Gum wear. But I believe it's also genetics, and pretobacco(oral) gum health. I look back, and I think I brushed wrong all my life.
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Thanks for the feedback guys. I'm responding because I did a little research on the topic and came to some surprising conclusions. Looking at a few studies comparing the risk of specific cancers to alcohol, many studies I've read have alcohol at increasing the chance of these cancers more than tobacco, especially oral cancer. A few numbers of relative risk from
http://pubs.niaaa.nih.gov/publicatio...-4/263-270.htm
and
http://rodutobaccotruth.blogspot.com...bacco-use.html
shows that the relative risk of oral cancer is 1.28 from smokeless tobacco since 1990, and 2.77 for 4 "standard" drinks of alcohol, 1.73 for two standard drinks.
For all cancers, the relative risk is 1.22 for four standard alcoholic drinks, 1.01 for two. For smokeless tobacco, it's 0.98.
Am I missing something here? Consistently, I'm seeing that alcohol is more prone to cause cancer than smokeless tobacco. Granted both of these risks are practically miniscule... but still, relatively speaking, alcohol appears to be more harmful in regard to the cancer issue.
It may be that I'm overlooking something due to the late hour and an overworked, underpaid mind... but certainly the anti-tobacco propagandists couldn't have blown it THIS out of proportion. Then again, I wouldn't be too sure.
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