In February 2019 researchers from China and the UK published their review of the medical scientific literature to assess the association between tooth brushing and risk of diabetes type 2. A total of 20 studies involving 161,189 individuals and 10,884 individuals with diabetes type 2 were included in the review. Results showed that compared with the highest tooth brushing frequency, the lowest level was significantly associated with an increased risk of diabetes type 2.
Fu W et al. Meta-analysis on the association between the frequency of tooth brushing and diabetes mellitus risk. Diabetes Metab Res Rev. 2019 Feb 13:e3141. [Epub ahead of print]