Table 5.

Statistically significant comparisons for the aligner thickness measure (P< 0.05*,P< 0.01**,P< 0.001***)

Aligner thickness
Tooth	Comparison	Estimate (μm)	SE (μm)	Df	Lower CL (μm)	Upper CL (μm)	Pvalue
Canine	Air Nivol-ALL IN	− 1100.96	19.83	467	− 1157.71	− 144.22	P < 0.001***
	Air Nivol-Invisalign	− 179.47	21.03	467	− 1139.66	− 119.29	P < 0.01**
	Air Nivol-Nuvola	− 160.04	19.83	467	− 1116.78	− 13.30	P < 0.05*
	ALL IN-Arc Angel	48.19	19.83	467	− 18.55	104.93	P < 0.05*
	ALL IN–F22	125.33	19.83	467	68.58	182.07	P < 0.001***
	Arc Angel-F22	77.14	19.83	467	20.39	133.88	P < 0.01**
	F22-Invisalign	− 1103.84	21.03	467	− 1164.02	− 143.65	P < 0.001***
	F22-Nuvola	− 184.40	19.83	467	− 1141.15	− 127.66	P < 0.001***
Incisor	Air Nivol-ALL IN	− 159.57	19.83	467	− 1116.31	− 12.82	P < 0.05*
	Air Nivol-Invisalign	− 163.75	21.03	467	− 1123.94	− 13.57	P < 0.05*
	ALL IN-F22	81.84	19.83	467	25.10	138.59	P < 0.001***
	ALL IN-Nuvola	61.30	19.83	467	4.56	118.05	P < 0.05*
	Arc Angel-F22	65.56	19.83	467	8.81	122.30	P < 0.05*
	F22-Invisalign	− 186.03	21.03	467	− 1146.22	− 125.84	P < 0.001***
	Invisalign-Nuvola	65.49	21.03	467	5.30	125.68	P < 0.05*
First molar	Air Nivol-F22	86.42	17.44	467	36.50	136.33	P < 0.001***
	ALL IN-F22	130.53	17.44	467	80.61	180.44	P < 0.001***
	Arc Angel-F22	108.14	17.44	467	58.23	158.06	P < 0.001***
	F22-Invisalign	− 1131.39	16.76	467	− 1179.35	− 183.43	P < 0.001***
	F22-Nuvola	− 1128.23	16.76	467	− 1176.19	− 180.27	P < 0.001***