Soft tissue swelling incidence using demineralized bone matrix in the outpatient setting

Table 2 Showing preoperative and postoperative visual analogue scales and neck disability index scores

	Preoperative VAS	Postoperative VAS	Intragroup P value	Preoperative NDI	Postoperative NDI	Intragroup P value
Group 1	7.4 ± 0.2	4.0 ± 0.2	0.001	46.9 ± 1.9	26.1 ± 1.2	0.001
Group 2	8.9 ± 1.5	5.3 ± 0.3	0.03	46.2 ± 2.6	33.4 ± 2.4	0.002
Intergroup P value	0.75	0.62		0.289	0.34

VAS: Visual analogue scales; NDI: Neck disability index.