Differences in the color stability of E-glass fiber non dental reinforced composites with or without the addition of silane coupling agents

Perbedaan stabilitas warna E-glass fiber non dental reinforced composite dengan atau tanpa penambahan silane coupling agent

Abstract

Fiber reinforced composite (FRC) resin can improve color stability. The most commonly used fiber in dentistry is E-glass fiber, but dental E-glass fiber has limitations and is expensive. The composition of non-dental E-glass fiber is almost the same but the concentration is different. E-glass fiber is difficult to adhere to composite resin so it requires silane coupling agent as a binder. The difference in color stability of E-glass fiber non dental reinforced composite with or without the addition of silane coupling agent was studied through quantitative research with laboratory experimental method using one group pretest and posttest de-sign. The samples were FRC plates obtained by purposive sampling method, 13 mm in diameter and 2 mm thick, which were divi-ded into 2 groups of E-glass fiber non dental with silane and without silane. The color stability test was carried out by Us-Vis spectrophotometer whose absorbance value and wavelength were calculated to determine the area value of l*a*b* in each sam-ple. Statistical analysis using independent t-test. Significant differences were found between non-dental E-glass fiber with silane and without silane. It was concluded that non-dental E-glass fiber with silane showed better color stability than without silane.