Effects of surgically assisted rapid maxillary expansion on mandibular position: a three-dimensional study

Progress in Orthodontics

Table 4 Mean and standard deviation of mandibular angle observed at the three time-point evaluations. Results for repeated measures ANOVA

Mandibular angle	T1		T2		T3		p
Mandibular angle	Mean	SD	Mean	SD	Mean	SD	p
Ipsilateral FMA	19.74^a	4.73	20.95^b	4.79	19.99^a	4.60	<0.001
Contralateral FMA	19.57^a	4.55	20.30^b	4.76	19.67^a	4.80	0.003

Different superscript letters show statistically significant differences
FMA mandibular plane angle, T1 preoperatively, T2 immediately after expansion, T3 6 months after expansion, SD standard deviation