Spectrophotometric Evaluation of Color Stability of New Hybrid and Nanocomposite Materials in Commonly Consumed Indian Beverages
Shruti S Khade, Anita B Tandale, Shrirang Sangle, Karishma Krishnakumar, Sayali A Maral, Twinkle Talreja
Beverages, Discoloration, Green tea, Nanocomposites, Resin composite, Spectrophotometer
Citation Information :
Khade SS, Tandale AB, Sangle S, Krishnakumar K, Maral SA, Talreja T. Spectrophotometric Evaluation of Color Stability of New Hybrid and Nanocomposite Materials in Commonly Consumed Indian Beverages. World J Dent 2022; 13 (S1):S28-S32.
Aim: The study aimed to compare the color stability of nanohybrid composites, a nanoceramic composite, and a universal nanofilled composite using a spectrophotometer.
Materials and methods: A total of 144 disk-shaped specimens were prepared with a specially constructed mold into groups I, II, and III of ceram.x SphereTEC one, Brilliant™NG, GC SOLARE Sculpt, respectively. The samples were immersed in beverages containing tea, coffee, green tea, and Coca-Cola. After initial color measurements, 12 sample disks from each composite group were immersed in one of the solutions for 3 hours a day. The second measurements were made on the 7th day of immersion with the same digital spectrophotometer. The same procedure was repeated on the 15th and 30th days.
Results: There was a statistically significant difference (p < 0.05) for ceram.x SphereTEC one (group I) in tea, coffee, green tea, and Coca-Cola at 7, 15, and 30 days. Tea (1.85 ± 1.0) showed the lowest, whereas Coca-Cola (10.11 ± 4.6) revealed the highest ΔE value at 7 days. The ΔE values gradually increased for 15 and 30 days. The ΔE value increased for Coca-Cola in 7 days (6.96 ± 1.78) to 30 days (8.7 ± 1.3) in group II. The ΔE value increased for tea, coffee, and green tea from 7 to 30 days in group III. GC SOLARE Sculpt was the restorative material most prone to discoloration among the three.
Conclusion: Tea showed maximum staining among all beverages. Green tea showed the least staining among all beverages. Tea, coffee, and Coca-Cola showed clinically significant staining properties among all beverages.
Clinical significance: Composite discoloration is a common complaint among patients, and evaluation of color stability of composites is also of paramount importance in clinical dentistry.
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