先进的统计分析以减少债券强度数据中的不一致性,重点关注捐助因素:使用线性混合和非线性回归模型进行六因素分析
Azusa Yamanaka1, Atsushi Mine1, Ayumi Shintani2
1Department of Fixed Prosthodontics and Orofacial Function, Osaka University Graduate School of Dentistry, Suita, Japan.
Journal of prosthodontic research
|March 3, 2024
概括
牙捐赠者的年龄显著影响牙结合力的强度,增加到60岁. 诸如结合面积和空隙等因素也会影响结合的耐用性,而性则不会.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
- 粘合式牙科 粘合式牙科
背景情况:
- 牙结合强度对于牙修复的长寿至关重要.
- 了解影响结合强度的因素,如供体特征,对于优化粘合剂协议至关重要.
研究的目的:
- 研究牙捐赠者的年龄和性别对牙结合强度的影响.
- 评估包括牙位置,粘接面积,空隙和CT值在内的其他因素对微拉伸键强度 (μTBS) 的影响.
主要方法:
- 使用了从17-82岁的捐赠者身上提取的38颗人类牙 (12名男性,26名女性).
- 评估微拉伸键强度 (μTBS) 在储水后立即和6个月后.
- 采用线性混合和非线性回归模型来分析供体年龄,性别,结合面积,空隙,牙位置和CT值对μTBS的影响.
主要成果:
- 结合面积,空隙的存在和储存时间显著影响了μTBS.
- 捐赠者的年龄与μTBS具有显著的正相关性,增加到60岁.
- 在μTBS和捐赠者的性别,牙位置或CT值之间没有发现显著的相关性.
结论:
- 丹丁结合力的强度受到捐赠者的年龄的积极影响,大约60岁.
- 捐赠者的年龄是牙结合强度的一个更重要的因素,而不是捐赠者的性别.
- 优化粘合程序应考虑牙特性与年龄相关的变化.
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