I used to work for a children's dentist and I've seen it really bad a handful of times. You need to make sure that you are only putting milk in the bottle -- NO juice, soda Gatorade,etc...I've seen it all! And don't put them to bed with the bottle because when a baby falls asleep, they do not swallow. That means the puddle of milk stays in their mouth, and on their teeth, all night long until they wake up enough to swallow.
If your child has this, take him/her to a CHILDREN'S dentist. They will know what to do better than a general dentist and they have better ways of dealing with the little ones. If you have more questions, you can message me, but this will only get worse if you do not take care of it!
at 11:11 AM on Oct. 30, 2008