From: Are there differences in treatment effects between labial and lingual fixed orthodontic appliances? A systematic review and meta-analysis
U1-SN
L1-MP
U1-L1/IIA
SN-MP
SNB
Me-N
Fulmer and Kuftinec 1989a [40]
NA
+
Gorman and Smith 1991 [9]
–
Gimenez et al. 2010a [18]
Soldanova et al. 2012 [7]
Wang et al. 2014 [31]
Deguchi et al. 2015 [8]
Bock et al. 2016a [44]