A.N.
You are right in asking your dentist's opinion. It may not be a big deal, and she may grown out of it. However, I think the hereditary issue is definitely something you need to include in your discussion with the dentist. It will most likely just be something to be monitored for the time being -- just make sure you are bringing her to the dentist at least once a year (every 6 months is better) and leave the decision up to the professionals. Good luck.