Randomized controlled trial on the effectiveness of absorbable collagen sponge after extraction of impacted mandibular third molar: split-mouth design

Table 2 Assessment of clinical complications

Value	Time	Collagen sponge insertion	Control	Difference in difference	Lower 95% CI	Upper 95% CI	P value
VAS score	T1	1.42 (1.26)*	3.85 (2.43)	Ref
	T2	0.74 (0.93)*	1.73 (1.67)	−1.42	−2.39	−0.45	0.004
	T3	0.19 (0.40)	0.42 (0.85)	−2.19	−3.16	−1.23	< 0.001
Facial swelling (%)	T1	5.76 (11.63)	7.93 (12.28)
	T2	2.09 (8.63)	2.21 (8.79)
	T3	−0.81 (5.98)	−0.91 (6.44)

Abbreviations; T1, 1 week post-operatively; T2, 2 weeks post-operatively; T3, 14 weeks post-operatively; CI, Confidence Intervals
Results are shown as mean (SD)
^*Indicates significant group difference (P < 0.05) between 2 groups

ISSN: 1472-6831