Table 2.

Increase in root length in millimeters and percentage of the PRP and BC groups in the four evaluation periods

	PRP group (mean ± SD)	BC group (mean ± SD)	p value
3 months (mm, %)	0.225 ± 0.19 (1.52% ± 1.43%)	0.133 ± 0.217 (0.967% ± 1.75%)	0.006**
6 months (mm, %)	0.557 ± 0.23 (3.7% ± 1.43%)	0.273 ± 0.29 (1.92% ± 2.32%)	0.0028**
9 months (mm, %)	0.996 ± 0.35 (6.6% ± 2.4%)	0.449 ± 0.35 (3.11% ± 2.8%)	0.001**
12 months (mm, %)	1.48 ± 0.37 (9.88% ± 2.85%)	0.68 ± 0.44 (4.68% ± 3.45%)	0.001**

^*Significant at p value <0

^**Highly significant at p value <0.05