Skip to main content

Table 3 Comparability among groups regarding severity of the initial anteroposterior relationship of dental arches (Chi-square test)

From: Treatment effects of the Jasper Jumper and the Bionator associated with fixed appliances

Severity of class II G1 Jasper (n = 25) G2 Bionator (n = 30) G3 Control (n = 22) P
¼ Class II 0 0 4 (18%) 0.0028 χ 2 = 19.9793
½ Class II 4 (16%) 9 (30%) 11 (50%)
¾ Class II 9 (36%) 9 (30%) 4 (18%)
Complete class II 12 (48%) 12 (40%) 3 (14%)
\