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

https://telegra.ph/Why-Specialist-Whitening-is-Safer-for-Your-Enamel-04-18-2

If you clench or grind, discuss it before whitening; enamel wear and exposed dentin can heighten level of sensitivity, needing personalized protocols and gentler gels.