The effects of corticotomy and piezocision in orthodontic canine retraction: a randomized controlled clinical trial

Fernandes, Larissa Salgado da Matta Cid Pinto; Figueiredo, Daniel Santos Fonseca; Oliveira, Dauro Douglas; Houara, Ricardo Gontijo; Rody, Wellington José; Gribel, Bruno Frazão; Soares, Rodrigo Villamarim

doi:10.1186/s40510-021-00367-3

Progress in Orthodontics

Table 4 Comparison of incisal and cervical accumulative moved distances (mm) between sides over time - group 3

From: The effects of corticotomy and piezocision in orthodontic canine retraction: a randomized controlled clinical trial

Source		Incisal					Cervical
Source		Mean	S.D.	Exp (β)	C. I.	P value	Mean	S.D.	Exp (β)	C. I.	P value
1 week	Corticotomy	0.40	0.16	1.00	-	-	0.13	0.09	1.00	-	-
1 week	Piezo	0.51	0.30	1.11	[0.89; 1.37]	0.349	0.15	0.09	1.13	[0.84; 1.51]	0.422
2 weeks	Corticotomy	0.54	0.22	1.00	-	-	0.17	0.14	1.00	-	-
2 weeks	Piezo	0.60	0.29	1.09	[0.88; 1.34]	0.441	0.20	0.13	1.10	[0.83; 1.46]	0.513
4 weeks	Corticotomy	0.89	0.39	1.00	-	-	0.29	0.15	1.00	-	-
4 weeks	Piezo	0.97	0.46	1.04	[0.85; 1.27]	0.679	0.31	0.19	1.04	[0.80; 1.35]	0.754
6 weeks	Corticotomy	1.29	0.46	1.00	-	-	0.40	0.18	1.00	-	-
6 weeks	Piezo	1.32	0.64	1.00	[0.83; 1.21]	0.982	0.40	0.24	0.99	[0.78; 1.26]	0.929
8 weeks	Corticotomy	1.77	0.68	1.00	-	-	0.62	0.24	1.00	-	-
8 weeks	Piezo	1.55	0.64	0.96	[0.80; 1.16]	0.690	0.59	0.32	0.94	[0.75; 1.18]	0.585
10 weeks	Corticotomy	2.20	0.87	1.00	-	-	0.83	0.31	1.00	-	-
10 weeks	Piezo	1.98	0.87	0.93	[0.77; 1.11]	0.399	0.71	0.39	0.89	[0.72; 1.11]	0.299
12 weeks	Corticotomy	2.83	0.92	1.00	-	-	1.12	0.54	1.00	-	-
12 weeks	Piezo	2.35	0.89	0.89	[0.75; 1.06]	0.194	0.91	0.55	0.85	[0.68; 1.05]	0.126
14 weeks	Corticotomy	3.33	0.88	1.00	-	-	1.44	0.46	1.00	-	-
14 weeks	Piezo	2.65	0.99	0.85	[0.72; 1.02]	0.080	1.02	0.47	0.80	[0.64; 1.00]	0.048*
16 weeks	Corticotomy	3.76	1.00	1.00	-	-	1.67	0.41	1.00	-	-
16 weeks	Piezo	3.00	1.08	0.82	[0.69; 0.98]	0.029*	1.22	0.55	0.76	[0.61; 0.96]	0.019*
18 weeks	Corticotomy	3.96	0.68	1.00	-	-	1.94	0.55	1.00	-	-
18 weeks	Piezo	3.16	1.19	0.79	[0.66; 0.94]	0.010*	1.30	0.69	0.72	[0.57; 0.92]	0.008*
20 weeks	Corticotomy	4.22	0.95	1.00	-	-	2.05	0.60	1.00	-	-
20 weeks	Piezo	3.57	1.21	0.76	[0.63; 0.91]	0.003*	1.53	0.78	0.69	[0.53; 0.89]	0.004*
22 weeks	Corticotomy	4.41	0.92	1.00	-	-	2.33	0.71	1.00	-	-
22 weeks	Piezo	3.48	1.08	0.73	[0.60; 0.88]	0.001*	1.68	1.00	0.65	[0.49; 0.86]	0.003*
24 weeks	Corticotomy	4.58	0.91	1.00	-	-	2.58	0.66	1.00	-	-
24 weeks	Piezo	3.92	0.83	0.70	[0.57; 0.85]	0.000*	2.03	0.72	0.62	[0.45; 0.84]	0.002*

p values were obtained by marginal log-linear regression. Level of significance = 5%; *, significant (p < 0.05); SD standard deviation, CI confidence interval (95%), Exp. exponential

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