预制不钢皇冠在不同自闭柜周期的破裂的比较评估
Palanisamy Sowkarthicaa1, Veerabadhran M Mathian1, Murugesan Gawthaman1
1Department of Pedodontics and Preventive Dentistry, Vivekanandha Dental College for Women, Namakkal, Tamil Nadu, India.
International journal of clinical pediatric dentistry
|September 4, 2023
概括
重复的自闭塞增加了不钢皇冠的裂痕,可能会影响治疗的成功. 为了确保最佳的临床结果,在一次或两次灭菌周期后丢弃冠状.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程是生物材料的工程.
- 灭菌技术 灭菌技术
背景情况:
- 预制的不钢 (SS) 冠冕在儿科牙科中广泛使用.
- 绝育对于感染控制至关重要,自闭塞是常见的方法.
- 了解绝育对SS冠状完整性的长期影响至关重要.
研究的目的:
- 为了评估和比较在多个自闭体循环后预制的SS冠上的裂纹程度.
- 为了确定灭菌频率对SS冠的结构完整性的影响.
主要方法:
- 十五个SS皇冠经历了0,1,3,5和7个自闭柜周期 (121°C,15psi,20分钟).
- 在每个周期后,在40×立体显微镜下检查每个冠状的 mesial 表面.
- 用维克夏姆的标准来评估Crazing.
主要成果:
- 一个单一的自闭柜循环没有诱导可见的裂.
- 增加的自闭体循环数与更高的发生率和破裂的严重程度相关.
- 在经过多次绝育的SS冠上观察到显著的表面变化.
结论:
- 自闭体循环的数量显著影响预制SS冠的表面完整性.
- 为了保持结构完整性并确保有利的治疗预后,在临床实践中,预制的SS冠应该在一到两次绝育周期后丢弃.
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