I had a pretty bad fall and have broken my front tooth in half leaving the nerve exposed. I had the nerve covered at a dentist but the covering has come undone & I will need to have it done again. I want to ask what my options are to restore this tooth. I was told that if the nerve survives I could have the tooth filled in with composite resin. But if the nerve dies then I will need to have a root canal and a crown fitted. I want treatment asap & I would still want to wear my invisalign after.