Effect of Low-Intensity Pulsed Ultrasound (LIPUS) on Alveolar Bone during Maxillary Expansion Using Clear Aligners

Table 2

Difference in bone height for clear aligner (control) and LIPUS with clear aligner.

Tooth number	Clear aligner (control)				LIPUS with clear aligner
	BH before	BH after	Mean difference (SD)	value	BH before	BH after	Mean difference (SD)	value
Rt second molar	1.70	2.04	-0.34 (0.34)	0.017	1.48	1.80	0.22 (0.39)	0.03
Rt first molar	2.09	2.31	-0.23 (0.30)	0.032	2.14	1.62	-0.48 (0.98)	0.05
Rt second premolar	1.21	1.38	-0.2 (0.15)	0.01	1.41	1.36	0.03 (0.81)	0.88
Rt first premolar	2.46	2.84	-0.38 (0.67)	0.126	2.445	1.83	-0.61 (1.43)	.086
Rt canine	2.17	2.38	-0.21 (0.25)	0.036	1.79	1.56	-0.24 (1.03)	0.34
Lt second molar	1.93	2.01	0.08 (0.04)	≤≤0.0011	1.44	1.81	0.38 (0.52)	0.01
Lt first molar	2.04	2.46	-0.42 (0.55)	0.052	1.82	1.49	-0.32 (1.00)	0.19
Lt second premolar	1.40	1.44	-0.03 (0.17)	0.592	1.27	1.08	-0.19 (0.97)	0.41
Lt first premolar	2.37	2.97	-0.59 (2.02)	0.404	2.54	1.94	-0.59 (1.55)	0.12
Lt canine	2.71	2.65	0.06 (1.04)	0.864	1.99	1.91	-0.1 (0.76)	0.61