I have found a lot of online health forums but have never encountered one with a member like Bryanna who is so helpful, clear, and straightforward. Wow!

I am posting here, though, because I'd like some advice from her, or anyone, on what to do for my dental and sinus issues that seem to be progressively worse, especially what seems to be a sinus issue directly related to my upper teeth problems.

As a kid, my parents taught me to brush at night and that was it. Everything seemed fine until my late twenties (I am 28 now) when lots of problems came up, probably from the accumulated poor hygiene. I have had a couple cavities filled, and one root canal performed on a lower left molar. I also just recently had two root canals done on one upper and one lower right molar. I have changed my habits and now brush after each big meal and floss.

The upper left side of my teeth is much worse though, as tooth 15 has a quarter of the side cracked off. Tooth 14 has significant deep decay where more than half of the tooth has decayed or cracked off. The roots are still there, but the missing tooth structure also includes a little below the gumline. My dentist says that #15 needs a root canal and a crown, while #14 needs to be removed.

I am hesitant to get tooth 14 removed because of fears of bone loss at that area and the adjacent teeth shifting. The biggest concern though is that the roots of the teeth are very close to my sinuses, and I fear that an extraction would result in additional sinus issues or surgery.

For a few weeks now, when I gently blow my nose, every once in a few days, there will be a small speck or streak of dried blood in the mucus blown out. It doesn't happen every time, but once a week or so.

Yesterday, I had sinus allergy sypmtoms (runny nose, sneezing, itchy eyes). When I blow my nose, I can feel pressure in my ears and sounds of clicking or motion. My ears felt moist, so I used a Q-tip to gently clean my left ear. The Q-tip had a small patch of blood, a little dried, as well.

I have an appointment with my dentist in about two weeks.

I suspect what is happening now is that the root or infection from the root of my upper left teeth has penetrated or perforated my sinuses and caused the sinus problems I've been having. Or problems in my upper left teeth are irritating the sinuses. Does this sound about right? Does this explain the blood when blowing my nose and in my ear? Do I need antiobiotics in the meantime? Should I go see my primary care physician as well to get a blood test to test for blood infection?
Will an Xray at my dentist see what's going on with the sinuses?

Thanks very much!