Comparison of Cell Viability and Chemical Composition of Six Latest Generation Orthodontic Wires

Table 2

Number of living-HGF cells exposed to different wires, before and after being used in the mouth, and percentage of cytotoxicity after 72 h.

Orthodontic wires	Before-use group	After-use group	Cytotoxicity (%)	value
	Live cells mean ± SD
NT3	19719 ± 852	18506 ± 891	15	NS
Tanzo	20838 ± 1633	19699 ± 2314	8	NS
DuoForce	20127 ± 3320	20242 ± 2051	1	NS
FLI	21771 ± 1016	16710 ± 1 932	36
Gummetal	21865 ± 1683	20734 ± 1686	2	NS
Fantasia	22132 ± 394	20379 ± 1796	12	NS

t-test was used for statistical significance. NS: nonsignificant.