Table 3: Compatibility of severity of malocclusion between the 3 groups (Chi square test).

Class II Groups	1/2-cusp	3/4-Cusp	Full-Cusp	Total
1- MPA	7 (29.17%)	5 (20.83%)	12 (50%)	24 (100%)
2- Jasper Jumper	4 (16%)	9 (36%)	12 (48%)	25 (100%)
Control	10 (45.45%)	5 (22.73%)	7 (31.82%)	22 (100%)
Total	21 (29.57%)	19 (26.76%)	31 (43.67%)	71 (100%)
X2= 5.71	DF=4			P=0.221