So these are teeth. There are cute little fangs in there. If that is not your bag, I make these normie ones without cute little fangs. They are exactly the same (because I am lazy) but without pointy canines.
I was at a bit of a loss as to how I should show off these teeth. Taking pix of poses is a bit of a chore as it is hard to do so I made the following video in lieu of a gratuitous promo shoot. In it I run through the default avi emotes (Ha, LOL, Smile) and several more included in the 15 Funny&Cute Faces By Meikin emote pack (not included). No emotes are included; these merely replace your existing IMVU Inc. horse teeth.

Why did I make these?

These replace the entire inside of your mouth so no more hobo teeth and no more, "I have mono," coloured tongue. These teeth have only been tested with the heads and accessories which I own. They are not compatible with male avatars. They are also not compatible with the stock bobbleheaded-looking avatar. Beyond that, I can not speak to their compatibility or incompatibility with anything. I would strongly advise testing these thoroughly with whatever head or heads you plan on using them in. So, now, more than ever...
Try it before you buy it!
♥ Izzy