http://img162.imageshack.us/img162/6254/81567782os1.png
the black is a mouth, the semi transparent white is teeth. I'm trying to make a clipping mask so that the white shows only in the black (i.e. like a photoshop clipping mask would do), but when I do it, it just combines the two paths basically and shows only the teeth like so
http://img162.imageshack.us/img162/4712/39173352hi0.png
help :(