I read so much conflicting information on this. I have three children, the eldest self weaned age 3, middle child I reduced to one feed before bed and stopped age 4 because I decided it was time, and my youngest is almost 3 and still breastfeeds. The eldest children had clear dental checkups last year so breastfeeding at night (and after brushing teeth) didn’t cause any issues for them, but the dentist told me not to breastfeed after brushing teeth as it pools in the mouth. Now, I know this is true for bottle milk but I have always thought because of the mechanics of breastfeeding and the nipple actually being quite far back in the mouth that breast milk doesn’t pool?
I suspect my youngest has weak enamel as I’ve noticed brown spots on the centres of her teeth (nothing at the gum line) so if breast milk does cause decay I need to go cold turkey and make sure she is only having her breastfeed before bedtime brushing.
I try really hard to look after my kids teeth, they only have access to cows milk or water, juice is only for Christmas or a birthday. I try to limit grazing but my eldest eats like there’s no tomorrow (he’s about to turn 7 and is 135cm tall, growing and eating constantly!) and the younger two copy and wants snacks too. puddings are usually plain yoghurt with fruit and a drizzle of honey but it’s hard to avoid starchy food and I tell them if they’re gonna have something that sticks to teeth have it with a main meal not a snack. Always try to direct them to things like carrots and cheese for snacks but not always successful! I am very strict that they have their teeth brushed twice daily, make sure they allow half an hour to let their teeth settle before brushing so I’m not too concerned about everything else but am very concerned if I’m damaging my youngest teeth with breast milk!!