Figure 7. Comparison of periodontal tissue formation. (A) The defect height did not differ significantly across the 3 groups (P=0.84). (B) New bone formation did not differ significantly across the 3 groups (P=0.058). However, the Tukey post hoc test revealed a significant difference between the CTL and COL/CELL groups (P=0.046). (C) New cementum formation differed significantly across the 3 groups (P=0.001).

CTL group: sham control group, COL group: collagen matrix group, COL/CELL group: PDL progenitor cells with collagen matrix group.

^a)P<0.05.