Gee, I guess I am a lucky person then. Not only did my doctor do elective surgery on my gums, which by the way he opted to say he was doing because of the paranoia about gum surgery in the first place, well, okay, he did give me a couple of amalgam fillings, which are doing alright anyway and he then replaced them. All along when he was fixing my mouth, he kept on saying something to the effect of “glass ionomer”. Then he said when I get rich he will change all of the fillings to “glass”. So far, I haven’t had any problems, although whenI was diagnosed with diabetes, I did have a powerful toothache. Also, what my dentist did was to make partials that were permanent. These are made up of plastic and a really hard type of steel. If you need crowns, may I suggest to opt for the plastic ones rather than the porceline ones (forgeot how to spell, one oment please).. Well, that’s it so far. My dentist is really good to Gd patients. He will actually coax you into the chair and then you have to listen to him and his unusual wit.
Glass Ionomers are usually used as a coating (like a barrier) between the filling and the tooth, if I remember correctly from my dental assistant days, or as a type of cement.
I would never discourage anyone from getting Porcelain Crowns! A persons tolerance for any crowns lies in the base metal used to support it. The standard material for a Crown now is a “semi precious” metal coated with porcelain for the color matching. If someone is concerned about allergic reactions, they can consider a more expensive metal (you can request this). Have seen some rare reactions to the metals and they can be quite bad.
Don’t like having mercury in my mouth either! My brother in law/dentist I worked for rarely used the stuff at all.