A friend of my has very bad oral hygiene.  I do not understand why it is he seems not to take basic care of his teeth.  On top of it he is a smoker so he has bad breath.  This is starting to become an issue with me because it is no fun hanging with someone that breath stinks.

Beside his teeth he is a nice guy so I like to get him to take better care of his oral health.  Is there any good tips you can give to me on getting him to brush and floss better.  I not sure if he even goes to the dentist.  I either talk to him about this issue or I will start pulling back from our friendship.  Before that happens I would like to at least address it with him.