AGE RESTRICTIONS FOR IMPLANTS Unfortunately, it is the younger age group that faces restrictions when it comes to dental implants. The procedure requires a fully developed jaw, so generally a dental implant patient must be at least 17 or 18 years old, but this is not a set number. Can a child get dental implants? While dental implants are a completely safe option for replacing missing teeth in adults, it is not an option for children below a certain age. If a dental implant is placed in a young patient whose jaw hasn't finished growing, it could impede jaw growth and prevent other teeth from coming in naturally.