Q. Hello, I recently finished Inviseline treatment and my upper incisor had a ‘button’ on it for positioning. When the orhtodontist removed the button she got a bit overzealous and took off enamel. It was painful when that happened and the tooth has been very sensitive to cool air ever since. I can feel that the face of the tooth is indented and its surface is not smooth like the other teeth. Also this tooth has remained slightly loose even after 3 months in a retainer. Is there any treatment for this? A sealant of sorts? Why would the tooth stay loose this long?,