In vitro evaluation of color changes of aesthetic orthodontic elastic ligatures

The objective of this study was to evaluate the possible changes in color of aesthetic elastic ligatures soaked in different solutions. Five different brands of aesthetic elastic ligatures were evaluated in the present study. Measurement of the discs´ color was performed using a reflectance spectrophotometer (UV-visible spectrophotometer, UV-2450, Shimadzu®, Kyoto, Japan). Subsequently, the discs were immersed in artificial saliva (AS) or three different solutions: red wine (RW) (Miolo Terranova® 2010, Casa Nova, Brazil), coffee (CF) (Cafe Tres Coracoes®, RioGrande do Norte, Brazil) or Coca-Cola® (CC) (Coca-Cola®, Belo Horizonte, Brazil). It was determined that the tested solutions were able to cause color changes in the aesthetic elastic ligatures. The coffee solution caused the greatest color change in all of the brands of ligatures evaluated, followed by the red wine solution. In conclusion, OSE and GAC brands of aesthetic elastic ligatures displayed the best performance.(AU) El objetivo de este estudio fue evaluar los posibles cambios en el color de ligaduras elasticas esteticas embebidas en diferentes soluciones. Cinco diferentes marcas de ligaduras elasticas esteticas fueron evaluados en el presente estudio. La medicion de discos de color se realizo con un espectrofotometro de reflectancia (espectrofotometro UV-visible, UV-2450, Shimadzu®, Kyoto, Japon). A continuacion, los discos se sumergieron en saliva artificial o tres soluciones diferentes: vino tinto (Miolo Terranova® 2010, Casa Nova, Brasil), cafe (Cafe Tres Coracoes®, RioGrande do Norte, Brasil) o Coca-Cola® (Coca-Cola®, Belo Horizonte, Brasil). Se determino que las soluciones testeadas fueron capaces de causar cambios de color en las ligaduras elasticas esteticas. La solucion de cafe causo el mayor cambio de color en todas las marcas de ligaduras evaluados, seguido por la solucion de vino tinto. En conclusion, las marcas de ligaduras elasticas esteticas OSE y GAC muestran el mejor desempeno.(AU)