Accuracy of interproximal enamel reduction during clear aligner treatment

Progress in Orthodontics

Table 1 Error analysis

	Tooth	Mesio-distal tooth diameter T0		Mesio-distal tooth diameter T1
	Tooth	D Dahlberg (mm)	Systematic error P level	D Dahlberg	Systematic error P level
Upper arch	11	0.30	0.12	0.39	0.16
	13	0.29	0.23	0.97	0.12
	15	0.78	0.17	0.27	0.26
	22	0.43	0.12	1.01	0.06
	24	0.67	0.18	0.43	0.14
Lower arch	31	0.65	0.09	0.75	0.13
	33	0.47	0.12	0.59	0.14
	35	0.45	0.13	0.86	0.21
	42	0.88	0.25	0.67	0.20
	44	1.11	0.08	0.39	0.11