I can't seem to get a break. I'm already having issues with two other teeth. Wednesday night, I attempted to take a mold for one of those over the counter mouth guards. The endodontist said it would be ok. Well, when I bit into it, I felt a dull pain on tooth #3. Two days later, the pain is still there. I figured I just bruised the ligament. I inspected the tooth today and it looks like there is a crack. Does anyone see what I see? Thanks. I cannot see the dentist until Wednesday.