In my experience, it's not a substitute for a regular toothbrush. DD is 11 months now (see post cavities on ends of teeth.....). We used it for the 1st two months after top and bottom tooth appeared because she resisted having her teeth brushed. Now she has cavities on her front teeth, which I think could have been prevented by practising better, more thorough toothbrushing (which we're doing now, but I'm scared it may be too little too late. hope to not lose the teeth).
So my advice - it's a great little teether and dd loved it (also gets saliva flowing) ....but I'd use a real toothbrush properly to actually remove the placque. Wishing I had made brushing her teeth non-negotiable from the start. Better her fighting me than a complete stranger in a strange place in dentist office....
