Royal Army Dental Corps 10 Group This tie (20827.2 – condition, good) was worn by RADC personnel who had, or were serving in Hong Kong – Number 10 Dental Group. It depicts part of the Corps Crest – a dragon with a sword in its mouth ‘Ex Dentibus Ensis’ (from the teeth a sword). The Chinese emblem of dentistry is theDragon. In Greek mythology Cadmus, the son of Agenor, King of Phoenicia, slew a dragon that had killed his companions. On instructions from Athena he sowed the dragon’s teeth in the ground , and a race of fierce men sprang up called Sparti (Sown). The ‘X’ is the Roman numeral for the figure 10 to signify10 Dental Group RADC