Forces and moments generated during extrusion of a maxillary central incisor with clear aligners: an in vitro study

Table 12 UR1 Comparison of Zendura FLX® groups

Force	No attachment		Attachment		Pressure columns		P-value^a	P-value^b	P-value^c
Force	Mean	Std Dev	Mean	Std Dev	Mean	Std Dev	P-value^a	P-value^b	P-value^c
Fx (N)	2.15	0.98	2.06	0.41	2.43	0.36	< 0.001	< 0.001	< 0.001
Fy (N)	-3.27	5.39	-3.67	0.60	-0.54	1.66	< 0.001	< 0.001	< 0.001
Fz (N)	-0.21	0.65	0.69	0.98	0.00	0.64	< 0.001	< 0.001	< 0.001
Mx (Nmm)	-6.80	10.75	5.84	5.61	-1.41	6.63	< 0.001	< 0.001	< 0.001
My (Nmm)	1.13	8.32	12.14	8.50	0.88	4.80	< 0.001	< 0.001	< 0.001
Mz (Nmm)	47.98	58.73	38.84	6.86	21.04	19.66	< 0.001	< 0.001	< 0.001

ISSN: 1472-6831