Ive been told by my dentist that i will need surgery because the nerves are becoming exposed in 2 of my teeth...will my dentist refer me to a dental surgeon?
So, does he want you to have them out under a GA or will he do them for you in the chair? Dentists ARE Dental Surgeons, maybe you mean an Oral Surgeon (would do them under GA)?
It doesn't really matter if the nerves in a tooth are exposed, it can still be extracted in the chair and be a simple and straight forward extraction. If the teeth are impacted, not fully erupted or badly decayed (yours sound like they are for the nerve to be exposed) you may require a surgical extraction (cut and sutures) instead of just a simple one (no cutting or sutures).
If the teeth are going to be surgical extractions, sometimes it is better to have it done under a GA as opposed to in the chair as it can be stressful!
Dentists and Oral Surgeons can charge what they like so fees vary. You would be best finding out exactly what type of extractions they are going to be and get the item numbers for the procedure and ring around some other Dentists to see what their fee would be. But in saying that, cheaper is not always better!