When do i know that i should have my dental bonding replaced? i've had some bonding on my front teeth for about five years now. i know you can expect them to last for around seven years, and i think mine still look fine, but i'd like to know if there's an

The : The life expectancy of a bonding can vary depending on the application, the material and your personal home care. Although you are using seven years as a guideline, many bondings can last well beyond that time. If you feel as though they are still cosmetically pleasing and your dentist tells you that they are functionally intact, then they are fine and don't need replacement.

If : If you notice stains along the edges or other discolorations, it may mean that the bond is breaking down or leaking. Other bonding failures come in the form of chipping or wearing down of the material. Some bonding cases have lasted many years. While the surface shine had been lost, or the teeth appeared smoother than desired, the material was/is still functional. If the esthetics don't bother you, then you should be fine. Most bonding cases fail esthetically before they fail functionally.