[X射线评价的设计特征的树干针标签]
M Z Ertuvkhanov1, A G Nadtochiy1, S N Andreeva2
1Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia.
概括
在牙上使用茎钉标签的牙假体通常不符合质量标准. 许多修复无法满足针长度,根管填充和根壁厚度的要求,这表明需要改进技术.
科学领域:
- 牙科 牙科是指牙科的专业.
- 牙修复 牙修复 牙修复 牙修复 牙修复
- 牙科材料 牙科材料
背景情况:
- 恢复严重腐烂的牙通常需要进行后和核心修复.
- 茎针标签是对有显著冠状组织损失的牙的常见假肢解决方案.
研究的目的:
- 客观地评估上和下牙的茎针假肢的质量.
- 为了确定这些牙科修复的制造和放置的常见缺陷.
主要方法:
- 80个形束计算断层扫描 (CBCT) 研究的回顾性分析.
- 使用RadiAnt软件评估牙科准备和建模根针内嵌.
主要成果:
- 只有47.5%的修复符合针长要求,40.0%的根管填充不足,36.3%的根壁厚度不足.
- 没有一个病例达到要求的冠状和针部件的比例.
- 在很大一部分情况下,安全区和足够的牙组织厚度受到损害.
结论:
- 目前用于茎针假肢的技术经常偏离临床建议.
- 改善假肢质量需要更好的指示评估,技术坚持,以及专业的制造方法多根牙,考虑到根的解剖学和闭合力.
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