Progress in Orthodontics

Table 2 Comparison of selected variables before and after maxillary posterior teeth intrusion

From: Prediction of changes due to mandibular autorotation following miniplate-anchored intrusion of maxillary posterior teeth in open bite cases

	Before intrusion		After intrusion		Difference
Variable (mm)	Mean	S.D.	Mean	S.D.	Mean	S.D.	P ^a
U6-PP	28.31	2.48	25.27	2.23	− 3.04	0.79	^**
Pg-VRL	44.87	2.39	47.29	2.12	2.42	0.19	^**
Me-HRL	106.85	2.51	103.60	2.50	− 3.25	0.77	^**
Pg′-VRL	73.72	1.32	76.18	1.08	2.46	0.28	^**
Me′-HRL	114.35	1.29	111.18	1.53	− 3.17	0.42	^**
Overbite	− 4.86	1.69	1.32	0.85	6.18	1.35	^**
Overjet	5.71	1.38	3.84	1.56	− 1.87	0.44	^*
Li-VRL	80.69	1.45	83.22	1.14	2.53	0.23	^**

^aPaired t test
*P ≤ 0.01; **P ≤ 0.001

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