I have a question about dental service.

When I went to the health department to get my proof of pregnancy and such, the gave me a number for a dental clinic for a low price with the pregnancy plan. But the thing is, I don't want a cheap dentist! I got work done by a cheap dentist before and it sucked! Isn't there any other option? When I first became pregnant I heard that dental work is free for pregnant women on their insurance. I just want to make sure well taken care of, andy baby is well taken care of.