Halitosis is a characteristic of unpleasant odours arising from the oral cavity and causing disruption in one's life. The source of halitosis can come from the oral cavity (intraoral) or from outside the mouth (extraoral). One of the causes of intra-oral is coated tongue which is a condition where the surface of the tongue is white or other coloured which is a pile of debris, food debris, and microorganisms attached to the dorsum surface of the tongue. Chlorine dioxide is a powerful oxidizing agent and is effective for killing bacteria. This research was an experimental method with pre and post-test with control group design using 30 female subjects with complaints of halitosis. The results showed that after gargling for 10 days, found 76.7% of subjects without coated tongue and 100% mild halitosis subjects became normal.
Key words: Halitosis, Coated Tongue, Chlorine dioxide
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