Capparè Paolo, D'Ambrosio Raffaele, De Cunto Renato, Darvizeh Atanaz, Nagni Matteo, Gherlone Enrico
Department of Dentistry, IRCCS San Raffaele Hospital, 20132 Milan, Italy.
Dental School, Vita-Salute San Raffaele University, 20132 Milan, Italy.
Int J Environ Res Public Health. 2022 Apr 23;19(9):5139. doi: 10.3390/ijerph19095139.
The aim of the present study was to evaluate the efficacy of an air purifier device (professional XXl inn-561 innoliving) with HEPA 14 filter in reducing the number of suspended particles generated during dental procedures as a vector of COVID-19 transmission. The survey was conducted on 80 individuals who underwent Oral Surgery with dental Hygiene Procedures, divided into two groups based on the operational risk classification related to dental procedures: a Test Group (with application of filtering device) and a Control Group (without filtering device). All procedures were monitored throughout the clinical controls, utilising professional tools such as molecular particle counters (Lasair III 350 L 9.50 L/min), bacteriological plates (Tryptic Soy Agar), sound meters for LAFp sound pressure level (SPL) and LCpk instantaneous peak level. The rate of suspended particles, microbiological pollution and noise pollution were calculated. SPSS software was used for statistical analysis method. The results showed the higher efficacy of the TEST Group on pollution abatement, 83% more than the Control fgroup. Additionally, the contamination was reduced by 69-80%. Noise pollution was not noticeable compared to the sounds already present in the clinical environment. The addition of PAC equipment to the already existing safety measures was found to be significantly effective in further microbiological risk reduction.
本研究的目的是评估一种配备高效空气过滤器（HEPA 14）的空气净化器设备（专业XXl inn - 561 innoliving）在减少牙科手术过程中产生的作为新冠病毒传播载体的悬浮颗粒数量方面的功效。该调查针对80名接受口腔外科手术及口腔卫生程序的个体进行，根据与牙科手术相关的操作风险分类将其分为两组：试验组（使用过滤设备）和对照组（不使用过滤设备）。在整个临床控制过程中，使用专业工具对所有程序进行监测，如分子粒子计数器（Lasair III 350 L 9.50 L/min）、细菌培养皿（胰蛋白胨大豆琼脂）、用于测量LAFp声压级（SPL）和LCpk瞬时峰值水平的声级计。计算悬浮颗粒、微生物污染和噪声污染的发生率。使用SPSS软件进行统计分析。结果显示试验组在减少污染方面效果更佳，比对照组高出83%。此外，污染减少了69 - 80%。与临床环境中已有的声音相比，噪声污染并不明显。发现在现有安全措施基础上增加PAC设备在进一步降低微生物风险方面具有显著效果。
