表面质的组成和特征是否随着近接间质的缩小而变化?
Kishore B Poovattil1, Haritha P Sathyanarayana1, Sridevi Padmanabhan2
1Department of Orthodontics, Sri Ramachandra Dental College, SRIHER, 1, Ramachandra Nagar, Porur, Chennai, 600116, India.
Clinical oral investigations
|February 26, 2024
概括
在正牙科中,近距离缩小 (IPR) 创建了更粗的牙面,但没有显著地改变牙的化学成分或矿物质含量. 这项研究发现,在减少和未减少的面膜之间,和等元素的含量没有显著差异.
科学领域:
- 牙科材料科学 牙科材料科学
- 正牙技术正牙技术的使用.
- 涂表面分析 涂表面分析
背景情况:
- 间近接缩小 (IPR) 是一种常见的正牙手术.
- 人们对IPR后潜在的去矿化和脏病风险增加存在担忧.
- 有限的体内数据评估了IPR后的质化学变化.
研究的目的:
- 评估近接质表面的化学组成.
- 在不同程度的近距离缩小 (IPR) 后,描述表面变化.
- 在临床环境中评估IPR对质矿物质含量的影响.
主要方法:
- 为提取而设计的头经历了0.2毫米,0.3毫米或0.5毫米的IPR.
- 牙在一个月后被拔掉.
- 扫描电子显微镜 (SEM) 和能量分散式X射线光谱 (EDX) 分析了质表面.
主要成果:
- 与对照组的蜂图案相比,SEM在IPR后发现了不规则的,粗的面膜面.
- 在0.2毫米IPR组中,在更高放大时观察到轻微的质侵蚀.
- 所有分析的牙面都含有,,碳,氧和.
- 两组之间没有发现元素组成或Ca/P比率的统计学上显著差异.
结论:
- IPR会导致表面不规则和粗,但不会显著改变质的元素组成.
- 在IPR后,质的矿物质含量 (和) 在统计上保持不变.
- 这些发现支持IPR协议关于质完整性的临床安全性和有效性.
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