How Does Smoking affects Dental and Oral Health?

How Does Smoking affects Dental and Oral Health?
Smoking is not merely associated with lung cancer and heart disease, it also damages state of the mouth. Smoking raises the risks of tooth loss, but more importantly, it is the main cause of throat and oral cancers.
Although smoking and chewing tobacco doesn't increase the risk of having cavities, it may do a lot of harm to the gums and also other parts of the mouth:
The potential risk of loss of tooth in smokers is twice more than in non-smokers.
Smoking is the main cause of throat and oral cancers and pre cancerous condition.
Smoking increases periodontal disease (gum disease). In fact, according to the Journal of Periodontology, smokers are about four times more likely than people who have never smoked, to have advanced periodontal disease.
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From: http://www.pediatricdentists.blogspot.com/2012/01/how-does-smoking-affects-dental-and.html#.TwRURug5PMM.pingfm