S.G.
Our younger daughter started at 3 as well. We use Dr. Kevin Fee in Geneva - on Fourth Street. There's also has a female dentist - Dr. Brawka (sp?) who's there. They seem to alternate days or something. Both are excellent and everyone there seems to have a wonderful manner with kids. They also have a big plastic treasure chest of little "Oriental Trader" type toys by the reception desk that kids get to choose out of. Also: stickers, pencils, etc.
I'd recommend you give them a call and voice your concerns, esp. about early teeth. I know they let us bring in our daughter at about 2 1/2 for a "dry run" so she'd know the experience and not be too confused by the REAL visit later. Worked wonders; both of our girls look forward to visiting the dentist!
(Hmmm - I remembered I have an appointment for this Friday morning!)