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

https://www.mediafire.com/file/e6w51x0ju7vcvft/pdf-20600-77558.pdf/file

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