Daghrery Arwa, Khayat Waad, Albar Nassreen, Khojah Maysaa, Jabarti Eman, Mitwalli Heba, Al Moaleem Mohammed
Department of Restorative Dental Sciences, School of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia.
Department of Restorative Dentistry, College of Dentistry, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia.
Heliyon. 2024 Jul 5;10(13):e34172. doi: 10.1016/j.heliyon.2024.e34172. eCollection 2024 Jul 15.
Patient stratifications considered the stability of color and treatment longevity are key success of restoration. Daily consumption of colored beverages, such as coffee, tea, and soft drinks, as well as the use of globally consumed materials, such as smokeless tobacco (ST), snuff, Khat, and Yerba mate, can change the color of restorative materials, such as lithium disilicate glass ceramics (LDGC). These changes can ultimately lead to treatment failure.
This in vitro study aimed to evaluate color changes, translucency, and opalescence of full anatomical LDGC crowns exposed to commonly used and potentially colorant solutions.
Ninety LDGC specimens/crowns were prepared and divided into nine groups according to immersion solution (control, Saudi Coffee, Cola, Khat, Yerba mate, Nescafe, ST Snuff, and Mixed Fruit Juice). The specimens were immersed in colorant solutions for 15 days with alternating twice daily at 37 °C. Color parameters were measured with a spectrophotometer and calculated using two backgrounds (black and white). Data were subjected to ANOVA followed by the Student t-test and Bonferroni test at a significant difference level (α = 0.05).
The greatest color change (ΔE*) among groups after immersion was observed in Yerba mate (7.6 ± 1.6). The mean difference of before and after staining within Yerba mate group was 3.14 ± 1.6 (p = 0.001). Translucency mean values of groups after immersion into staining media were ranging between 7.6 ± 1.2 and 9.1 ± 2, showing a slight decrease compared with pre-staining values but was not significantly different. Immersion in Mixed Fruit Juice significantly reduced opalescence (7.4 ± 1.9) compared to (8.8 ± 1.7) before staining.
The findings confirm that appropriate user guidance helps to preserve both translucency and opalescence as well as prevent color changes. This can improve patient compliance and promote treatment longevity.
考虑到颜色稳定性和治疗持久性的患者分层是修复成功的关键。日常饮用有色饮料，如咖啡、茶和软饮料，以及使用全球范围内消费的物质，如烟斗丝、鼻烟、巧茶和马黛茶，会改变修复材料的颜色，如二硅酸锂玻璃陶瓷（LDGC）。这些变化最终可能导致治疗失败。
本体外研究旨在评估完全解剖型LDGC全冠暴露于常用和潜在着色溶液后的颜色变化、透明度和乳光。
制备90个LDGC标本/全冠，并根据浸泡溶液（对照组、沙特咖啡、可乐、巧茶、马黛茶、雀巢咖啡、鼻烟丝、混合果汁）分为9组。将标本在37℃下浸泡在着色溶液中15天，每天交替浸泡两次。用分光光度计测量颜色参数，并使用两种背景（黑色和白色）进行计算。数据进行方差分析，然后进行Student t检验和Bonferroni检验，显著性差异水平为α = 0.05。
浸泡后各实验组中，马黛茶组颜色变化（ΔE*）最大（7.6 ± 1.6）。马黛茶组染色前后的平均差异为3.14 ± 1.6（p = 0.001）。浸泡在染色介质中后，各实验组的透明度平均值在7.6 ± 1.2至9.1 ± 2之间，与染色前相比略有下降，但无显著差异。与染色前（8.8 ± 1.7）相比，浸泡在混合果汁中显著降低了乳光（7.4 ± 1.9）。
研究结果证实，适当的用户指导有助于保持透明度和乳光，同时防止颜色变化。这可以提高患者的依从性并延长治疗持久性。
