Not enough information. Try submitting some photos so we can see what the bite looks like on the sides and a view each the top and bottom teeth so we can see what the problem is a bit better. Might be short, might be long, depends on where the bite is now.
These answers are for educational purposes and should not be relied upon as
a substitute for medical advice you may receive from your physician. If you
have a medical emergency, please call 911. These answers do not constitute
or initiate a patient/doctor relationship.