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Dental

1913 1st U.S. dental hygienists course forms, Bridgeport, Ct 1907 Gold dental inlays 1st described by Wm Taggart, who invented them 1875 William Bonwill, patents dental mallet to impact gold into cavities 1875 Electric dental drill is patented by George F Green 1867 Robert T Freeman is 1st black to graduate from Harvard Dental School 1867 1st U.S. dental school, Harvard School of Dental Medicine, established 1848 M Waldo Hanchett patents dental chair 1844 1st dental use of nitrous oxide, Hartford, Ct 1841 Alabama becomes 1st state to license dental surgeons 1840 Organization of American Society of Dental Surgeons founded in New York 1840 Baltimore College of Dental Surgery, 1st in U.S., incorporated 1834 1st U.S. dental society organized (NY) 1806 Chapin Aaron Harris, U.S., found America Society of Dental Surgeons 1769 Horace H Hayden, cofounded 1st dental college

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