It doesn’t, but there might be variation between people? For me the toothpaste (sensodyne novamin) has a slightly crunchy feel, and yeah, the smooth glassy coat

It doesn’t, but there might be variation between people? For me the toothpaste (sensodyne novamin) has a slightly crunchy feel, and yeah, the smooth glassy coating. https://www.amazon.com/Sensodyne-Repair-Protect-Whitening-Toothpaste/product-reviews/B008VPSTOA/ref=cm_cr_arp_d_viewopt_kywd?pageNumber=1&filterByKeyword=Smooth https://www.amazon.com/Sensodyne-Repair-Protect-Whitening-To... I also use an electric toothbrush, so that might make a difference.