Evaluation of the color stability of three maxillofacial silicone materials after exposure to beverages: An in vitro study
Issued Date
2024-02-29
Resource Type
ISSN
24058440
Scopus ID
2-s2.0-85185170653
Journal Title
Heliyon
Volume
10
Issue
4
Rights Holder(s)
SCOPUS
Bibliographic Citation
Heliyon Vol.10 No.4 (2024)
Suggested Citation
Chugh A., Hattori M., Towithelertkul C., Sumita Y.I., Wakabayashi N. Evaluation of the color stability of three maxillofacial silicone materials after exposure to beverages: An in vitro study. Heliyon Vol.10 No.4 (2024). doi:10.1016/j.heliyon.2024.e25529 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/97336
Title
Evaluation of the color stability of three maxillofacial silicone materials after exposure to beverages: An in vitro study
Corresponding Author(s)
Other Contributor(s)
Abstract
Purpose: Oral cancer often requires treatments like surgical intervention, involving surgical resection of lips and other facial parts. For those patients, prosthetic rehabilitation following surgery promotes social reintegration. This study explores the color stability of various commercially available silicone materials for facial prostheses when exposed to everyday beverages like coffee and tea. The hypothesis is that these beverages can induce color changes in silicones, simulating conditions of daily use. Material and methods: A total of 90 specimens were fabricated. There were 30 specimens deefor each of 3 nonpigmented silicone elastomers: Silfy, A-2186-F and VST-50 and were immersed in tea or coffee at drinking temperature and evaluated for color changes at time points of 0 h, 1 h, and 6 h. The color was measured with a colorimeter that used the CIE L*a*b* system and the color change ΔΕ was calculated to quantify the color change. Statistical analysis was performed by using the Kruskal-Wallis test, the Mann-Whitney U test, and the Wilcoxon signed-rank Test. The threshold for statistical significance was P < .05. Results: Color change was observed for each of the silicones exposed to the beverages (P < .05). The value of ΔE was significantly higher for A-2186-F compared with VST-50 and Silfy (P < .05 in all beverages at 6 h). The color of the elastomers progressively changed while immersed in the beverages over 6 h. The change in color was significantly greater for coffee compared with tea (P < .05). Conclusions: The color stability of nonpigmented silicone elastomers is inherently low, which contributes to the overall color change of silicone prostheses when they are exposed to beverages that contain pigments. The elastomer A-2186-F had greatest values of ΔE among the materials tested. Color changes of silicone prostheses can be lessened by selecting materials with consideration of color stability to improve their longevity and extend their period of use.