This is the response from my cllient with the abscess .
Well...it was close. In Feb 2002, for the removal of Ouachita's upper molar---full-blown surgery, and a week at Colliers afterward...$1299. Hers had to be knocked out through a hole in her face, so that might have added to cost. (Collier said he would try to pull the tooth from inside the mouth for a safe # of minutes, after which it would need to be punched out). The hole in Ouach's face healed with barely a mark...after a year, I had a hard time finding the spot. Collier inserted a blob of acrylic material in the space of the removed tooth (like a false tooth) to keep the adjacent teeth from shifting into the gap, (and possibly loosening), before the hole in the jawbone had a chance to completely granulate in. She was on a run of antibiotics for the week prior to the surgery.
She had a fracture that ran the length of the tooth, and some destruction of the jawbone at the root from the abscess. Collier gave me the tooth afterward. He stuck a needle in the mouth end of the tooth, a piece of hay came out the root end!!! Eeewwww. Her breath smelled bad, and Darren found the tooth was cracked when he came out to float (she leapt in the air when he touched it)
I'd still get a second opinion, but it sounds like they think they won't be able to pull the tooth.
Talk to different equine vets.