Does anyone know a dentist in Phoenix who does volunteer work? My (foster) daughter has a tooth that has been aching for a year, and she's a single mom who can't afford to see a dentist. I suspect by now she needs a root canal, as she has not had a visit to the dentist since she left my house at age 14. That was fourteen years ago. She's pregnant with a third child, and I don't want tooth decay to harm her or the baby. Since my friend died of sepsis from a tooth cleaning, I'm very wary of this...