Rinsing with a mouthwash more than three times a day can increase your risk of mouth and throat cancer, according to a Scottish study. People should not use mouthwashes on a regular basis, Dr. David Conway of the University of Glasgow Dental School told the U.K.'s Daily Mail, but should stick to brushing and flossing.
Dr. Conway's research supports a 2009 Australian study which found that mouthwashes containing alcohol enabled carcinogenic substances to infiltrate the lining of the mouth more easily. The risk was greater for those who had poor oral health.
"I would not advise routine use of mouthwash, full stop," Dr. Conway told the Daily Mail.
"There are occasions and conditions for which a dentist could prescribe a mouthwash — it could be that a patient has a low salivary flow because of a particular condition or medicine they are taking,"' he said.
"But for me, all that’s necessary in general is good regular brushing with a fluoride toothpaste and flossing combined with regular check-ups by a dentist."
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