does a dentist have the right to cut a chunk out your gum when removing a crown he says i hope it heels
The dentist has the right to do it if you give permission to. A dentist can't literally hold you down and do anything to you that you don't give consent to do. A dentist may remove the gum if it interferes with the crown treatment and yes, the gums will grow back. You may want to discuss the specifics with your dentist.