Has been updated: May 13, 2021 18:40 IST
Ohio [US], May 13 (ANI): Are you waiting for your COVID situation to weaken in order to have regular dental examinations for fear of being infected with the virus? New research is here to dispel the misunderstanding that patients and healthcare providers are at high risk of being infected with COVID-19 in the dental office.
SARS-CoV-2 spreads primarily through respiratory droplets and is known to generate large amounts of aerosol in dental care. This can leave the dentist’s chair in a highly permeable area if saliva splatters during cleaning or restorative treatment.
Researchers at Ohio State University set out to determine if saliva was the main source of spray and collected samples from personnel, equipment, and other surfaces that the aerosol reached during various dental treatments. Did. This study was published in the Journal of Dental Research.
By analyzing the genetic composition of the organisms detected in these samples, researchers found that aqueous solutions from irrigation tools rather than saliva were the main source of bacteria and viruses present in spatters and eruptions from the patient’s mouth. I decided that there was.
Even if low levels of SARS-CoV-2 virus were detected in the saliva of asymptomatic patients, the aerosols produced during their treatment showed no signs of coronavirus. In essence, from a microbial point of view, the content of the spray reflected what was in the office environment.
Purnima Kumar, a professor of periodontology at Ohio State University and lead author, said:
“These discoveries should open up our practice, make us feel safe about our environment, and help patients treat their oral and dental problems-you. If you have poor oral health, there is a lot of evidence that you are more susceptible to COVID. “
Previous studies have shown that dental aerosols tend to land on the face of the care provider and on the patient’s chest and can travel up to 11 feet. However, studies of people, equipment, and petri dishes placed around the room found only the presence of bacteria-they rarely identified organisms and where they came from. Did not decide. Saliva has long been a source of estimation.
When saliva was considered potentially deadly at the onset of the pandemic, Kumar decided that a long-term answer was needed to resolve the question of whether saliva was the source of dental aerosols. Did.
The study enrolled 28 patients who received dental implants and restorations using high-speed drilling or ultrasonic scaling procedures at The Ohio State University School of Dentistry from May 4th to July 10th, 2020. Researchers have collected samples of saliva and cleaning agents (water-based). Before each procedure, and 30 minutes after the procedure, wash away the aerosol residue (condensate) from the provider’s face shield, patient bib, and area 6 feet away from the chair.
Later, Kumar et al. Used genomic sequencing techniques that were not available during the Petri dish era. This allowed them to first characterize a microbial mixture of saliva and detergent before the procedure, which could be compared to the microorganisms in the aerosol sample collected later.
With the analytical methods they used, researchers did not have to characterize the microorganisms-instead, they sought a variation of the sequence that provided sufficient information to identify the family of bacteria or viruses to which they belong. ..
“Some of the species that live in your mouth are very similar to those that live in water or the environment. With this method, you don’t even need to know the names of these creatures. They are complete. You can determine if they are genetically identical or genetically different, “Kumal said. “Using this fine-grained approach, we can identify these very subtle differences in the genetic code and identify where they come from very accurately.”
Regardless of the procedure or where the condensate landed, microorganisms from the irrigation agent contribute to about 78% of the microorganisms in the aerosol, and if saliva is present, 0.1% to 1.2% of the microorganisms distributed around the room. Occupied.
Bacteria in saliva were detected in the condensate in only eight cases, five of whom did not use preprocedural mouthwash. The SARS-CoV-2 virus was found in the saliva of 19 patients, but in none of them was detected in aerosols.
The findings are encouraging, but make sense, Kumar said: Detergents dilute saliva (a “thick and viscous” substance) an estimated 20-200 times, and studies reported less than 1 in 2020. Validated by the study of% COVID-19 positive rate dentist..
Dentistry has long been at the forefront of infection control in healthcare, Kumar said. During the pandemic, new protocols include an enhanced ventilation system, an additional aerosol suction device, an N95 mask and face shield on top of the goggles, and extended downtime between patients. She hopes the results of this study will give practitioners and patients peace of mind in the dental office, while still providing strict protection.
“Dentists and hygiene are always at the forefront of the fight against bacteria in the mouth. Of course, they didn’t feel safe because they were frontline workers surrounded by aerosols,” said Teeth. Kumar, who practices periodontal disease, said. She was herself and one of the procedure operators for her research. (ANI)
https://www.aninews.in/news/study-finds-dental-procedures-during-pandemic-are-not-riskier20210513184059/ Studies show that dental treatment during a pandemic is not dangerous