Okayama University focused on the increase in dental caries in university students and analyzed the relationship between the bacterial flora contained in saliva and the increase in dental caries, and found that the proportion of multiple types of bacteria was higher in students with increased dental caries. rice field.
According to research using a next-generation sequencer that can identify bacteria in detail, it is said that various bacteria cooperate in the onset and deterioration of dental caries.However, most of the studies focused on children, and few focused on the caries of young people.
This research was carried out by Assistant Professor Yoko Fukuhara, Department of Oral Morphology, Graduate School of Biomedical Sciences, Okayama University, Professor Manabu Morita, Department of Preventive Dentistry, Okayama University, and Professor Yoshiaki Iwasaki, Health Administration Center, Okayama University.In past research, the research group has announced that changes in living environment and habits tend to increase dental caries during college.This time, we analyzed the relationship between the increase in dental caries in college and the bacterial flora in the oral cavity using saliva.
The research group collected saliva and conducted dental examinations for university students before graduation, extracted genes in saliva, and identified detailed bacteria.We also compared the results of dental examinations at the time of admission to analyze the differences in bacterial distribution between students who had increased dental caries and those who did not.
As a result, there was no difference in the number and types of bacteria contained in saliva of students with increased and non-increased dental caries, but as a result of comparing the bacterial flora, university students with increased dental caries had multiple bacteria. It turned out that the ratio was high.Bacteria other than mutans streptococci, which are generally said to be involved in dental caries, were also identified.
Regarding this research, the research group said, "Especially in Japan, many people start living alone only after becoming a university student, and because their living environment and habits are liable to change, it is easy for them to get cavities. Let's take good care of your mouth! "
Paper information:[International Journal of Environmental Research and Public Health] Caries Increment and Salivary Microbiome during University Life: A Prospective Cohort Study
