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. The 45°x: 45° FORS with the co-axial probe (test system), the integrating sphere spectroscopy (reference system) and a commercial dental colorimeter (comparator system) were used to collect data and calculate color differences (ΔE and ΔE00). Results: FORS system displayed high repeatability, reproducibility and accuracy. ΔE and ΔE00 values between the shade-guide, each other, and the corresponding composites resulted above the clinically acceptable limit. The 45°x: 45°FORS test system demonstrated suitable in vitro performance for dental composite color evaluation.
Fiber optics reflectance spectroscopy (45°x: 45°) for color analysis of dental composite / M. Gargano, N. Ludwig, V. Federighi, R. Sykes, G. Lodi, A. Sardella, A. Carrassi, E.M. Varoni. - In: AMERICAN JOURNAL OF DENTISTRY. - ISSN 0894-8275. - 29:4(2016 Aug), pp. 223-228.
Fiber optics reflectance spectroscopy (45°x: 45°) for color analysis of dental composite
M. GarganoPrimo
;N. LudwigSecondo
;G. Lodi;A. Sardella;A. CarrassiPenultimo
;E.M. VaroniUltimo
2016
Abstract
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. The 45°x: 45° FORS with the co-axial probe (test system), the integrating sphere spectroscopy (reference system) and a commercial dental colorimeter (comparator system) were used to collect data and calculate color differences (ΔE and ΔE00). Results: FORS system displayed high repeatability, reproducibility and accuracy. ΔE and ΔE00 values between the shade-guide, each other, and the corresponding composites resulted above the clinically acceptable limit. The 45°x: 45°FORS test system demonstrated suitable in vitro performance for dental composite color evaluation.File | Dimensione | Formato | |
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