I have a 5 teeth porcelain bridge that is turning grey every month even after being polished. I have had this in with temp cement for approx 9 months as I wasn’t 100 percent happy with teeth. Why is the colour going grey? I also had my upper frenum shortened 1 year ago as it was pulled to one side but not under my teeth I thought this was best to rectify but did now know that it is a tissue that holds the top lip down. I was horrified after procedure to find my top lip felt loose and moves about when I talk. I had to have more porcelain added to my teeth to give my lip support. Can this frenum be replaced again or will my top lip begin to droop? I would like to have implants buts could never afford to have this treatment. My worst fear is I will loose my bridges and have to have false plate which I could not cope with.