After the decay was found, an x-ray was taken of the tooth (which took three tries because of the difficulty of getting a good view of the tooth
). The x-ray showed quite a lot of decay
inside the tooth
, but there is no decay
on the outside. My dentist said that is pretty rare, but can happen due to bacteria getting inside the tooth. I have always taken good care of my teeth, and the others are in good shape, so I'm really surprised and upset that this has happened.