Table 1.

Experimental groups used for in-vivo calvarial defects

Group	Treatment
1. Control	Serum-free media (SFM)
2. Bone morphogenetic protein 2	SFM + 2 nM
3. Calcium sulfate	SFM + 10 mM
4. Calcium sulfate	SFM + 20 mM
5. Calcium sulfate	SFM + 50 mM