Influence of Pigments and Pigmenting Methods on Color Stability of Different Silicone Maxillofacial Elastomers After 1-Year Dark Storage
Küçük Resim Yok
Tarih
2013
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Lippincott Williams & Wilkins
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Purpose: The purpose of this study was to measure spectrophotometrically the color changes of pigmented maxillofacial silicone elastomers with different pigments and pigmenting methods after storing 1 year in the dark environment. Methods: Three maxillofacial silicones, Cosmesil M511 (CosM511), Cosmesil M522 (CosM522), and Multisil-Epithetic (Mult-Epit), were selected for this study. A total of 240 specimens were fabricated; 80 of each of the 3 elastomers (n = 5) (18 mm in diameter and 2 mm in thickness) were prepared in 6 colorant categories (5 colorant and 1 with no colorant). Specimens were stored in a black box representing a condition of total darkness and placed in a dark environment at ambient room temperature (22 degrees C + 10 degrees C) and humidity (50% +/- 10%) for 1 year. A color spectrophotometer was used to measure the Delta E* values of the test specimens to determine the color changes. Results: The lowest color changes were observed in CosM511 in white color (Delta E* = 1.31) and in Mult-Epit in white color (Delta E* = 1.82) in extrinsic coloration group. The highest color changes were observed in yellow color in CosM511 (Delta E* = 21.61) and CosM522 (Delta E* = 23.78) in silicone pigmented intrinsic coloration method. In coloration methods, intrinsic silicone pigmented groups in all colors except brown in Mult-Epit had the highest Delta E* values. Conclusions: Significant color changes were observed in both pigmented and unpigmented specimens, which were stored in dark environment and not exposed to sunlight.
Açıklama
Anahtar Kelimeler
Maxillofacial silicone elastomers, intrinsic coloration, extrinsic coloration, maxillofacial pigments, color stability
Kaynak
Journal of Craniofacial Surgery
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
24
Sayı
3
