Histology and Embryology for Dental Hygiene
by Laird Sheldahl, Raye Ann Yapp · Mt. Hood Community College / Open Oregon Educational Resources
A free open textbook written for dental hygiene students, in 11 chapters. It goes from cell biology and basic histology to how teeth, enamel and the periodontium develop, with animated figures and linked definitions. Licensed CC BY-NC-SA.
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A 100-page WHO report from 2022 on how common the major oral diseases are worldwide: tooth decay, gum disease, tooth loss and oral cancer. It also covers shared risk factors such as sugar and tobacco, barriers in health systems, and has oral-health profiles for all 194 member states. This is the primary global source on the burden and prevention of oral disease.
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A 2021 NIH report on US oral health over the past 20 years, written by more than 400 contributors. It covers oral disease at each stage of life, prevention, fluoride and sealants, the dental workforce, pain and substance use, and new research. This is the most authoritative free source on oral disease, prevention and dental care. Its sections can be read on their own, and the fact sheets make it usable for beginners. Available as free fact sheets and a full 790-page PDF.
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