Dental fillings are designed to be durable, but they do not always last a lifetime. Over time, fillings can become worn, cracked, or loose due to the constant pressure of chewing. When a filling no longer fits tightly against the tooth, it is described as 'leaking'. This allows bacteria and food particles to seep underneath the restoration, where they can cause new decay.
In many cases, a leaking or broken filling does not cause immediate pain. However, if left unaddressed, the decay can reach the deeper layers of the tooth, potentially leading to an infection or the need for a root canal. Regular dental examinations are vital because a dentist can identify these issues early using visual inspection or X-rays.
Replacing a filling involves removing the old material and any new decay that has formed. The dentist then cleans the area and places a new, secure restoration. Modern materials often allow for a more conservative repair, preserving as much of the remaining healthy tooth as possible. This helps maintain the structural integrity of the tooth for the future.
To help your fillings last longer, maintain a thorough oral hygiene routine and avoid chewing on very hard items. If you feel a sharp edge with your tongue or notice sensitivity around an old filling, you should visit a registered dentist promptly. Timely replacement is key to preventing more complex and expensive dental problems.