NO SMOKING! NO SMOKING! NO SMOKING!
For healthy living and for healthy mouth. What affects your dental health is not only what you eat and drink.
Teeth:
Tobacco smoke produces black or brown stains on the tooth surface, which are caused by the tar products of tobacco consumption.

Oral Hygiene:
It has been found that smokers have more calculus (tartar) than non – smokers.

Tobacco Free Campaign: Nigerian Government Launches 2 Powerful Ads targeting second-hand smokers and raising cancer awareness (WATCH)
http://dentalchannel.com.ng/2017/11/13/tobacco-free-campaign-nigerian-government-launches-2-powerful-ads-targeting-second-hand-smokers-raising-cancer-awareness-watch/