RileyS (and all who were wondering)
a few things involved in adding your own tooth library to 3shape. step number 1 obviously, will be to wax your anatomy in the way and manner you prefer to use, a la nuances and such which will distinctly define your lab's work.
once the waxing is done, you'll be adding your wax to your library folder in the following manner.
1. you'll open ScanItLibrary and you will hit the button shaped like the d700 scanner. this will open a menu for you to create your new library with its own name. at this stage you can also subdivide your library into anterior and posteriors if you wish, so you can mix and match (if you find your existing libraries adequate for certain purposes for example).
2. the " + " button will open the control panel, where you will hit the " + " button to add a new library to the list. rename as applicable.
3. tick the boxes where you wish the library to be used, i.e. you can tick the boxes and make your new library one for Veneers only, if you only tick the Veneers and inlays box.
once saved, you can switch back to the ScanItLibrary window, check the teeth which apply, and proceed with scanning.
4. this is the fun bit. now you must play with your scan. it is at this point you will morph, add, subtract or otherwise edit your scan to be hole-free and correct. follow the steps on screen. ensure the alignment of the model on screen shows the 3 directional arrows of occlusion proximal and facial to point in the correct directions for your anatomy. if they do not, use your rotation buttons and tinker. the Scale window will denote the actual measurements of the current model, but remember you will be able to stretch this anatomy for future cases so making sure the current model is accurate really isnt too much of a big deal. the Cut bottom will allow you to mark where the margin of this particular anatomy will typically lie. mark it all the way around. once all this is done, you'll end up adding morphing points and boundaries. if you set custom point groups you can ensure that certain anatomy points are never lost when you morph your crowns in dentaldesigner. once this stage is finished, this tooth will be ready to use in your next design.
good luck. and please, this is just a quick guide that i pulled from the User Manual i got with my d710 purchased in 2009 (pages 160-166). a pdf of the user manual is very likely an easy thing to get (found a online copy:
http://www.wieland-dental.de/uploads/tx_pxwldownloads/BA_DentalDesigner_e_neu.pdf )