糖尿病增加了Dentin的残留压力和微裂纹长度:XRD-SEM研究与人工智能辅助量化
Mohammad Ali Saghiri1, Kasra Momeni2, Chao-Ho Chien3
1Associate professor, Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, New Jersey; Director of Biomaterials Research Lab, Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, New Jersey.
Journal of endodontics
|September 11, 2025
概括
其余应力显著增加了仪器根牙中的微裂纹长度. 糖尿病患者表现出更长的微裂,这可能解释了他们更高的根衰竭风险.
科学领域:
- 生物材料科学 生物材料科学
- 牙科研究 牙科研究
- 材料科学 材料科学 材料科学
背景情况:
- 根牙中的残留应力是影响其机械完整性的关键因素.
- 牙中的微裂会损害牙结构,导致牙失败.
- 糖尿病患者可能表现出牙性质的改变,可能会影响机械反应.
研究的目的:
- 为了评估残余应力和微裂纹长度在根牙中的关联.
- 为了比较糖尿病患者和健康对照者的这些参数.
- 用人工智能辅助的工作流来进行定量分析.
主要方法:
- 20个下前 (10名糖尿病患者,10名健康患者) 被仪器仪表和切断.
- 使用sin2 X射线衍射测量了残余应力.
- 使用扫描电子显微镜和人工智能辅助的斐济工作流程分析了微裂.
主要成果:
- 与对照组 (-1.10 MPa) 相比,糖尿病牙的残余应力 (1.40 MPa) 显著更高.
- 糖尿病牙 (54.6微米) 的微裂纹长度明显大于对照组 (20.0微米).
- 在残余应力水平和微裂纹长度之间发现了正相关性.
结论:
- 其余应力是仪器牙根中微裂纹长度增加的一个重要因素.
- 糖尿病牙表现出较长的微裂,表明更容易发生故障.
- 这些发现可能会阐明糖尿病患者根骨折风险的增加.
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