Table 6.

Bone healing of CGF group and control group at 3 and 6 months after operation

Group	Diameter of periapical lesion	Healing of alveolar bone
	(in millimeter)	After 3 months	After 6 months
CGF group	15.69 ± 4.416	1.12 ± 0.326	1.00 ± 0.00
Control group	15.62 ± 4.891	1.65 ± 0.485	1.08 ± 0.272
T-test	0.060	4.698	1.443
P value	0.953	0.01	0.155

Remarks: When the data were recorded, the diameter of periapical lesion was expressed as the maximum diameter (length*width). 1 represented bone healing and 2 represented no significant change in periapical lesions