变色的牙复合材料可以进行深度漂白吗?
Luca Giachetti1, Daniele Scaminaci Russo1, Michele Nieri1
1Department of Experimental and Clinical Medicine, Unit of Dentistry, University of Florence, Florence, Italy.
Restorative dentistry & endodontics
|September 9, 2024
概括
这项研究发现,牙美白剂有效地恢复了染色的纳米填充树脂复合材料的原始白色,特别是在表面层. 有效性可以穿透到1.5毫米的材料.
科学领域:
- 牙科材料科学 牙科材料科学
- 审美牙科 审美牙科
- 生物材料是一种生物材料.
背景情况:
- 之前的体外研究已经评估了漂白剂对染色树脂复合材料表面的漂白效果.
- 了解复合树脂中的美白有效性的深度对于临床应用至关重要.
研究的目的:
- 为了评估白化系统对先前经过咖啡染色的纳米填充复合树脂的有效性.
- 为了确定复合树脂材料结构中的美白效率的深度.
主要方法:
- 纳米填充复合树脂样本被咖啡溶液染色.
- 10%的碳胺过氧化物凝被用作美白剂.
- 颜色 (CieLab值) 测量了从表面到3.0毫米深度的14个点,以评估色素透和漂白效果.
主要成果:
- 在对照组,染色组和白色组之间观察到统计学上显著的差异.
- 白化剂的有效性在深度高达1.5毫米时被证明是有效的.
- 白度指数值在统计学上与对照组没有差异,直至0.5毫米深.
结论:
- 漂白剂有效地恢复了先前染色的纳米填充树脂复合材料的原始白色.
- 复合材料的修复作用在复合材料的表面层中最为明显.
- 白化效果的深度是有限的,特别是在复合材料的更深层.
相关概念视频
01:21Tooth Anatomy
The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
01:19Veneer
Veneer refers to a thin sheet of wood, typically produced to a thickness of about one-eighth of an inch or less. This material is crafted through various methods, the most common being rotary cutting. In this process, a log is mounted into a large lathe and spun against a knife edge, peeling off a continuous strip of wood as the knife penetrates deeper into the rotating log, creating a rotary-cut veneer.
Other veneering techniques include plain-slicing, quarter-slicing, and rift-slicing. These...
Other veneering techniques include plain-slicing, quarter-slicing, and rift-slicing. These...