Lower sensitivity during whitening with desensitizing gels or toothpaste consisting of potassium nitrate or fluoride
https://s3.amazonaws.com/mypcrn/video/teeth-whitening-gilbert-qt8p7t.html
Minimize level of sensitivity throughout whitening with desensitizing gels or toothpaste including potassium nitrate or fluoride, and follow day of rest in between sessions if needed.