1. Department of Oral Biology, UMKC School of Dentistry, University of Missouri–Kansas City, Kansas City, Missouri 64108‐2784
2. Department of Materials Science and Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409
3. Mo‐Sci Corporation, Rolla, Missouri 65401
4. Center for Bone and Tissue Repair and Regeneration, Missouri University of Science and Technology, Rolla, Missouri 65409