Are there any dental schools in need of patients to practice on?

My step father is suffering from an absessed tood that is in need of an extraction badly we have no insurance and he is in pain. He is nearing the end of a round of antibiodics and the tooth desperatly needs pulled before re-infection. Funds are low as well so we are looking for a school in Texas, preferably around the Fort Worth area that offers dental care for students for a free or low cost soultion to this problem.