V.B.
The reason most dentists don't do it is because they aren't always erupted. If they are impacted, it requires oral surgery to remove them. That's probably why she keeps getting referred to oral surgeons. They do oral surgery and her wisdom teeth are likely impacted or partially impacted and will require surgery to remove.
You can choose to have the surgery without full anesthesia (my brother did it that way) but I wouldn't after hearing his recount of the surgery. Also, depending on how impacted, some insurances will cover it as a medical/surgical rather then "dental" if I'm not mistaken? But yes, it is expensive.
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As for what you paid when you had yours done... I had all 4 of mine done by an oral surgeon, with full sedation, when I was in my very early 20s. It was around $1,200 and that was at least 25 years ago now. Superb job. Some would have been covered by insurance (and maybe a small bit was, it was so long ago I'm not even sure anymore), but I was young and healthy and hadn't met ANY of my deductible beforehand. My out of pocket was in the neighborhood of $1,200 though, and included pain meds to take home with me.