Figure 6

1H solid-state NMR spectra of the mouse tooth sample recorded at a magnetic field of 17.6 T (a) without sample spinning and (b) with MAS at a spinning frequency of 10 kHz. The asterisks indicate spinning sidebands. (c,d) 1H MAS selective spin echo MAS spectra of the (c) aliphatic protons and (d) hydroxyl groups, recorded with an echo time of 5.4 ms and using a refocusing R-SNOB pulse of 3 ms duration (10 kHz spinning rate).