All my filling were placed when I was a teenager. 20+ years ago. I have no idea who the dentist was. The material used was just good old silver/mercury fillings.

My new dentist who is removing the old mercury is the one telling me that 2 of the 4 removed fillings did not have liners.

I understand that our bodied are exposed mercury vapors from the fillings.

So if a tooth had a liner would the tooth and tissues under the tooth be protected from mercury exposure? Thus limiting my exposure to mercury on some sort of level.