Table 4 Compatibility between experimental groups in relation to initial severity of 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) | P |
|---|---|---|---|
¼ Class II | 0 | 0 | 0.4769 χ 2 = 1.4808 |
½ Class II | 4 (16%) | 9 (30%) | |
¾ Class II | 9 (36%) | 9 (30%) | |
Complete class II | 12 (48%) | 12 (40%) |