Fiber optics reflectance spectroscopy (45°x: 45°) for color analysis of dental composite.

Purpose: To evaluate the application of a fiber optic reflectance spectroscopy (FORS) prototype probe for 45°x: 45° FORS for determining color of dental materials. A portable spectrophotometer with a highly manageable fiber optics co-axial probe was used to apply 45°x: 45° FORS for color matching in restorative dentistry.

Methods: The color coordinates in CIELAB space of two dental shade guides and of the corresponding photopolymerized composites were collected and compared.