Will you be euthanizing the animals or letting them go? If they're being euthanized you can send the teeth (usually the canines) to Matson's Lab (
http://www.matsonslab.com/ ), in Montana. He'll age them using cementum analysis, which is generally the most accurate and cost efficient method currently available.
This is where all of my otter teeth are going, and also where many of the states send their project teeth. I know for a fact that NC sends their bear teeth there. For large orders like a study normally has, it'll range somewhere around $4/tooth. Hope this helps.