在体内对单元粘合剂支架结合失效率的比较评估
Arshya A Kumar1, Ravindra Kumar Jain1, T R Prasanna Aravind1
1Department of Orthodontics and Dentofacial Orthopedics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India.
概括
基于双甲基基酸盐 (BisGMA) 的粘合剂在正牙治疗中显示出比基于基乙基酸盐 (HEMA) 的粘合剂更高的支架键失败率. 与下弓相比,大弓中债券失败的频率较低.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙科材料科学 牙科材料科学
- 粘合式牙科 粘合式牙科
背景情况:
- 单组件粘合剂通过消除对蚀刻的牙上进行初级的必要性,简化了正义牙科支架的粘合.
- 之前的体外研究表明,这些简化系统的可接受剪接强度.
研究的目的:
- 为了比较基于基乙基甲酸盐 (HEMA) 和基于双A-甘基甲酸盐 (BisGMA) 的单组分正义牙粘合剂的支架键失效率.
- 在体内6个月内评估粘合性能.
主要方法:
- 用50名成年受试者使用分口设计,将1080个金属支架粘合在一起.
- 支架使用基于HEMA (Aqualine LC) 或基于BisGMA (Orthofix SPA) 的单元接剂粘合在一起.
- 在6个月后评估了支架债券失败情况,使用千平方测试进行统计分析.
主要成果:
- 总体支架债券失败率 (BFR) 为6.02%.
- 与基于BisGMA的粘合剂 (7.8%) 相比,基于HEMA的粘合剂的BFR显著降低 (4.16%) (P < 0.05).
- 大牙的结合失败明显少 (4.28%) 比下牙的结合失败 (7.75%) (P < 0.05).
结论:
- 在这项为期6个月的体内研究中,基于BisGMA的粘合剂显示了比基于HEMA的粘合剂更高的债券失败发生率.
- 与下弓相比,大弓经历了较少的支架键失败.
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