Answer (1 of 8): A good dental filling can last even up to 30 or more years. However, do note that the composite filling can become stained or become more yellow with time. When this happens, people often inquire about the need for their replacement; it is evident in discussion threads on online
Brown Spots on Teeth: Causes, Prevention, and Removal
Is it normal for white composite tooth fillings to turn black? - Quora
Is it okay that I drank Coke around 2 hours after I got a cavity filling done? I'm freaking out. - Quora
Is front tooth filling noticeable? Because mine looks shadowy and I can't decide whether it got decayed again or it is just the filling. - Quora
My new dental fillings turned yellow after 3 days. What can I do about it? - Quora
How to Fix It & Find a Decaying Under Crown
Cranbourne Dentist: How To Prevent A Dental Filling From Falling Out?
There are dark dots/lines on the edges of my tooth fillings. I've had these fillings for ~6 years. The dentist never said anything when I had my checkups. Is this phenomenon normal? - Quora
Why Is My Tooth Turning Black?
Why Are Brown Spots Appearing Between My Teeth?
Is my tooth filling rotting since it's browning or is it discoloration from age? How long do tooth fillings last? - Quora
There are dark dots/lines on the edges of my tooth fillings. I've had these fillings for ~6 years. The dentist never said anything when I had my checkups. Is this phenomenon normal?
Brown Spots on Teeth (Causes, Prevention & Treatment)
Is it normal for white composite tooth fillings to turn black? - Quora