If gums whiten or sting, eliminate gel, rinse
https://www.instapaper.com/read/2002302928
If gums whiten or sting, get rid of gel, rinse, and use vitamin E oil; decrease gel volume next time and ensure trays aren't striking soft tissues.
If gums whiten or sting, get rid of gel, rinse, and use vitamin E oil; decrease gel volume next time and ensure trays aren't striking soft tissues.