Evaluación in vitro de los cambios cromáticos en resinas de nanorelleno filtek™ z350 xt sumergidas en diferentes bebidas

Abstract

The purpose of this study was to analyze chromatic changes in nanofilled resins after being immersed in different drinks for 15 and 30 days as well as assess changes between drinks. Materials and Methods: 80 specimens of Filtek® Z350 XT resin (enamel A2) of 10mm in diameter x 3mm in thickness were produced, which were immersed in distilled water, coffee, horchata tea and orange juice for 15 and 30 days at 37ºC. The values were obtained with the spectrophotometer Vita Easyshade Advance 4.0, which were taken according to the Vita Classical A1-D4 scale before and after each experimental time. The results were coded according to the mentioned scale in order of brightness (from lightest to darkest). Results: There were analyzed using descriptive statistics, frequency analysis and U Mann-Whitney test was used to compare between groups. Coffee produced greater color change △ X= 10,9; horchata tea produced changes of △X= 8,3 at 15 days and △X= 10,00 at 30 days, orange juice △ X = 4,00 at 15 days and △ X= 6,8 at 30 days; distilled water groups showed less difference △X = 0,00 at 15 days and △X= 0,4 to 30 days. There is no statistically significant difference (p>0.05) between coffee group for 15 days versus coffee group for 30 days as same as between distilled water group for 15 days versus distilled water group for 30 days