A few resources: The Economist, “Microbial ecosystems in the mouth and gut are linked to many ills”: https://www.economist.com/science-and-technology/2021/02/1

A few resources: The Economist, “Microbial ecosystems in the mouth and gut are linked to many ills”: https://www.economist.com/science-and-technology/2021/02/10/microbial-ecosystems-in-the-mouth-and-gut-are-linked-to-many-ills https://www.economist.com/science-and-technology/2021/02/10/... Personal health care expenditures, by source of funds and type of expenditure: United States, 2007–2017: https://www.cdc.gov/nchs/data/hus/2018/fig18.pdf https://www.cdc.gov/nchs/data/hus/2018/fig18.pdf US Dental care expenditures 2017: https://www.ada.org/~/media/ADA/Science%20and%20Research/HPI/Files/HPIBrief_1217_1.pdf?la=en https://www.ada.org/~/media/ADA/Science%20and%20Research/HPI... Healthcare expenditure trends in the US: https://www.cdc.gov/nchs/data/hus/2018/044.pdf https://www.cdc.gov/nchs/data/hus/2018/044.pdf US Surgeon General Report on Oral Health (2000): https://www.nidcr.nih.gov/sites/default/files/2017-10/hck1ocv.%40www.surgeon.fullrpt.pdf https://www.nidcr.nih.gov/sites/default/files/2017-10/hck1oc... The human oral microbiome in health and disease: from sequences to ecosystems: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7074908/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7074908/ Oral microbiota of periodontal health and disease and their changes after nonsurgical periodontal therapy: https://www.nature.com/articles/s41396-017-0037-1 https://www.nature.com/articles/s41396-017-0037-1 ADA Periodontitis stats: https://www.ada.org/en/publications/ada-news/2018-archive/june/july-jada-periodontitis-remains-prevalent-in-us-adults https://www.ada.org/en/publications/ada-news/2018-archive/ju... The “Gum–Gut” Axis in Inflammatory Bowel Diseases: A Hypothesis-Driven Review of Associations and Advances: https://www.frontiersin.org/articles/10.3389/fimmu.2021.620124/full https://www.frontiersin.org/articles/10.3389/fimmu.2021.6201...