Cervical vertebral maturation stages (CVMS) of the extraction group and the non-extraction group.

Table 1: Cervical vertebral maturation stages (CVMS) of the extraction group and the non-extraction group.

CVMS	Pre-treatment				Post-treatment
	Extraction group		Non-extraction group		Extraction group		Non-extraction group
	Frequency	Percent	Frequency	Percent	Frequency	Percent	Frequency	Percent
1	-	-	2	6.7	-	-	-	-
2	14	46.7	4	13.3	-	-	-	-
3	5	16.7	13	43.3	3	10	3	10
4	10	33.3	11	36.7	15	50	3	10
5	1	3.3	-	-	12	40	24	80
Total	30	100	30	100	30	100	30	100