The U.S. Academy of General Dentistry found that eating cheese increased production of alkaline saliva
Also found that chewing cheese created a protective layer around teeth which kept remaining acid at bay
But mouthwash was still found to be the best protection against cavities
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image from istockphoto.com |
Cheese helps reduce cavities forming in teeth because it neutralises plaque acid, according to a new study.
Researchers
found that the fermented dairy product made the mouth more alkaline,
which in turn reduced the need for dental treatment.
They also discovered that cheese created a protective film around teeth.
The higher the pH level (the more
alkaline) on the surface of teeth, the more teeth are protected against
dental erosion, which causes cavities and leads to fillings,
said the study.
The research, carried out by the Academy of General Dentistry in the U.S., divided 68 children aged between 12 and 15 into three groups.
One
group was asked to consume a daily portion of cheddar, another a
sugar-free yoghurt, and another a glass of milk, followed by a mouth
rinse.
The pH levels on their dental plaque
were measured both before the test and then ten minutes, 20 minutes and
half an hour afterwards.
Those
who ate the yoghurt or drank the milk showed no changes to the pH
levels in their mouths at any of the intervals, said lead researcher
Vipul Yadav.
But those who ate the cheese showed a 'rapid' increase in pH level at each of the time intervals.
The researchers believe that eating
cheese increases the amount of saliva in the mouth which is the body's
natural way of maintaining a healthy pH level.
Added
to this, cheese releases chemical compounds that can form a protective
layer on teeth which further protects it against the acids that attack
enamel.
A spokesman for the
research said: 'The groups who consumed milk and sugar-free yogurt
experienced no changes in the pH levels in their mouths.
'Subjects
who ate cheese, however, showed a rapid increase in pH levels at each
time interval, suggesting that cheese has anti-cavity properties.'
The results were published in the journal General Dentistry.
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