My family has been seeing Dr. Debra Duffy in Flower Mound since my kids were each 2 or 3. I really like the family environment in that office. The staff is amazing and when I tell my kids that their dentist appointment is coming up, they both say, "YEAH!"
Hers is the dentist office where the parent is allowed to go back with your child on the first visit and the remaining visits they go back by themselves. I love this. They gain the self-confidence to do it w/o me or their dad and I know they behave a lot better w/o me hovering. Neither of them has had any hesitation to go back and neither have I in sending them.
The website for Dr.Duffy suggests the first visit at 12 months. If you call them, I'm sure they can help you decide whether or not to make your first appointment. I cannot say enough about how happy we have been at this office!
http://www.debraduffydds.com/first_visit.html