Effect of micro-osteoperforation on the rate of canine retraction: a split-mouth randomized controlled trial

Progress in Orthodontics

Table 1 The total distances moved by the canine and the anchorage loss in the MOP and control sides (paired sample t test)

	CBCT measurement	Mean ± SD (mm)	Mean difference (MOP -CON)	SD	95% confidence interval of the difference		P value
	CBCT measurement	Mean ± SD (mm)	Mean difference (MOP -CON)	SD	Lower	Upper	P value
Total distances moved by the canine (mm)	Can-tip-FP (MOP)	3.34 ± 2.28	0.06	0.72	− 0.33	0.44	0.75764	P > 0.05 NS
	Can-tip-FP (CON)	3.29 ± 2.39	0.06	0.72	− 0.33	0.44	0.75764	P > 0.05 NS
	Can-C-FP (MOP)	2.13 ± 0.75	0.37	0.63	0.02	0.71	0.04121	P < 0.05 S
	Can-C-FP (CON)	1.76 ± 0.91	0.37	0.63	0.02	0.71	0.04121	P < 0.05 S
	Can-apex-FP (MOP)	1.51 ± 0.95	0.47	0.56	0.17	0.77	0.00419	P < 0.01 HS
	Can-apex-FP (CON)	1.04 ± 0.87	0.47	0.56	0.17	0.77	0.00419	P < 0.01 HS
Anchorage loss (mm)	Mol tip-FP (MOP)	− 0.45 ± 0.59	− 0.18	0.43	− 0.41	0.05	0.11229	P > 0.05 NS
	Mol tip-FP (CON)	− 0.63 ± 0.49	− 0.18	0.43	− 0.41	0.05	0.11229	P > 0.05 NS
	Mol C-FP (MOP)	− 0.16 ± 0.55	− 0.09	1.84	− 1.07	0.89	0.84745	P > 0.05 NS
	Mol C-FP (CON)	− 0.25 ± 1.82	− 0.09	1.84	− 1.07	0.89	0.84745	P > 0.05 NS
	Mol apex-FP (MOP)	+ 0.13 ± 0.80	− 0.20	0.61	− 0.53	0.13	0.21226	P > 0.05 NS
	Mol apex-FP (CON)	− 0.07 ± 0.73	− 0.20	0.61	− 0.53	0.13	0.21226	P > 0.05 NS

Can upper canine, MOP micro-osteoperforation, CON control, tip cusp tip, C center, apex root apex, Mol upper first molar, FP frontal plane, SD standard deviation, (− ve sign) mesial molar movement, (+ve sign) distal molar movement, SD standard deviation, NS non-significant, S significant, HS highly significant