Frictional resistance in monocrystalline ceramic brackets with conventional and nonconventional elastomeric ligatures

Progress in Orthodontics

Table 1 Descriptive statistics for the frictional forces (Newton)

SENT (in.)	CM (mm)	Inspire Ice-CEL		Inspire Ice-NCEL		Radiance-CEL		Radiance-NCEL		Pure CEL		Pure NCEL
		Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD
0.12	1.5	0.177	0.028	0.045	0.005	0.147	0.021	0.029	0.013	0.100	0.025	0.059	0.011
	3.0	0.279	0.016	0.178	0.021	0.361	0.026	0.187	0.026	0.248	0.038	0.184	0.014
	4.5	0.362	0.033	0.212	0.025	0.467	0.041	0.279	0.054	0.327	0.031	0.236	0.026
	6.0	0.474	0.108	0.256	0.025	0.510	0.026	0.290	0.042	0.415	0.049	0.301	0.028
0.14	1.5	0.175	0.018	0.088	0.006	0.206	0.020	0.095	0.016	0.145	0.019	0.062	0.015
	3.0	0.335	0.013	0.226	0.009	0.471	0.020	0.318	0.014	0.331	0.010	0.214	0.005
	4.5	0.429	0.018	0.275	0.017	0.647	0.063	0.441	0.041	0.444	0.011	0.323	0.047
	6.0	0.496	0.024	0.354	0.027	0.773	0.113	0.481	0.106	0.422	0.056	0.348	0.028

CM canine misalignment, SENT superelastic nickel titanium wire, CEL conventional elastomeric ligatures, NCEL nonconventional elastomeric ligatures.