[Retracted] Effects of Low-Level Laser Therapy on Osseous Defects Distal to Mandibular Second Molar after Extraction of Impacted Third Molar

Table 1

Comparison of bone increment in M2 distal areas at different periods after M3 extraction.

Group		Preoperative bone loss	Postoperative 3 M bone increment	Postoperative 6 M bone increment
Experimental group	30
Control group	29
value		0.464	3.007	1.957
value		0.644	0.004	0.055