纳米混合复合材料和微混合复合材料在不同时间浸入常见着色饮料后的颜色稳定性：一项实验室研究。

Color stability of nanohybrid and microhybrid composites after immersion in common coloring beverages at different times: a laboratory study.

作者信息

Al-Shami Ahlam Mohammad, Alshami Mohammad Ali, Al-Kholani Abdulwahab I, Al-Sayaghi Amat-Alkhaliq Mohammad

机构信息

Department of Conservative Dentistry, Faculty of Dentistry, Sana'a University, Sana'a, Yemen.

Department of Dermatology and Venerology, Faculty of Medicine and Medical Sciences, Sana'a University, Sana'a, Yemen.

出版信息

BDJ Open. 2023 Aug 16;9(1):39. doi: 10.1038/s41405-023-00161-9.

OBJECTIVE/AIM: This in vitro study aimed to evaluate the color stability of microhybrid and nanohybrid restorative composites after exposure to immersion media common in Yemen for different periods.

MATERIALS AND METHODS

Two composite materials, nanohybrid Tetric N-Ceram and microhybrid Te-Econom Plus, were investigated. Six groups of 30 cylindrical specimens (n = 5/group; diameter, 10 mm; thickness, 2 mm; shade A2) of each restorative material were immersed for 1 week in distilled water, qat solution, Yemeni coffee, traditional Yemeni coffee (qishr), red tea, and Dilsi cola. Color changes were evaluated by colorimetry. The color data and pH were measured before and 1, 3, and 7 days after immersion. The data were statistically analyzed.

RESULTS

Tetric N-Ceram showed lesser discoloration than did Te-Econom Plus. Qat, coffee, and red tea caused highly significant discoloration than did Dilsi cola and distilled water (p < 0.05). The role of low pH in discoloration depended on the colorant.

DISCUSSION

Nanohybrid Tetric N-Ceram composites are more resistant to discoloration than are microhybrid Te-Econom Plus composites. Qat and coffee have the highest effect on composite discoloration.

CONCLUSIONS

These findings will aid in selecting composite materials and patient instruction.

目的

本体外研究旨在评估微混合和纳米混合修复性复合材料在暴露于也门常见的浸泡介质中不同时间段后的颜色稳定性。

材料与方法

研究了两种复合材料，纳米混合的Tetric N-Ceram和微混合的Te-Econom Plus。将每种修复材料的六组30个圆柱形试样（每组n = 5；直径10毫米；厚度2毫米；色号A2）分别在蒸馏水、巧茶溶液、也门咖啡、传统也门咖啡（基什尔）、红茶和迪尔西可乐中浸泡1周。通过比色法评估颜色变化。在浸泡前以及浸泡1天、3天和7天后测量颜色数据和pH值。对数据进行统计学分析。