水冷却剂和烧伤类型对纸温度的影响,当切除牙结构和修复性牙科材料时
C Mafrici1, M Kingston2, R Grice3
1Christopher Mafrici, BSc(Hons), DMD, UWA Dental School, The University of Western Australia, Nedlands, WA, Australia.
Operative dentistry
|December 7, 2023
概括
水冷却剂在牙科手术过程中显著降低了内膜温度 (IPT) 的变化,特别是在使用钻石子去除复合材料和合金时. 碳化物钻孔通常会产生较低的IPT变化.
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
- 手术牙科是指手术牙科.
背景情况:
- 在牙科手术过程中肌肉内温度 (IPT) 的变化是对肌肉活力的关键问题.
- 不同的气孔和冷却剂策略可以影响热效应.
- 了解这些影响对于最大限度地减少阳性损伤至关重要.
研究的目的:
- 为了比较使用平裂纹钻石与梨形碳化相比的内部温度 (IPT) 变化.
- 在这些过程中评估水冷却剂 (开启或关闭) 的影响.
- 评估MOD腔室准备,复合树脂去除和合金去除期间的热效应.
主要方法:
- 提取的下牙与热电偶一起被插入到脉腔中.
- 采用具有特定突破 (钻石与碳化物) 的高速手工件,用于腔准备和材料清除.
- 记录了带有和没有水冷却剂的肌肉内温度变化,并使用双向ANOVA进行分析.
主要成果:
- 水冷却剂在MOD准备过程中显著降低了IPT变化,使用的是碳化物冲孔,但不是钻石冲孔.
- 在复合材料和合金去除过程中,碳化钻孔显示IPT变化低于没有冷却剂的钻石钻孔.
- 水冷却剂在复合材料/合金清除过程中有效地减少了钻石钻孔的IPT变化,但在碳化钻孔中却没有.
结论:
- 在牙结构准备过程中,水冷却剂有助于减少碳化突起的IPT变化.
- 相反,水冷却剂在钻石钻孔中有效去除合金和复合材料,但不能用于牙结构制备.
- 碳化物冲孔通常与在没有冷却剂的情况下去除合金和复合材料时比钻石冲孔更低的IPT变化有关.
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