis. Mouth rinses you see in stores such as Listerine, Scope, and Crest ProHealth do not contain chlorhexidine and use other methods such as menthol, thymol, eucalyptol, and methyl salicylate. If any staining does occur it can easily be removed by brushing properly with a power toothbrush, or seeing your dental hygienist for a professional cleaning. Nothing to worry about for long term staining.