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. 2015 Oct 20;16(10):24946–24964. doi: 10.3390/ijms161024946

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© 2015 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Decalcified toluidine blue staining of extraction sockets following the different 12-week treatments: (a)The magnifying control group; (b) Bio-Oss group; (c) BMP2 group; (d) APN group; (e–h) represent the integral extraction socket of control group (e); Bio-Oss group (f); BMP2 group (g); APN group (h). The black square represents the magnifying area. The dashed line represents the extraction sockets. Magnification: upper panel 40×; lower panel 4×. n = 4 for each group.