免费日韩片_欧美成人精品一区二区男人小说_国产乱码一区二区三区四区_国产精品国产三级国产aⅴ入口_成人看的污污超级黄网站免费_欧美一级在线免费观看_成人午夜免费无码福利片_国产乱人伦偷精品视频色欲_aaa少妇高潮大片免费看_国产精品1234_亚洲精品国产suv一区88_中文字字幕在线中文无码_精品亚洲区_午夜九九九_国产av国片精品jk制服丝袜_色综合亚洲_亚洲成av人片无码bt种子下载_欧美色就色_精品少妇的一区二区三区四区_男人用嘴添女人下身免费视频

The ethanol in mouthwash is thought to allow cancer-causing substances to permeate the lining of the mouth more easily and cause harm.

Mouthwashes can cause oral cancer and should be removed from supermarket shelves, an expert said recently.

There is 'sufficient evidence' that those containing alcohol contribute to increased risk of the disease, according to a review of the latest studies by an Australian scientist.

Professor Michael McCullough, whose findings are published in the Dental Journal of Australia, said some mouthwashes were more dangerous than wine or beer because they contained higher concentrations of alcohol - as high as 26 per cent.

He said they should only be available with a prescription and for short-term use.

'We see people with oral cancer who have no other risk factors than the use of alcohol-containing mouthwash, so what we've done in this study is review all the evidence that's out there,' he said.

Smoking and alcohol consumption are well-established risk factors in oral cancer which is diagnosed in 5,000 people in the UK each year, and causes 1,600 deaths.

Professor McCullough, from Melbourne University, said the alcohol in mouthwash allows cancer-causing substances such as nicotine to penetrate the lining of the mouth more easily.

And it can mean a toxic breakdown product of alcohol called acetaldehyde - another carcinogen - can accumulate in the oral cavity when swished around the mouth.

The review reported evidence from an international study of 3,210 people which found daily mouthwash use was a 'significant risk factor' for head and neck cancer.