If you clench or grind, discuss it before whitening; enamel wear and exposed dentin can heighten level of sensitivity

https://milowbea115.theburnward.com/foods-that-spot-your-teeth-and-how-to-combat-them

If you clench or grind, discuss it before whitening; enamel wear and exposed dentin can increase sensitivity, requiring customized protocols and gentler gels.