I was an adamant anti-dummy person, but then I had my DD.

She had blisters on her wrists after she was born, bf beautifully and would spit my bb out and go rooting around her her wrist as soon as she was done bfing. We introduced the dummy at three days to save her poor hands from further damage! She only had her dummy while sleeping (never had any problems if it fell out or she 'lost' it) and she was easily weaned from it just before she turned two. She sort of stopped using it for one nap and I kept it away. She bf until she was four.

She has seen the dentist and her teeth are perfectly fine. Dentist never even asked. I don't have perfect teeth, but I never sucked any of my fingers/thumbs or used a dummy, I just got the dodgy teeth gene.