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Orthodontic material property has continuously been improved all along. Recent innovations has been proved that they could overcome limitations of conventional materials. Esthetic (Invisible) brackets and toothcolored wires have been developed to meet the patient esthetic demand. Although the mechanical properties of tooth-colored labial archwire is resemble to the conventional ones, clinical use is still limited. Tooth color archwire can be classify into metal polymer composite (coated metallic) archwire and ceramic polymer composite (composite) archwire. Previous studies mostly focused on mechanical property, color stability and surface roughness. Results showed even though such wires could clinically be used, still they need to be modified or improved. The appropriate use of tooth color archwire would benefit most to the patients.
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