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https://health.usnews.com/wellness/aging-well/articles/2017-01-13/healthy-aging-oral-health-for-older-adults
https://www.mouthhealthy.org/en/az-topics/e/dietary-acids-and-your-teeth
https://www.mouthhealthy.org/en/nutrition/good-foods-slideshow
https://www.mouthhealthy.org/en/az-topics/f/fluoride
http://www.ada.org/~/media/ADA/Publications/Files/patient_82.pdf?la=en
http://www.toothwisdom.org/resources/entry/root-cavitieshttps://www.tcdentalpros.com/wp-admin/post.php?post=1505&action=edit#edit_timestamp
http://www.deardoctor.com/articles/nutrition-and-oral-health/
http://www.toothwisdom.org/resources/entry/fluoride-for-older-adults