精确控制数字牙科单元以减少气溶和喷产量:未来流行病的新挑战
Yuedi Yu1, Xueling Wu2, Yang Sun3
1College of Dental Medicine, Columbia University, New York, NY, 10032, USA.
BMC oral health
|February 10, 2024
概括
牙科手工件的速度和冷却在手术过程中显著影响气溶和喷的传播. 较低的速度和有限的水量降低了污染风险,保护牙科工作人员和患者免受SARS-CoV-2等空气传播病毒的影响.
科学领域:
- 口腔和牙面部外科手术
- 传染病传播 传染病传播
- 牙科公共卫生 牙科公共卫生
背景情况:
- 在牙科手术期间评估严重急性呼吸系统综合征冠状病毒2 (SARS-CoV-2) 的传播风险至关重要.
- 模拟的SARS-CoV-2 (HexaPro尖端蛋白质等离子体) 用于评估气溶和滴滴传播.
- 研究的关键参数包括冷却,手工件速度和接近污染源.
研究的目的:
- 在模拟牙科手术过程中量化气溶和喷雾物生成.
- 为了确定牙科手具速度和冷却对病毒颗粒传播的影响.
- 在牙科手术室内确定污染的高风险区域.
主要方法:
- 牙科手术是在一个人形上模拟的,使用一个数字牙科单元,具有不同的手工件速度和冷却.
- 一个尖尖的等离子体 (S6P) 用于模拟滴和气溶中的病毒载量.
- 在不同距离和角度收集的过纸和培养皿评估了喷点和病毒载量.
主要成果:
- 气溶喷造成局部污染区域高达60厘米,高风险在30厘米范围内.
- 手持器的速度显著影响了气溶喷点和病毒载量 (P < 0.05).
- 最高的污染发生在每分钟4万转时;最低在每分钟1万转时,操作员的位置受到影响最大.
结论:
- 尽量减少牙科手工件的速度和使用有限的冷却水可以减少气溶和病毒的传播.
- 对牙科提供者和助手来说,全面的个人防护设备是必不可少的.
- 实施这些措施对于提高牙科诊所的安全至关重要.
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