Fillings are intended to “fill in” the gap left by a cavity. However, a cavity can form underneath the filling for various reasons.
– Damaged Filling: Cracks and other damage can occur over time.
– Bad Seal: If the filling was badly sealed, there will be gaps for bacteria to populate.
– Tooth Grinding: Grinding the teeth can wear down fillings and create gaps.
It is a fact that “fillings need to be replaced eventually” and they should be checked at regular intervals by your dentist for signs of damage. Taking good care of your teeth is vital in avoiding cavities and fillings and you can read more at https://yourdentalhealthresource.com/can-i-get-cavities-under-a-filling/.