I just got back from my semi annual cleaning and check up. I have never had a cavity and didn't have any this time. However, the last few times I had been to the dentist I kept getting asked about smoking and how much I smoked and then the usual barage of "you need to quit" speeches. I had gotten to the point I hated going because of it. I actually looked forward to it today. The dentist was very pleased and said she could already see improvement in my gums and was extremely glad I had made the choice to quit. They didn't have to scrape nearly as much this time either. Just another bonus!