LADIES!!!! You really shouldn't give your LO's toothbrushes to chew on. I used to let Isaac do this until one day, when he was on his 4th toothbrush, I noticed the bristles coming out and he started to choke on them. Toothbrushes aren't meant to be chewed and you are supposed to throw them away if there is any wear and tear so letting them chew them is really dangerous. The bristles are really wirey and sharp when they come out and could get lodged in their throat or inhaled.