I love that the article talks about how dental infections can cause nasal abscess. I think a lot of people don't realize just how serious an abscess infection can be or that it can originate in the mouth.
That is why you can go to the dentist to get antibiotics for sinus infections because it is possible that it started as a dental problem. I have found this to be a much more affordable way to obtain antibiotics for a problem that I am certain of rather than having to make a trip to the doctor.
I wouldn't use the dentist if I wasn't sure of the problem, though. That would be irresponsible and potentially dangerous. Always go to the doctor if you are having trouble with something unfamiliar to you.