Table 4.

Meta-analysis outcomes comparing 3% mepivacaine with 2% lidocaine with 1:100,000 adrenaline in pain ratings of injection phase and postinjection phase

	Time	Number of studies included	Odds ratio (95% CI)	P	Heterogeneity (I2) %
Injection phase	Needle insertion	416., 20., 23., 28.	0.50 (0.26 0.96)	0.04	0
	Needle placement	220., 28.	1.20 (0.67 2.15)	0.55	0
	Solution deposition	516., 19., 20., 23., 28.	0.50 (0.29 0.87)	0.01	0
Postinjection phase	Day 0	419., 20., 23., 28.	1.00 (0.53 1.89)	1.00	0
	Day 1	419., 20., 23., 28.	0.78 (0.39 1.56)	0.48	0
	Day 2	419., 20., 23., 28.	1.86 (0.61 5.73)	0.28	0
	Day 3	419., 20., 23., 28.	1.00 (0.22 4.48)	1.00	0