Analysis of Different Positions of Fiber-Reinforced Composite Retainers versus Multistrand Wire Retainers Using the Finite Element Method

Table 3

Displacement proportion in vertical loading and protrusive loading among the groups.

Tooth	Direction	Displacement proportion in vertical loading			Displacement proportion in protrusive loading
		M1/M2	M1/M3	M2/M3	M1/M2	M1/M3	M2/M3
Central	Apex labial	1.5	1.2	0.8	1.6	2.0	1.2
	Apex palatal	1.7	1.5	0.8	1.7	2.0	1.4
	Middle root labial	1.5	1.2	0.8	1.1	1.5	1.2
	Middle root palatal	1.8	1.5	0.8	1.3	3.9	2.9
	Cervix labial	1.6	1.3	0.8	2.1	2.0	0.9
	Cervix palatal	1.6	1.3	0.8	2.1	2.0	0.9
Lateral	Apex labial	0.08	0.1	1.2	0.3	0.2	0.7
	Apex palatal	0.1	0.1	1.0	0.7	0.5	0.6
	Middle root labial	0.08	0.1	1.2	0.2	0.2	0.7
	Middle root palatal	0.1	0.1	1.0	0.8	0.3	0.4
	Cervix labial	0.1	0.1	1.1	0.5	0.5	0.9
	Cervix palatal	0.1	0.1	1.1	0.5	0.5	0.9
Canine	Apex labial	0.08	0.06	0.6	0.2	0.4	1.6
	Apex palatal	0.1	0.09	0.9	0.5	0.4	0.8
	Middle root labial	0.01	0.07	0.5	0.3	0.3	1.0
	Middle root palatal	0.1	0.15	0.5	0.4	0.3	0.7
	Cervix labial	0.08	0.07	0.9	0.3	0.4	1.1
	Cervix palatal	0.08	0.07	0.9	0.3	0.4	1.1