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本文回顾性地阅读了1700例门诊患者上、下颌第一、二恒磨牙的X光牙片,旨在探讨根分叉区病变的发生率及发病因素。结果表明根分叉区病变的总发病率为42.97％,共有1052个牙受损;其中下颌第一恒磨牙发病率最高,占54.37％(57.2/1052),伴发牙周病变牙为78.8％(829/1052),三度以上龋坏者占36.03％(379/1052)。结果提示,根分叉区病变发病率较高,应引起临床口腔科医师重视。
This retrospectively read the 1700 cases of outpatients, the mandibular first and second permanent molars X-ray teeth, to explore the incidence of root bifurcation lesions and the incidence of factors. The results showed that the total morbidity of root bifurcation lesions was 42.97%, a total of 1052 teeth were impaired. Among them, the highest incidence of mandibular first permanent molars was 54.37% (57.2 / 1052) and the periodontal lesions were 78.8% (829/1052), caries more than three degrees accounted for 36.03% (379/1052). The results suggest that the higher incidence of root bifurcation lesions should be caused by clinical dentists attention.