芒人群是至今国家尚未定族名的一种边疆少数民族，我科对72．6％的芒人进行头面牙颌形态调查。发现该人群头面、颌骨发育良好，牙排列整齐，中性占85．4％，错率14．6％，包括智齿在内的个别牙错位率22．0％。龋患率42．2％，龋均1．22，牙周患病率包括龈出血、牙结石、牙周溢脓为42．9％。首次揭示了芒人群头面牙颌形态的流行病学现状。 The Manchurian population is a border ethnic minority that has not yet been identified by the state so far. Our department conducted a survey of the mandibular and mandibular morphology of 72.6% of Manchu people. The head of the crowd was found, jaw jaws developed well, teeth arranged neatly, neutral accounted for 85.4%, the error rate of 14.6%, including wisdom teeth, including the number of individual misalignment rate of 22.0%. Caries rate was 42.2% and caries was 1.22. The prevalence of periodontal disease included gingival bleeding, calculus and 42.9% of periodontal overflow. For the first time, the epidemiological status of mandibular dento-mandibular form was revealed.