How much does abscess surgery cost on a dog?

Without a full oral exam there is no way to provide an estimate. A simple tooth extraction under heavy sedation and local anesthesia but no surgery may run a couple hundred dollars. In contrast, a severe infection penetrating into the jawbone and affecting the adjacent teeth may run you over $1000.

Your veterinarian should be able to quote you a price for an examination, dental radiographs (if they provide this service) and bloodwork for surgery, as this would be the baseline information needed to figure out what is going on with the dog's tooth. After this has been completed, the veterinarian can lay out a reasonable estimate covering low to high based upon what needs to be done and potential complications.