I am a 40yo and have always had problems with my teeth. I was born with an underbite and had two surgeries (first one relapsed) to correct it. For the second surgery the doctor removed bone marrow from my hip to stack above my upper jaw to "lower" my upper teeth and make them more visible when I smile or talk. I also had braces for many years.
These surgeries were when I was 15 then 20.
Over the years my jaw has again shifted a bit and my body must have absorbed the bone marrow because my upper teeth are still hidden.
Because of the shift my molars no longer line up and that has resulted in pitting, (Since the molars now fit together differently) loss of enamel, and very sharp points on the molars.
Also my bottom teeth have worn the enamel off the backs of my front teeth.
What kind of procedures are available to me to 1. Replace enamel on chewing surfaces and 2. Make my upper teeth more visible?