Table 3.

Amount of Achieved Expansion Movement and Efficiency of Bodily Expansion Movement for Unilateral Maxillary First Molar

Variable	Mean	SD	Maximum	Minimum
Achieved expansion movement
Crown	1.06	0.51	2.07	0.51
Root	0.29	0.36	1	-0.7
Efficiency of bodily expansion movement	36.35	29.32	106.54	-35