Hi Marcus. I have a lower 3 tooth bridge. I have had it in place for over 20 years now and it recently became loose on one side. I had a recent X-ray and my dentist told me that the molar which is anchoring it in has lost a lot of tooth structure. This tooth already has a root canal on it. He said by the X-ray it looks like too much tooth has been lost and recommends leaving one tooth of the bridge in place and removing the other 3 crowns of the bridge as well as the molar that has decayed away. Have you ever seen this situation and is there anything else that can be done to preserve entire bridge? Thank you.