I am facing the choice between bridge or implant (or gap), upper right rear, I think #13. The tooth was extracted 5 years ago, after two root canals years apart failed to clean out all of old roots and I had in infection in there for several years. When the tooth first cracked, after 2 canals,before extraction, it actually opened a passage into my sinus - had a wierd breeze where one never blew before. The passage I think is no longer open, however, I still have intermittent sinus problems in that area.
Is this preexisting sinus issue reason enough to go with bridge instead of implant? I'm on limited income and will in all likelihood be going to a low-cost clinic for the work, though both would involve some "out of shop" work too. Is this another factor favoring bridge v implant?