<i>Nobody is claiming that bleach is useful in similar applications.</i><p>Au contraire!<p><i>Sodium hypochlorite is available globally at exceptionally low cost as household bleach in concentrations of 5%-6%....  Sodium hypochlorite has been used as an antiseptic agent in dentistry for more than a century and remains a widely used root canal irrigant at concentrations ranging from 1.0%-5.25%..... The American Dental Association Council on Dental Therapeutics has designated dilute sodium hypochlorite a &quot;mild antiseptics mouth rinse&quot; and suggested its use for direct application to mucous membranes.</i><p><a href="http:&#x2F;&#x2F;www.medscape.com&#x2F;viewarticle&#x2F;749509_2" rel="nofollow">http:&#x2F;&#x2F;www.medscape.com&#x2F;viewarticle&#x2F;749509_2</a>