Department of Pedodontics and Preventive Dentistry, Faculty of Dentistry, Srinakharinwirot University.
Department of Stomatology, Faculty of Dentistry, Srinakharinwirot University.
J Oral Sci. 2022 Oct 1;64(4):271-273. doi: 10.2334/josnusd.22-0162. Epub 2022 Sep 7.
This study aimed to test the face seal of a surgical mask modified using a custom-made mask fitter or by sealing all borders with micropore tape, in comparison to the N95 mask as a gold standard.
Fifteen participants were assigned to wear an N95 mask, a surgical mask sealed with a mask fitter, and a surgical mask sealed with micropore tape. A quantitative fit test was performed using a Portacount respirator fit tester in 4 different actions: bending over, talking, moving the head from side to side, and moving the head up and down.
The N95 showed the highest overall fit factor score (134.67 ± 66.62), passing Occupational Safety and Health Administration (OSHA) standards. The surgical mask alone had the lowest overall fit factor score of 4.73 ± 3.30. Modification of the surgical mask using a mask fitter or micropore tape significantly increased the overall fit factor to 35.33 ± 14.58 and 29.33 ± 9.73, respectively. This pattern was similar for all exercises.
The N95 was the only mask type that passed the OSHA standard for protection. Use of a mask fitter or micropore tape significantly increased the face seal of a surgical mask. This could offer useful levels of protection during a non-aerosol dental procedure.
本研究旨在测试使用定制口罩贴合器或用微孔胶带密封所有边缘对手术口罩进行改良后的口罩贴合度，并与 N95 口罩（金标准）进行比较。
将 15 名参与者分配佩戴 N95 口罩、使用口罩贴合器密封的手术口罩和使用微孔胶带密封的手术口罩。在 4 种不同动作（弯腰、说话、左右摇头和上下点头）下，使用 Portacount 呼吸器 fit 测试仪进行定量 fit 测试。
N95 口罩总体 fit 因子评分最高（134.67±66.62），符合职业安全与健康管理局（OSHA）标准。单独使用手术口罩的总体 fit 因子评分最低，为 4.73±3.30。使用口罩贴合器或微孔胶带对手术口罩进行改良可分别显著提高总体 fit 因子，达到 35.33±14.58 和 29.33±9.73。所有练习的模式都相似。
N95 是唯一通过 OSHA 标准保护的口罩类型。使用口罩贴合器或微孔胶带可显著提高手术口罩的面部贴合度。这可为非气溶胶牙科手术提供有用的防护水平。
