My veneer popped off a few weeks ago and then was rebonded wrong. It then broke off in two and the dentist glued both pieces on,. then one broke off . At the time the dentist said the brown was stain around the tooth. Im looking for a new dentist to help me fix this. But im not sure if this is decay or stain ? there is a lot of glue on the tooth, and then theres a dark brown spot . A small piece of came off today too, I think it was white glue, then I noticed the brown. Can this be fixed still ?