V.N.
Animal Welfare League in South Chicago does dentals for around 120.00. I am not sure if that includes extractions. They also do blood work and xrays at a lower fee. There prices are on their web-site. That may help to investigate what is causing her problem.
The down side is that you may have to wait 3 hours before you see a doctor depending on how busy it is.
http://www.animalwelfareleague.com/clinic.asp
Good luck