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

https://www.mediafire.com/file/jczni4ly0nc0ib5/pdf-94839-21658.pdf/file

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