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Efficacy of Combining an Extraoral High-Volume Evacuator with Preprocedural Mouth Rinsing in Reducing Aerosol Contamination Produced by Ultrasonic Scaling

Author

Listed:
  • Shoji Takenaka

    (Division of Cariology, Operative Dentistry and Endodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan)

  • Maki Sotozono

    (Division of Cariology, Operative Dentistry and Endodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan)

  • Asaka Yashiro

    (Division of Cariology, Operative Dentistry and Endodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan)

  • Rui Saito

    (Division of Cariology, Operative Dentistry and Endodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan)

  • Niraya Kornsombut

    (Division of Cariology, Operative Dentistry and Endodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan)

  • Traithawit Naksagoon

    (Division of Cariology, Operative Dentistry and Endodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan)

  • Ryoko Nagata

    (Division of Cariology, Operative Dentistry and Endodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan)

  • Takako Ida

    (Division of Cariology, Operative Dentistry and Endodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan)

  • Naoki Edanami

    (Division of Cariology, Operative Dentistry and Endodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan)

  • Yuichiro Noiri

    (Division of Cariology, Operative Dentistry and Endodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan)

Abstract

The coronavirus disease pandemic has afforded dental professionals an opportunity to reconsider infection control during treatment. We investigated the efficacy of combining extraoral high-volume evacuators (eHVEs) with preprocedural mouth rinsing in reducing aerosol contamination by ultrasonic scalers. A double-masked, two-group, crossover randomized clinical trial was conducted over eight weeks. A total of 10 healthy subjects were divided into two groups; they received 0.5% povidone-iodine (PI), essential oil (EO), or water as preprocedural rinse. Aerosols produced during ultrasonic scaling were collected from the chest area (PC), dentist’s mask, dentist’s chest area (DC), bracket table, and assistant’s area. Bacterial contamination was assessed using colony counting and adenosine triphosphate assays. With the eHVE 10 cm away from the mouth, bacterial contamination by aerosols was negligible. With the eHVE 20 cm away, more dental aerosols containing bacteria were detected at the DC and PC. Mouth rinsing decreased viable bacterial count by 31–38% (PI) and 22–33% (EO), compared with no rinsing. The eHVE prevents bacterial contamination when close to the patient’s mouth. Preprocedural mouth rinsing can reduce bacterial contamination where the eHVE is positioned away from the mouth, depending on the procedure. Combining an eHVE with preprocedural mouth rinsing can reduce bacterial contamination in dental offices.

Suggested Citation

  • Shoji Takenaka & Maki Sotozono & Asaka Yashiro & Rui Saito & Niraya Kornsombut & Traithawit Naksagoon & Ryoko Nagata & Takako Ida & Naoki Edanami & Yuichiro Noiri, 2022. "Efficacy of Combining an Extraoral High-Volume Evacuator with Preprocedural Mouth Rinsing in Reducing Aerosol Contamination Produced by Ultrasonic Scaling," IJERPH, MDPI, vol. 19(10), pages 1-10, May.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:10:p:6048-:d:816831
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    References listed on IDEAS

    as
    1. Alvaro Garcia-Sanchez & Juan-Francisco Peña-Cardelles & Esther Ordonez-Fernandez & María Montero-Alonso & Naresh Kewalramani & Angel-Orión Salgado-Peralvo & Dániel Végh & Angélica Gargano & Gabriela P, 2022. "Povidone-Iodine as a Pre-Procedural Mouthwash to Reduce the Salivary Viral Load of SARS-CoV-2: A Systematic Review of Randomized Controlled Trials," IJERPH, MDPI, vol. 19(5), pages 1-9, March.
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    Cited by:

    1. Michael Schalli & Birgit Kogler & Tillo Miorini & Michael Gehrer & Franz F. Reinthaler, 2023. "High-Speed Dental Instruments: An Investigation of Protein-Contaminated Dental Handpieces with the Bicinchoninic Acid Assay in Dental Offices in Styria, Austria," IJERPH, MDPI, vol. 20(3), pages 1-13, January.
    2. Maria Antoniadou & Anestis Intzes & Christos Kladouchas & Iliana Christou & Stavroula Chatzigeorgiou & Martha Plexida & Valantis Stefanidakis & Ioannis Tzoutzas, 2023. "Factors Affecting Water Quality and Sustainability in Dental Practices in Greece," Sustainability, MDPI, vol. 15(11), pages 1-23, June.

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