According to the research, “Long-term use of ethanol-containing mouthwashes should be discouraged, given recent evidence of a possible link with oral cancer.” Leading brands may contain as much as 26% alcohol, and may have other unwanted effects such as gingivitis, a stage of gum disease, or detachment of cells that line the mouth. Mouthwash brands without alcohol may often be purchased at health food stores or directly at your local dental office.

Find out what else Dr. O’Rielly has to say about tooth whitening and decalcification of teeth