Anticipate mild
https://telegra.ph/In-Office-vs-At-Home-Teeth-Whitening-Your-Guide-to-Expert-Teeth-Whitening-Gilbert-and-Affordable-Teeth-Whitening-Gilbert-AZ-04-14
Expect moderate, momentary sensitivity for a day or 2 after sessions; utilizing a soft-bristled brush and lukewarm water can make post-whitening care more comfortable.