The online journal BMJ Open published the results of a study conducted in Stockholm, on the basis of which we can conclude that the plaque increases the risk of premature death from cancer.
As you know, the plaque consists of bacteria and their metabolic products and covers all surfaces of the tooth, including the interdental spaces. It is believed to be a sign of some systemic diseases. The study authors set out to determine whether dental plaque is a risk factor for premature death from cancer. This thought gave them a version that causal factors of 1-5 types of cancer are inflammation and infection.
Researchers made the observation of 1400 adults of both sexes, living in Stockholm from 1985 to 2009. The age of all participants at the beginning of the experiment was 30 to 40 years. All underwent standard survey, which identified additional risk factors, such as Smoking and even level of wealth. Assessed the level of oral hygiene is the presence of plaque, Tartar, gum disease. Extracted teeth they had, as signs of gingivitis, but the tooth was in a large quantity.
In 2009, died of cancer 58 people, 35.6% of them women. The average age of the deceased women 61 years, the dead men - 60 years. Most of the women had developed breast cancer, cancer in men was struck by the different organs.Index of plaque in those who died from cancer - 0,84-0,91, this is a high figure, plaque covered most of the surface of the teeth. Those who survived the plaque index was below - 0,66-of 0.67, which suggests that the plaque covered only pricesnew area of the teeth.
According to the researchers, were taken into account other risk factors: lower level of education, Smoking, frequency of dental visits, as well as low income".
After it was revealed that in men, the relationship between the amount of plaque and the risk of dying from cancer has remained fairly strong.
The authors warn that the results of the study do not prove that plaque caused or contributed to the development of cancer.
"Our research hypothesis, which was confirmed and led to the conclusion that the low level of hygiene, expressed in a large number of dental plaque, was associated with increased mortality from cancer," they write. - Further research is needed to determine whether there is a causal relationship in the observed factors.