Department of Paediatric Dentistry, School of Dentistry Fluminense Federal University, Niterói, Rio de Janeiro, Brazil.
Eur J Paediatr Dent. 2011 Sep;12(3):159-62.
The objective of this study was to investigate the occurrence of trauma in primary incisors in a sample of preschool Brazilian children living in a low-income area of Rio de Janeiro, Brazil.
For the study 527 dental records of a Municipal Children's Hospital were evaluated, and the following related factors were recorded: gender age, tooth affected, type and cause of trauma. Data were tabulated and subjected to statistical analysis (chi-square test).
There were no significant differences in the prevalence of injuries among boys and girls. Children 10 to 24 months-old were the most affected (p < 0.05). The maxillary central incisor was the most affected tooth (p < 0.05), with predominance of lateral luxation and concussions (p > 0.05). The most common cause of trauma was associated with child's own-height fall (p < 0.05).
Based on the results, it was concluded that the high incidence of incisor trauma in deciduous teeth should be viewed with concern, requiring the implementation of health policies aimed primarily at the prevention of such accidents.
本研究旨在调查巴西里约热内卢低收入地区学龄前儿童中，恒切牙外伤的发生情况。
对某市级儿童医院的 527 份牙科记录进行评估，并记录以下相关因素：性别、年龄、受影响的牙齿、外伤类型和原因。对数据进行制表并进行统计分析（卡方检验）。
男孩和女孩的受伤患病率无显著差异。10 至 24 个月大的儿童受影响最严重（p<0.05）。上颌中切牙是最易受影响的牙齿（p<0.05），以侧方脱位和震荡为主（p>0.05）。外伤最常见的原因与儿童自身高度跌落有关（p<0.05）。
根据研究结果，恒切牙外伤发生率较高应引起关注，需要制定卫生政策，主要预防此类事故。
