I've thought about this for a bit now and will most likely make the upper and lower teeth and the tongue(*) a separate body part each. More specifically, I'm thinking about introducing a body part 'jaw' with the lower teeth and gums as their geometry. The 'mouth open' morph will be a JCM following the jaw movement, not the other way round. If you make an alternative morph, you should be able to inject it into the existing channel. But I'm no expert on cr2 magic, so maybe there's some flaw in my glorious plan that I'm not aware of yet.

The teeth come at only 10% of the total polygon weight, so making them a prop to keep the mesh size down doesn't seem very effective. Remember that I'm intending to make the lo-res version with just a little more than 10k polys fully functional, which should make her ideal for background figures and such. Also remember that I'm doing all my modeling on that lo-res version, so you don't lose any detail, just Poser doesn't quite know how to render it nicely.

Momodot, you're right. I looked at my own teeth for reference, which isn't fair, because I'm definitely more long in the tooth than Antonia is meant to be.

("long in the tooth" - I'm killing myself here.)

EDIT: (*) Make that two bodyparts for the tongue, actually: Tongue and TongueTip.

-- I'm not mad at you, just Westphalian.