Wee boy chipped a front tooth at about 2 1/2. Dentist looked but didn't do anything - just leave it be.
A few months later, it went grey and got infected and needed antibiotics and and the nerve drilled out. That went OK and it's been fine for the last year or so.
Friday night he only falls onto his bed and nearly removes the other front tooth. Dentist says that one's going to go grey now as it's pretty squint
Good thing they get practice teeth when they're young.
Do look out for any infection - wee boy complained of a sore tooth and then a day later the tooth was very loose and all kinds of yellow gunk coming out of the gum. That was a frightening thing to see! Prompt application of antibiotics (and a great dentist) saved the tooth.
Edit - dentist had him in for a couple of practice visits before doing any drilling to get him used to the chair/noises/environment. Worked a treat and the wee lad sat still for the root canal without flinching.