my bubby was 4months old when getting his first 2 teeth. I started giving him teething rusks about 2 weeks later - although he did only suck on them!
IT WAS TOO EARLY! he choked on them 2 times i wasnt going for a 3rd time. He started to suck through and grind the 2 teeth on the base of the rusk and suck it enough to snap some off about a 1cm piece. IT WAS THE SCARIEST THING THAT EVER HAPPEND!!! there is no warning on the rusks box that they are a choking hazard, but what ever you do if you give them to your children before 6months watch them every moment!
He is now a few days off of 9months old and has been having them safely for about the last 2-3months. I wouldnt try them if i was to have another child until he/she was 6months old.
Just be carefull i hope this helps!
mumsgroup.tk -Kayden 31.1.05 & Tianah 25.8.06