Research Article

Guided Bone Regeneration Using Collagen Scaffolds, Growth Factors, and Periodontal Ligament Stem Cells for Treatment of Peri-Implant Bone Defects In Vivo

Figure 4

Histological specimen (implant with collagen/hydroxylapatite/β-tricalcium phosphate scaffold; toluidine blue, original magnification ×10) showing the calculated parameters: BIC (green), VBA (yellow), and NBH (turquoise).