不同 CAD/CAM 陶瓷和混合陶瓷材料的漂白对表面粗糙度和光泽度的影响。

The effect of bleaching on surface roughness and gloss of different CAD/CAM ceramic and hybrid ceramic materials.

机构信息

Oral and Maxillofacial Prosthodontics Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.

Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.

出版信息

J Appl Biomater Funct Mater. 2023 Jan-Dec;21:22808000231152566. doi: 10.1177/22808000231152566.

DOI:10.1177/22808000231152566

PMID:36785513

Abstract

OBJECTIVE

To assess the effect of bleaching on surface roughness and gloss of different CAD/CAM ceramic materials.

METHODS

The ceramic materials included IPS e.max CAD (lithium disilicate), VITA ENAMIC (polymer infiltrated ceramic), and Celtra Duo CAD (zirconia reinforced lithium silicate). Samples of each material were randomly divided into four groups ( = 10); a control group immersed in distilled water, the second and third groups were treated with 20% carbamide peroxide (20% CP) and 35% carbamide peroxide (35% CP) bleaching agents for 4 h/day and 60 min/day respectively for 7 days. The fourth group was treated with 40% hydrogen peroxide (40% HP) applied twice, each turn for 20 min. After treatment, the surface roughness (using 3D non-contact profilometry) and surface gloss were assessed followed by imaging with a scanning electron microscope. The data were analyzed using multiple linear regression and Kruskal-Wallis one-way ANOVA tests (α = 0.05).

RESULTS

The surface roughness ( = 0.157) and gloss ( = 0.073) of IPS e.max CAD were not significantly affected by the different bleaching treatments. Similarly, no significant effect on surface roughness ( = 0.162) and gloss ( = 0.965) were shown for Celtra Duo CAD. On the other hand, VITA ENAMIC was significantly affected when treated with 20% CP and 35% CP showing increased roughness ( = 0.001) and gloss ( = 0.008).

CONCLUSIONS

Home bleaching treatments (20% CP and 35% CP) significantly affected the surface roughness and gloss of VITA ENAMIC while IPS e.max CAD and Celtra Duo CAD were not affected by the different bleaching treatments.

摘要

目的

评估漂白对不同 CAD/CAM 陶瓷材料表面粗糙度和光泽度的影响。

方法

陶瓷材料包括 IPS e.max CAD（锂硅二酸盐）、VITA ENAMIC（聚合物渗透陶瓷）和 Celtra Duo CAD（氧化锆增强锂硅玻璃陶瓷）。将每种材料的样本随机分为四组（n=10）；一组为对照组，浸泡在蒸馏水中；第二组和第三组分别用 20%过氧化脲（20% CP）和 35%过氧化脲（35% CP）漂白剂处理，每天处理 4 小时，每天处理 60 分钟，共处理 7 天；第四组用 40%过氧化氢（40% HP）处理两次，每次 20 分钟。处理后，用三维非接触轮廓仪评估表面粗糙度，用扫描电子显微镜成像评估表面光泽度。使用多元线性回归和 Kruskal-Wallis 单向方差分析（α=0.05）对数据进行分析。

结果

IPS e.max CAD 的表面粗糙度（ =0.157）和光泽度（ =0.073）不受不同漂白处理的影响。同样，Celtra Duo CAD 的表面粗糙度（ =0.162）和光泽度（ =0.965）也没有受到显著影响。另一方面，VITA ENAMIC 在用 20% CP 和 35% CP 处理时受到显著影响，表现为粗糙度增加（ =0.001）和光泽度增加（ =0.008）。