smelly tooth crown

I had  done a root canal several months ago, and I got a cown put in, everything went fine, but now i started to get a bad smell from my tooth, I brush at least twice a day, I floss every day, I just don't know my dentist says that on my next visit if the problem persist he'll do something abou it what do you think?

[Jerome Tsang, DDS]

Do you get food stuck in your crown area?  Try brushing your tongue as that's a common site for bad odor and see if that helps.  If there seems to be an issue with the crown, they need to check it to see if they can fix the problem.  If not, a new crown may be necessary.