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. 2011 Oct 31;41(5):218–226. doi: 10.5051/jpis.2011.41.5.218

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Copyright © 2011 Korean Academy of Periodontology

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/).

PMC Copyright notice

Illustration of the bone volume (%) measurement of each group at 2 and 4 weeks according to the lower threshold level. The bone morphogenic protein-2 (BMP-2) group showed a sharper decline as the threshold level increased at 2 weeks than the other groups, and the difference was significant (repeated measures analysis of variance [ANOVA], statistically significant, P<0.001). This pattern was similar at 4 weeks (repeated measures ANOVA, statistically significant, P<0.001). The unit of the threshold level was the grayscale index. BMSCs, bone marrow stromal cells.