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

https://www.mediafire.com/file/zpn50jpfsi4qpay/pdf-84084-96019.pdf/file

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