文章基本信息

标题：The effect of the dental root on single mandibular bone fractures
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作者：Jongohk Park ; Hyungon Choi ; Donghyeok Shin 等
期刊名称：Archives of Craniofacial Surgery
印刷版ISSN：2287-1152
出版年度：2018
卷号：19
期号：3
页码：190-193
DOI：10.7181/acfs.2018.01963
出版社：KoreaMed Synapse
摘要：This study was conducted to determine the effect of the distributional relationship between dental roots and the mandibular bone on single mandibular bone fractures, which are common craniofacial fractures. This was a retrospective, single-center study in Seoul, Korea. Patients with single mandibular fractures in the symphysis, parasymphysis, body, and angle area, with tooth structure involvement were included. The control group included patients with simple, bone-level lacerations without fractures. In total, 94 patients (72 males and 22 females) were included in the treatment group, and 125 (71 males and 54 females) were included in the control group. The height of the mandibular bone and the dental root were measured with panoramic radiography. The central incisor represented the symphysis area, the canine represented the parasymphysis area, the first molar represented the body area, and the second molar represented the angle area. In the treatment group, symphysis fractures occurred in 16 patients (17%), parasymphysis fractures in 36 patients (38%), body fractures in 17 patients (18%), and angle fractures in 25 patients (27%). The ratios of the dental roots to the total height of the mandibular bone in the treatment group were 30.35%, 39.75%, 39.53%, and 36.27% for symphysis, parasymphysis, body, and angle areas, respectively, whereas in the control group, they were 27.73%, 39.70%, 36.76%, and 35.48%. The ratios of the treatment group were significantly higher than those of the control group. The results show that the higher ratio of the dental root to the height of the mandibular bone increases the fracture risk.
关键词：Mandible;Mandibular fractures;Tooth root