Reichart P, Tantiniran D
Oral Surg Oral Med Oral Pathol. 1975 Apr;39(4):615-21. doi: 10.1016/0030-4220(75)90203-0.
Dens evaginatus in the Thai had not been described previously. The incidence of this abnormality was found to be 1.01 per cent. The male to female ratio was 1:1.83, a figure which is comparable to findings among the Chinese, since the two groups are closely related. The evagination was observed in fifty-one patients, with 133 premolars and one molar being affected. Thirty-six premolar showed periapical pathosis which was classified into clinical and radiographic features. The frequency of affection of the different premolars was described, together with the histologic appearances of the anomaly. Pathogenesis of dens evaginatus in the Thai seems to be uniform, determined by racial and genetic factors.
泰国人中的畸形中央尖此前未曾有过描述。发现这种异常的发生率为1.01%。男女比例为1:1.83，这一数字与中国人的研究结果相当，因为这两个群体关系密切。在51例患者中观察到畸形中央尖，133颗前磨牙和1颗磨牙受到影响。36颗前磨牙出现根尖周病变，根据临床和影像学特征进行分类。描述了不同前磨牙的受累频率以及该异常的组织学表现。泰国人畸形中央尖的发病机制似乎是一致的，由种族和遗传因素决定。
