Mouthwash is an important part of oral hygiene and it is meant to be the last step in oral hygiene after brushing and flossing.
There are many different types of mouthwash available but the most popular are the antiseptic and anti-plaque mouthwashes, which kill bacterial plaque that cause tooth decay, bad breath and gum disease. You can also get anti-cavity mouthwash with fluoride that helps against tooth decay.
If mouthwash is so good, then why is mouthwash an acid? The reason for this is very simple. Most mouthwashes contain alcohol, which is used to kill bacteria and germs that cause plaque and bad breath. Use of alcohol increases the pH level of the mouthwash making it acidic. It is because of the acidic nature of mouthwash, that it is considered to be an acid.
It is estimated that nearly 90 percent of all mouthwashes have extremely high levels of alcohol making them as acidic as household vinegar. Then there are other acidic ingredients in a mouthwash which when combined with alcohol can be extremely corrosive to the protective layer of tooth known as enamel. If the enamel is destroyed or damaged, as it happens with long term use of alcohol-based mouthwash, it can lead to teeth sensitivity.
The lower the pH level of a mouthwash, the more acidic its nature. And repeated tests have shown that popular brands like Listerine and Peroxyl have highly acidic nature. It is because of this reason that mouthwash is considered to be an acid.
It is recommended that you use a neutral non-alcoholic mouthwash for continuous and prolonged use. And, mouthwash should never be used as a pre-brushing rinse even if the pH is neutral or low.
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