Simulation of the spatiotemporal distribution of emitted droplets during air-powder-polishing and ultrasonic scaling

被引:0
|
作者
Xing, Chaojie [1 ,2 ,3 ]
Ai, Zhengtao [2 ,3 ]
Mak, Cheuk Ming [4 ]
Wong, Hai Ming [5 ]
机构
[1] Henan Univ Technol, Coll Civil Engn & Architecture, Zhengzhou 450001, Peoples R China
[2] Hunan Univ, Dept Civil Engn, Changsha 410082, Peoples R China
[3] Hunan Univ, Natl Ctr Int Res Collaborat Bldg Safety & Environm, Changsha, Hunan, Peoples R China
[4] Hong Kong Polytech Univ, Dept Bldg Environm & Energy Engn, Hung Hom, Hong Kong, Peoples R China
[5] Univ Hong Kong, Fac Dent, Pok Fu Lam, Hong Kong, Peoples R China
来源
JOURNAL OF BUILDING ENGINEERING | 2025年 / 103卷
关键词
Ultrasonic scaling instruments (USI); Powder jet handpieces (PJH); Fallow time (FT); Computational fluid dynamics (CFD); Respiratory infectious diseases; AEROSOL; DEVICE;
D O I
10.1016/j.jobe.2025.112054
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The dispersion characteristics of droplets during ultrasonic scaling and air-powder-polishing have not been clearly revealed. In this study, the Computational Fluid Dynamics (CFD) simulation method was used to investigate the spatiotemporal distribution characteristics of droplets using both the original method and the simplified method. In the original method, incisors and side teeth in the maxillary and mandibular were selected as emission positions for droplets. Emission angles and directions were based on experimental results. The simplified method involved a fixed emission position at the center of the mouth, with droplets emitted vertically upward at a coneshaped angle of 30 degrees. The results (original method) showed that during short duration air-powderpolishing (6 min), deposition was the primary outcome of droplets at the end of air-powderpolishing (80.7 %), followed by suspension (11.7 %) and escape (7.6 %). During the long duration ultrasonic scaling (30 min), similar distribution characteristics were observed compared to air-powder polishing. The main difference was a slightly lower cumulative suspension fraction at the stopping ultrasonic scaling and a slightly higher cumulative deposition fraction, with comparable durations of Fallow time (FT) being 31 and 32 min respectively. Regardless of whether it was air-powder-polishing or ultrasonic scaling, the simplified method increased medical workers' risk for inhaling emitted droplets by 1.2 times, compared to the original method. This study not only enhances understanding of the spatiotemporal distribution of droplets during dental treatments but also contributes to developing control measures for mitigating risks in dental clinics.
引用
收藏
页数:19
相关论文
共 50 条
  • [1] EFFECT OF ULTRASONIC SCALING AND AIR POLISHING ON RESTORATION MARGINS
    GORFIL, C
    NORDENBERG, D
    LIBERMAN, R
    BENAMAR, A
    JOURNAL OF DENTAL RESEARCH, 1988, 67 (04) : 718 - 718
  • [2] Efficacy of glycine powder air polishing in comparison with sodium bicarbonate air polishing and ultrasonic scaling - a double-blind clinico-histopathologic study
    Simon, C. J.
    Venkatesh, P. Munivenkatappa Lakshmaiah
    Chickanna, R.
    INTERNATIONAL JOURNAL OF DENTAL HYGIENE, 2015, 13 (03) : 177 - 183
  • [3] Translucency and Color Stability of a Simplified Shade Nanohybrid Composite after Ultrasonic Scaling and Air-Powder Polishing
    Babina, Ksenia
    Polyakova, Maria
    Sokhova, Inna
    Doroshina, Vladlena
    Zaytsev, Alexandr
    Nikonova, Elena E.
    Budylin, Gleb S.
    Shirshin, Evgeny A.
    Tantardini, Christian
    Novozhilova, Nina
    NANOMATERIALS, 2022, 12 (24)
  • [4] Spatiotemporal Distribution of Aerosols Generated by Using Ultrasonic Scaling Instrument
    Xing C.
    Ai Z.
    Shen L.
    Han Y.
    Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences, 2023, 50 (01): : 219 - 227
  • [5] Effect of powder air polishing and ultrasonic scaling on the marginal and internal interface (tooth-veneer) of ceramic veneers: an in vitro study
    Fuchs, Florian
    Mayer, Laura Antonia
    Unterschuetz, Lena
    Ziebolz, Dirk
    Oberueck, Nadia
    Schulz-Kornas, Ellen
    Hahnel, Sebastian
    Koenig, Andreas
    CLINICAL ORAL INVESTIGATIONS, 2024, 28 (12)
  • [6] Effect of ultrasonic scaling and air polishing on the surface roughness of polyetheretherketone (PEEK) materials
    Demirci, Fatih
    Erdem, Merve Birgealp
    Tekin, Samet
    Caliskan, Cevdet
    AMERICAN JOURNAL OF DENTISTRY, 2022, 35 (04): : 200 - 204
  • [7] The Effect of Ultrasonic Scaling and Air-Powder Polishing on the Roughness of the Enamel, Three Different Nanocomposites, and Composite/Enamel and Composite/Cementum Interfaces
    Babina, Ksenia
    Polyakova, Maria
    Sokhova, Inna
    Doroshina, Vladlena
    Arakelyan, Marianna
    Zaytsev, Alexandr
    Novozhilova, Nina
    NANOMATERIALS, 2021, 11 (11)
  • [8] THE USE OF CHLORHEXIDINE IN REDUCING BACTERIAL AIR CONTAMINATION DURING ULTRASONIC SCALING
    MUKIWA, WB
    RUSSELL, KA
    JOURNAL OF DENTAL RESEARCH, 1983, 62 (04) : 436 - 436
  • [9] Simulation and experimental research on the distribution of water droplets in dielectrophoresis-assisted water disdissdution polishing process
    Miao Y.-Q.
    Wang X.
    Deng Q.-F.
    Zhou W.-H.
    Mao Y.-C.
    Huang L.-B.
    Yuan J.-L.
    Surface Technology, 2021, 50 (10): : 373 - 383
  • [10] Subgingival debridement of periodontal pockets by air polishing in comparison with ultrasonic instrumentation during maintenance therapy
    Wennstroem, Jan L.
    Dahlen, Gunnar
    Ramberg, Per
    JOURNAL OF CLINICAL PERIODONTOLOGY, 2011, 38 (09) : 820 - 827