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

https://blogfreely.net/dernesvhbz/the-reality-about-charcoal-tooth-paste-does-it-really-whiten

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