Teeth haven't yet a material with lightsphere. Done, with a shiny ivory lightsphere. I spell this illustration, because I have not a special lightsphere upload feature. You put illustration in your : Windows >Program File (x86) >Data >Lightsphere. And the Normal_teeth >.thumb and .mhmat in the same way but in the Teeth folder. You need also to save it in your MH document folder for avoid it erase in the next version of MH !