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经过修改的柱与抛光的侧墙和预制的肩膀可以有效地保护牙下缺陷的牙
Guosheng Cui1,2, Jie Zhang3, Bohan Cui4
1Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, 75 Dagu North Road, Heping District, Tianjin, People's Republic of China. cgsguosheng@126.com.
Scientific reports
|January 22, 2025
概括
经过修改的柱提供了优越的临床疗效和更好的应力分布,用于下缺陷牙与传统的皇冠延长与纤维柱相比. 这种牙修复技术可以促进牙周状况更健康.
科学领域:
- 牙科材料科学 牙科材料科学
- 牙周病学 牙周病学
- 生物机械工程 生物机械工程
背景情况:
- 牙下缺陷在牙修复方面带来了挑战.
- 传统的方法,如用纤维杆延长皇冠,有其局限性.
- 评估新材料以改善结果至关重要.
研究的目的:
- 评估修改后的柱的临床疗效,以恢复下缺陷牙 (≥2毫米深度).
- 为了比较改性柱的机械特性和应力分布,与皇冠延长后的纤维柱相比.
- 用任何一种方法评估牙周恢复后的牙周健康指标.
主要方法:
- 随机对照试验比较修改的柱和纤维柱在牙冠长度延长后牙下缺陷的牙.
- 记录了临床参数:牙指数,硫出血指数,探测深度,牙移动性,牙乳头高度.
- 对于两种修复类型的垂直和水平负载下,对牙和支结构的应力分布的有限元分析.
主要成果:
- 群体之间在牙指数,血出血指数或探测深度上没有显著差异.
- 经过修改的后组显示出明显更好的牙移动性和牙乳头高度.
- 在牙和牙周组织中观察到的优异应力分布与修改的柱.
结论:
- 经过修改的柱在修复牙下缺陷牙方面表现出卓越的临床疗效和生物机械性能,与用纤维柱延长牙相比.
- 修改后的柱促进更健康的牙周状况和改善应力分布.
- 建议进行长期临床观察,以确认持续的益处.
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