Evaluating splatter and settled aerosol during orthodontic debonding: implications for the COVID-19 pandemic.
Evaluating splatter and settled aerosol during orthodontic debonding: implications for the COVID-19 pandemic.
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DOI：
10.1038/s41415-020-2503-9
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发表时间：
2021-01-08
影响因子：
2.6
通讯作者：
Holliday R
中科院分区：
文献类型：
--
作者：
Llandro H;Allison JR;Currie CC;Edwards DC;Bowes C;Durham J;Jakubovics N;Rostami N;Holliday R
牙科手术产生的飞溅物和气溶胶有可能传播SARS-CoV-2等病原体。混合证据存在于正畸程序的气溶胶生成潜力。本研究的目的是评估正畸脱粘过程中飞溅和/或沉降的气溶胶污染。材料与方法将黄绿素染料引入人体模型的口腔中。正畸脱粘进行周围样品收集。使用带牙科吸引器的增速手机清除复合粘合剂。一个积极的控制条件包括水冷，高速空气涡轮冠准备。使用数字图像分析和荧光分光光度分析对样品进行分析。结果荧光分光光度法检测8米实验装置的污染率为阳性对照的3%，图像分析为0%。操作员、助手和人体模型的污染分别为阳性对照的8%、25%和28%。讨论正畸脱粘产生的飞溅和沉降气溶胶主要分布在人体模型的邻近区域。没有观察到广泛的污染。结论正畸脱粘不太可能通过飞溅物和沉降的气溶胶产生广泛的污染，但可能是局部污染。这突出了操作员、助手和患者个人防护设备的重要性。需要进一步的工作来检查悬浮气溶胶。Zusatzmaterial online：Zu diesem Beitrag sind unter 10.1038/s41415-020-2503-9 für autorisierte Leser zusätzliche Dateien abrufbar.正畸脱粘，包括使用带牙科抽吸的低速手机去除复合材料，似乎不会造成广泛分布的沉降污染的风险。剥离过程中产生飞溅和沉淀气溶胶;然而，这主要局限于患者、操作员和助手。需要进一步的工作来检查悬浮在空气中的气溶胶。Zusatzmaterial online：Zu diesem Beitrag sind unter 10.1038/s41415-020-2503-9 für autorisierte Leser zusätzliche Dateien abrufbar.
Introduction Dental procedures produce splatter and aerosol which have potential to spread pathogens such as SARS-CoV-2. Mixed evidence exists on the aerosol-generating potential of orthodontic procedures. The aim of this study was to evaluate splatter and/or settled aerosol contamination during orthodontic debonding. Material and methods Fluorescein dye was introduced into the oral cavity of a mannequin. Orthodontic debonding was undertaken with surrounding samples collected. Composite bonding cement was removed using a speed-increasing handpiece with dental suction. A positive control condition included a water-cooled, high-speed air-turbine crown preparation. Samples were analysed using digital image analysis and spectrofluorometric analysis. Results Contamination across the eight-metre experimental rig was 3% of the positive control on spectrofluorometric analysis and 0% on image analysis. Contamination of the operator, assistant and mannequin was 8%, 25% and 28% of the positive control, respectively. Discussion Splatter and settled aerosol from orthodontic debonding is distributed mainly within the immediate locality of the mannequin. Widespread contamination was not observed. Conclusions Orthodontic debonding is unlikely to produce widespread contamination via splatter and settled aerosol, but localised contamination is likely. This highlights the importance of personal protective equipment for the operator, assistant and patient. Further work is required to examine suspended aerosol. Zusatzmaterial online: Zu diesem Beitrag sind unter 10.1038/s41415-020-2503-9 für autorisierte Leser zusätzliche Dateien abrufbar. Orthodontic debonding, including removal of composite using a slow-speed handpiece with dental suction, appears to pose little risk of widespread distribution of settled contamination. Splatter and settled aerosol was produced during the debonding procedure; however, this was mainly localised to the patient, operator and assistant. Further work is required to examine aerosol which remains suspended in the air. Zusatzmaterial online: Zu diesem Beitrag sind unter 10.1038/s41415-020-2503-9 für autorisierte Leser zusätzliche Dateien abrufbar.
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DOI：
10.1016/s0889-5406(03)00623-1
发表时间：
2003-12-01
影响因子：
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DOI：
10.14219/jada.archive.2012.0064
发表时间：
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期刊：
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影响因子：
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期刊：
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DOI：
10.14219/jada.archive.1994.0093
发表时间：
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影响因子：
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