Researchers at the University of Groningen in the Netherlands
found that chewing gum can trap and remove bacteria from the
oral cavity.
In the study, five biomedical engineering students were recruited to chew two different standard types of spearmint gum for various lengths of time ranging from 30 seconds to 10 minutes.
Afterwards, the gum was spit into a cup filled with sterile water to be analysed, 'Medical Daily' reported.
There were were about 100 million bacteria detected on each piece of chewed up gum, with the number increasing as
chewing time increased.
However, after 30 seconds of chewing, the gum starts to lose its adhesiveness, meaning it traps fewer bacteria overall.
"Trapped bacteria were clearly visualised in chewed gum using
scanning-electron-microscopy," researchers said in the paper
published in the journal PLOS ONE.
Previous research has shown that using a new, clean toothbrush
without any toothpaste can remove around 100 million colony-forming units (CFUs) per brush, which would put chewing of gum on par with the mechanical action of a toothbrush.
"Chewing gum however, does not necessarily remove bacteria
from the same sites of the dentition as does brushing or
flossing, therefore its results may be noticeable on a more long-term than those of brushing or flossing," researchers said.
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