| ORIGINAL RESEARCH |
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| Year : 2023 | Volume
: 15
| Issue : 4 | Page : 357-366 |
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Color stability in a giomer, a conventional glass ionomer and a resin-modified glass ionomer exposed to different pigment beverages: An in vitro comparative study
Brian Alacote-Mauricio1, Cindy Gihuaña-Aguilar1, Leonor Castro-Ramirez1, Luis Cervantes-Ganoza2, Marysela Ladera-Castañeda3, Giannina Dapello-Zevallos1, César Cayo-Rojas1
1 Universidad Privada San Juan Bautista, School of Stomatology, Lima, Peru
2 Universidad Inca Garcilaso de la Vega, Faculty of Stomatology, Lima, Peru
3 Universidad Nacional Federico Villarreal, Faculty of Dentistry and Postgraduate School, Research Team “Salud Pública—Salud Integral,”, Lima, Peru
Correspondence Address:
Dr. César Cayo-Rojas
Universidad Privada San Juan Bautista, School of Stomatology, Jose Antonio Lavalle Avenue, 302-304 (Ex Hacienda Villa), Chorrillos, Lima
Peru
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/jioh.jioh_93_23
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Aim: Discoloration in ionomeric materials occurs by absorption of substances, so color stability is important because these materials are of choice to restore class V. The purpose of the current study was to evaluate the color stability of a giomer, a conventional glass ionomer and a resin-modified glass ionomer exposed to different beverages with different immersion times. Materials and Methods: This in vitro experimental and longitudinal study had 135 discs were sampled in total (2 mm thick × 8 mm in diameter) distributed in three equal groups (n = 45): Beautifil II, Vitremer, and Ketac Universal. Each group was divided into three equal subgroups (n = 15 each group) and immersed in three different staining solutions: coffee, Coca-Cola®, and red wine. Color change was recorded with the Vita Easyshade® spectrophotometer after 1 h, 24 h, and 1 week of immersion. Measures of central tendency and dispersion were calculated. Kruskal–Wallis and Friedman nonparametric H tests were used to compare independent measures. The Bonferroni post hoc was used considering a significance level of P < 0.05. Results: Beautifil II (P <0.05) and Ketac Universal (P < 0.05) showed significant differences with respect to color variation (ΔE) when comparing exposure to Coca-Cola® versus exposure to coffee and red wine for 1 h, 24 h, and 1 week. Vitremer showed no significant differences when exposed to Coca-Cola®, coffee, and red wine for 1 h, 24 h, and 1 week (P = 0.607, P = 0.276, and P = 0.134, sequentially). All three restorative materials, after 1 hour immersed in Coca-Cola®, showed ΔE < 3.3 and Beautifil II obtained ΔE = 3.12 after 24 h immersed in the same beverage. Conclusion: Coffee and red wine significantly varied the color of Beautifil II and Ketac Universal over time. Beautifil II and Ketac Universal showed significantly more pigmentation with red wine and less with Coca-Cola® at 1 week immersion. Vitremer showed no significant differences when exposed to Coca-Cola®, coffee, and red wine at all times tested. There were clinically acceptable variations for all three restorative materials immersed in Coca-Cola for 1 h. This clinical threshold was only maintained for the Beautifil II giomer up to 24 h of immersion in the same beverage. |
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