Comparison of Effectiveness of Portable Air Filtration and Ceiling Type Air Filtration in Reducing of Dental Aerosol in an Open Plan Dental Clinic
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Abstract
The aim of this study was to investigate aerosol accumulation from aerosol generating from dental procedures in open plan clinic under different settings. There were 3 different settings in this study. Setting 1; No air purifying unit (no AP), Setting 2; Ceiling type air purifying units (CAP), and Setting 3; Portable purifying units (PAP). For each setting, 6 dental units in the same area (Bay) were utilized at the open plan clinic. The permanent right maxillary central incisor was drilled according to class III cavity preparation on plastic teeth in mannequin head of each unit. Aerocet 531s, a particle counter, was used to measure the number of aerosols of sizes 0.5μm and 1.0μm. In each setting, air quality was measured at 4 locations around the bay. Number of aerosols were recorded at 6-time intervals: Prior to the procedure, then at 1, 5, 10 minutes during cavity preparation. At the end of 10 minutes, cavity preparations were stopped. Aerosol count was repeated at 15 and 20 minutes. One-way ANOVA was used to compare aerosol accumulation between setting, and One-way ANOVA with repeated measures were used to compare aerosol accumulation between time points within each setting. Statistical analysis showed that the use of PAP significantly reduced aerosol accumulation in open plan clinic compared to no AP. In addition, in specific time points, PAP can statistically lower aerosol accumulation compared to CAP.
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บทความ ข้อมูล เนื้อหา รูปภาพ ฯลฯ ที่ได้รับการลงตีพิมพ์ในวิทยาสารทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่นถือเป็นลิขสิทธิ์เฉพาะของคณะทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่น หากบุคคลหรือหน่วยงานใดต้องการนำทั้งหมดหรือส่วนหนึ่งส่วนใดไปเผยแพร่ต่อหรือเพื่อกระทำการใด ๆ จะต้องได้รับอนุญาตเป็นลายลักษณ์อักษร จากคณะทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่นก่อนเท่านั้น
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