My boy sometimes will fall asleep after latch at night. I didnt get to clean his teeth. Will it cause tooth decay?

Well, so far so good for my kids. Breastmilk is still acceptable cos no sugar ... lol If it is formula milk, yes, you will have to make it a habit for them to brush their teeth after milk time at night to prevent tooth decay. My #3 and #4 still latch and they are fine with beautiful teeths. My #3 is 2 yrs old and #4 is 9 mths old.