My 12 yr old son, while getting a filling performed, had a hole drilled under his tongue. He motioned to the dentist there was pain and the response, "it's not that bad, and will feel like a canker sore tomorrow." They left the drill in his mouth, which as a result drilled a hole into the flesh under his tongue. It is quite painful for him to eat, drink and talk. With the costs of dentistry, this incompetency is unacceptable. Getting a child to go the dentist is hard enough, now with this horrible and painful experience, it will be even more difficult to trust any dentist.
Do your research before choosing a dentist.