Efficacy of in-house clear aligner therapy mechanics on root torque: an in-vitro study

Figures & Tables

	1°	2°	3°	4°	5°
Group	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD	p*
Control	1.14 ± 0.85	1.66 ± 0.82	1.42 ± 0.74	1.32 ± 0.62	1.49 ± 0.42^ab	0.852
Buccal Power Ridge	1.40 ± 1.12	1.34 ± 1.02	1.32 ± 1.07	0.98 ± 0.53	1.07 ± 0.56^a	0.963
Buccal and PalatalPower Ridge	0.83 ± 0.40^A	1.16 ± 0.71^AB	1.49 ± 0.81^AB	2.04 ± 0.85^AB	2.15 ± 0.40^Bb	0.004*
Vertical Ellipsoid	1.22 ± 0.74	1.43 ± 0.76	1.33 ± 1.18	1.31 ± 0.80	1.59 ± 0.64^ab	0.644
Horizontal Ellipsoid	0.79 ± 0.70	1.25 ± 0.71	1.88 ± 1.12	1.56 ± 1.15	2.08 ± 0.96^ab	0.072
p	0.591	0.732	0.626	0.145	0.017*

	1°	2°	3°	4°	5°
Group	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD	p*
No Attachment	1.23 ± 0.69	2.12 ± 0.95^abc	1.64 ± 1.37	0.99 ± 0.60	1.78 ± 1.25	0.209
Buccal Power Ridge	1.20 ± 0.50^A	3.69 ± 1.43^Ba	2.88 ± 1.56^AB	1.86 ± 1.26^AB	3.10 ± 3.05^AB	0.015*
Buccal and PalatalPower Ridge	1.78 ± 0.92	0.94 ± 0.57^b	1.04 ± 0.62	1.76 ± 1.90	1.21 ± 1.15	0.506
Vertical Ellipsoid	0.90 ± 0.62	1.83 ± 1.34^abc	0.85 ± 0.76	1.86 ± 1.78	1.33 ± 1.31	0.278
Horizontal Ellipsoid	1.52 ± 1.00	1.24 ± 0.63^c	1.57 ± 0.89	1.10 ± 0.77	1.51 ± 1.30	0.870
p	0.297	<0.001*	0.034	0.698	0.324

	1°	2°	3°	4°	5°
	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD	p*
No Attachment	2.00 ± 1.11	1.36 ± 0.92	1.24 ± 0.95	1.23 ± 0.80	1.24 ± 1.08	0.630
Buccal Power Ridge	1.14 ± 0.67	1.27 ± 1.31	0.94 ± 0.67	1.80 ± 1.11	1.24 ± 0.73	0.486
Buccal and PalatalPower Ridge	0.91 ± 0.86	1.20 ± 0.88	1.15 ± 0.62	0.94 ± 0.48	0.99 ± 0.51	0.868
Vertical Ellipsoid	1.21 ± 0.89	1.18 ± 1.13	1.16 ± 0.95	1.37 ± 0.74	1.12 ± 0.65	0.916
Horizontal Ellipsoid	1.05 ± 0.65	0.89 ± 0.49	0.84 ± 0.77	0.93 ± 0.87	0.87 ± 0.45	0.903
p	0.175	0.870	0.885	0.278	0.896