How often can you have to chew tobacco in order to oral cancer?

Once: Every time you bathe your oral tissues with the carcinogens that exude from the tobacco, you increase your chances. It's like playing the lottery, but in a bad way. The sooner you stop the less your chances of developing cancer.

Very High Risk: Smokers and dippers are many times more likely than non-smokers and/or non-consumers of alcohol to develop these cancers. Use this time as an opportunity to stop using tobacco.