Department of Dental Emergency, Beijing Stomatological Hospital, Capital Medical University, Beijing, China.
Dent Traumatol. 2011 Jun;27(3):203-7. doi: 10.1111/j.1600-9657.2010.00938.x.
BACKGROUND/AIM: There is a lack of epidemiologic studies of traumatic dental injuries (TDI) in China. The aim of this paper was to study TDI of patients visiting the Stomatological Hospital in Beijing China over a 12-month period.
The study includes 644 patients, age 1-78, who were admitted to the Beijing Stomatological Hospital between July 2008 and June 2009 for TDI. Dental records and radiographs were reviewed. Age, gender, date, type of TDI, etiology, and tooth and number of teeth injured were recorded.
Men represented 60.3% of all patients. The highest frequency of dental trauma was found in schoolchildren 7-12years of age (22.8%), followed by adolescents 13-18years of age (15.2%) and young adults 19-24years of age (15.2%). Hospital visits occurred most frequently from the afternoon to late evening in 74.7% of all patients. Most cases occurred on weekends (50.8%). The most common causes of dental trauma were falls (39.6%) and violence (16.9%). Dental trauma caused by motor vehicle was seen in 6.1%. Maxillary central incisors were the most commonly affected teeth (59%). The main types of injury to permanent teeth were uncomplicated crown fractures (20.8%) and subluxations (20.4%) The least common tooth injuries were intrusions (1.4%). Among primary teeth, subluxations (32.1%) were the most common and uncomplicated crown fractures and crown-root fractures comprised 2.5% each.
TDI in Beijing, China not only shows epidemiologic characteristics in common with many other studies in the world, but also shows different characteristics that should be further studied and taken into consideration when planning for preventive programs and emergency resources.
背景/目的：中国缺乏关于创伤性牙外伤（TDI）的流行病学研究。本文旨在研究北京口腔医院 12 个月期间就诊的患者的 TDI。
本研究包括 644 名年龄在 1-78 岁之间的患者，他们于 2008 年 7 月至 2009 年 6 月期间因 TDI 入住北京口腔医院。回顾了牙科记录和 X 光片。记录了年龄、性别、日期、TDI 类型、病因以及受伤的牙齿和牙齿数量。
男性占所有患者的 60.3%。牙科外伤的最高频率发生在 7-12 岁的学龄儿童（22.8%），其次是 13-18 岁的青少年（15.2%）和 19-24 岁的年轻人（15.2%）。在所有患者中，74.7%的就诊时间是下午到深夜。大多数病例发生在周末（50.8%）。牙科外伤最常见的原因是跌倒（39.6%）和暴力（16.9%）。由机动车引起的牙科外伤占 6.1%。上颌中切牙是最常受影响的牙齿（59%）。恒牙的主要损伤类型是单纯冠折（20.8%）和半脱位（20.4%）。最常见的乳牙损伤是脱位（32.1%），单纯冠折和冠根折各占 2.5%。
中国北京的 TDI 不仅具有与世界上许多其他研究共同的流行病学特征，而且还具有不同的特征，在规划预防计划和应急资源时应进一步研究和考虑这些特征。
