Well, it finally happened! After about a month of wondering if it really was loose, I finally could see Hunter's tooth, kinda tilted sideways a bit. He'd been mentioning that he had a loose tooth, but wouldn't allow anyone to come near it (probably for fear someone would try to tie it to the bumper of the car and hit the gas pedal). So I suggested that he wiggle it more, and he said "I'll just let the big tooth underneath to push it out." A couple of days later, I picked him up from school, and he proudly announced that he'd lost his tooth! He is now sporting a handsome empty spot in his mouth for all to see.