I, too, live in SLP & struggled to find a pediatric dentist, covered by insurance, in a reasonable driving area for my 2-yr-old twins. We chose to drive to Eden Prairie to see Dr. Angela Wandera (www.drangelawandera.com) and have been extremely happy with her! It's a bit of a drive, but her office is set up nicely for children, her style is calming, and everything about the clinic screams "we love kids!" Good luck!
P.S. After reading other responses, I thought it worth noting that we were asked NOT to become patients at Camp Smile, simply because we asked for appts at a time that worked for us (around twin toddlers' sleep schedules). We were actually sent a letter cancelling our appt, after being treated extremely rudely over the phone. I would strongly recommend AGAINST them.