i efb my son is 9 months & has 6 teeth too. my son never hurt me he rubbed his teeth when he first got them but it never was bad. i plan on ebf til 1 then only doing morning & night feedings until he decides to stop.
I've been ebf for 6 1/2 months now (no bottles) and my baby recently got her first tooth, it doesn't hurt she's real gentle so I intend to breastfeed as long as can and let her self-wean. I'm also skipping bottles and going straight to cups when we start foods.
Some babys are born with teeth sooooo yeah they recomend atleast 6mo but the WHO world health organization pushed from 1 year to 2 :) I went 22months with my first son and 17monwith my second son. I plan to do about the same this time around. It's so hard to wean them!!