Collar badge Canadian Army Dental Corps

General Order No 63 was issued on 13 May 1915, authorizing the Canadian Army Dental Corps (CADC) as a separate corps. In anticipation of this general order, on 29 March 1915 authorization was published to appoint "one officer in charge of all dental surgeons, to be attached to divisional headquarters …, to be designated 'Chief Dental Surgeon' as well as an establishment of dental officers for brigades, divisions, base hospitals and field ambulances. This provided a war-time establishment for the new CADC, with a lieutenant-colonel Chief Dental Surgeon for each division. A few days later Colonel John Alexander Armstrong was promoted, named the Director of Dental Services, and assigned to Canadian Corps Headquarters in London."[1] After the Second World War, a series of coloured berets were adopted, with other arms and services wearing midnight blue berets, with a large coloured "flash" in corps colours – emerald green for the Royal Canadian Dental Corps