'There is some evidence that using mouthwashes does have some clinical benefit in reducing levels of plaque - but only by a bit,' says Professor Damien Walmsley, scientific adviser to the British Dental Association.
They are helpful, they are never going to be a replacement for the mechanical action of a toothbrush for getting teeth and gums clean.'
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Answer:
wow
Explanation:
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Answer: umm look on google
Explanation: and copy paste your question
Answer: B
“They was” is not correct.
