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Bacterial contamination of air and surfaces during dental procedures-An experimental pilot study using . | LitMetric

Bacterial contamination of air and surfaces during dental procedures-An experimental pilot study using .

Infect Control Hosp Epidemiol

Clinic of Conservative and Preventive Dentistry, Center for Dental and Oral Medicine and Maxillo-Facial Surgery, University of Zurich, Zurich, Switzerland.

Published: May 2024

AI Article Synopsis

  • - The study investigated the spread of antimicrobial-resistant bacteria during dental procedures, focusing on the effects of different suction devices and rinsing solutions on microbial transmission in the oral cavity.
  • - Using a simulated model, researchers tested conventional saliva ejectors and a prototype device, finding that traditional methods with airflow were linked to airborne bacterial contamination, while ultrasonic devices showed minimal risk.
  • - Results indicated that chlorhexidine as a rinsing solution effectively reduced bacterial counts, and surface contamination was infrequently observed, suggesting specific dental treatments can lower the risk of airborne transmission.

Article Abstract

Objective: The oral cavity contains numerous microorganisms, including antimicrobial-resistant bacteria. These microorganisms can be transmitted via respiratory particles from patients to healthcare providers and vice versa during dental care. We evaluated the spread of during standardized dental procedures using different scaling devices and rinsing solutions.

Methods: During systematic therapy for dental biofilm removal (guided biofilm therapy), using an airflow or ultrasound device to a model simulation head. suspension was injected into the mouth of the model to mimic saliva. Different suction devices (conventional saliva ejector or a prototype) and rising solutions (water or chlorhexidine) were used. To assess contamination with , an air-sampling device was placed near the oral cavity and samples of surface areas were collected.

Results: was only detected by air sampling when the conventional saliva ejector with airflow was used. No growth was observed during treatments with the ultrasonic piezo instrument or the prototype suction device. Notably, a rinsing solution of chlorhexidine digluconate decreased the bacterial load compared to water. Surface contamination was rarely detected (1 of 120 samples).

Conclusions: Although our findings indicate potential airborne bacterial transmission during routine prophylactic procedures, specific treatment options during biofilm removal appear to reduce air contamination. These options include ultrasonic piezo devices or the prototype suction device. The use of chlorhexidine reduced the CFU counts of detected by air sampling. Surface contamination during dental procedures was a rare occurrence.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11027080PMC
http://dx.doi.org/10.1017/ice.2023.271DOI Listing

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