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Researchers in Denmark have investigated the effect of oral protection against COVID-19. The study shows that mouth guards do not protect as much as previously thought.
But the researchers also cannot establish that they would be completely ineffective.
A large Danish study has been unable to find any meaningful protection against COVID-19 if you wear a mouth guard.
The study, which was published recently, looked at two groups, one of which wore a mouth guard while the other group did not wear a mouth guard.
The researchers only looked at whether people with mouth guards were protected against the virus, and not whether they protected others from infection.
From April to May, more than 6,000 people participated in the study. During that period, it was not mandatory to wear masks in social contexts in Denmark.
In the group without mouth guards, 2.1 percent of participants received crown and 1.8 percent of participants with mouth guards received crown. According to the researchers, the difference between the number of infections, with and without mouth guards, is not large enough to be able to conclude that mouth guards really protect against covid-19.
Photo: ‘lafur Steinar Rye Gestsson / TT NYHETSBYRÅN
People in the Copenhagen metro.
Oral protection indicates 15 to 20 percent protection
– Therefore, the study does not confirm the expected halving of the risk of infection if you wear a mouth guard. The results could indicate 15 to 20 percent protection, the researchers write.
The researchers also emphasize that it is not possible to draw any conclusions about whether mouth guards can spread the virus in public. Therefore, it cannot be ruled out that those who wear mouth guards do not infect others.
– The study also did not show the effect of wearing a mouth guard in situations where it is not possible to maintain the required social distances, the researchers write.
But it is also not possible to say that it would have no effect if the large mass used mouth guards.
Photo: Martin Sylvest / TT NEWS AGENCY
Rigshospitalet.
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