Murthy Archana Krishna, Mallaiah Pramila, Sanga Ranganath
Oral Health Prev Dent. 2014;12(1):37-43. doi: 10.3290/j.ohpd.a31226.
To investigate the prevalence and associated factors of traumatic dental injury (TDI) among 5- to 16-year-old schoolchildren in Bangalore City, India.
In this cross-sectional study, a probabilistic sample of 2,140 schoolchildren was administered a questionnaire and examined intraorally to record TDI using the Ellis classification. Descriptive statistics and regression models were used for analysis of the data.
The prevalence of TDI among 5- to 16-year-old schoolchildren in Bangalore City was 9.7%. Boys (12.2%) were affected more than girls (7.1%). About 85% of the injuries occurred in maxillary anterior teeth and 89% in the permanent dentition with fractures in enamel as the most common type of TDI. Unknown causes accounted for 53.6% and falls (36.7%) were the most common reported cause. Only 3.9% of children with TDI had sought treatment. Children from public schools aged less than 10 years and boys had significantly higher TDIs as compared to private schoolchildren, those over 10 years of age and girls.
The present study revealed a moderate prevalence of dental trauma. An emergent problem such as TDI should be met by public health policies that emphasise the prevention of TDI based on the knowledge of the risk factors. Children, parents and schoolteachers should be educated about the prevention and timely management of dental trauma in children.
调查印度班加罗尔市5至16岁学童的创伤性牙损伤（TDI）患病率及相关因素。
在这项横断面研究中，对2140名学童进行概率抽样，发放问卷并进行口腔内检查，使用埃利斯分类法记录TDI。采用描述性统计和回归模型对数据进行分析。
班加罗尔市5至16岁学童的TDI患病率为9.7%。男孩（12.2%）受影响的程度高于女孩（7.1%）。约85%的损伤发生在上颌前牙，89%发生在恒牙列，牙釉质骨折是最常见的TDI类型。原因不明的占53.6%，跌倒（36.7%）是最常报告的原因。只有3.9%的TDI儿童寻求过治疗。与私立学校儿童、10岁以上儿童和女孩相比，公立学校10岁以下的儿童和男孩的TDI明显更高。
本研究显示牙外伤患病率中等。像TDI这样的紧急问题应由公共卫生政策来应对，这些政策应基于对风险因素的了解强调预防TDI。应教育儿童、家长和学校教师有关儿童牙外伤的预防和及时处理。
