Souza Xana Carolina de Pereira E, Abreu Mauro Henrique Nogueira Guimarães, Resende Vera Lúcia Silva, Castilho Lia Silva de
Department of Social and Preventive Dentistry, Faculty of Dentistry, Federal University of Minas Gerais State, Brazil.
Department of Restorative Dentistry, Faculty of Dentistry, Federal University of Minas Gerais State, Brazil.
Braz Dent J. 2018 Mar-Apr;29(2):154-158. doi: 10.1590/0103-6440201801922.
This study investigated risk factors for tooth injuries in individuals from a dental clinical reference service for patients with special needs in Belo Horizonte, MG, Brazil. This is a retrospective cohort study that evaluated 493 dental charts of individuals with or without tooth injuries at their first dental appointment. The dependent variable was the time of occurrence of new dental traumatic injuries and was measured in months. Gender, age, International Code of Diseases, mother's education, mouth breathing, hyperkinesis, pacifier use, thumb sucking, psychotropic drug use, tooth injuries at the first dental examination, involuntary movements, open bite, having one or more siblings and reports of seizures were the covariates. The Cox proportional hazards regression model was used to estimate the unadjusted and adjusted hazard ratios and their respective 95% confidence intervals. The average time that individuals remained free of dental traumatism was 170.78 months (95% CI, 157.89-183.66) with median of 216 months. The incidence of new events was 11.88%. The covariate associated with an increased risk of dental traumatism was a history of tooth injuries at the first dental appointment. The increase in dental trauma risk was 3.59 (95% CI, 1.94-6.65). A history of traumatic dental injury was the risk factor for the dental trauma found in this group of individuals with developmental disabilities.
本研究调查了巴西米纳斯吉拉斯州贝洛奥里藏特市一家针对特殊需求患者的牙科临床参考服务机构中个体牙齿损伤的风险因素。这是一项回顾性队列研究，评估了493份个体的牙科病历，这些个体在首次牙科就诊时有无牙齿损伤。因变量是新的牙齿创伤性损伤发生的时间，以月为单位进行测量。性别、年龄、国际疾病分类、母亲的教育程度、口呼吸、多动症、使用安抚奶嘴、吮拇指、使用精神药物、首次牙科检查时的牙齿损伤、不自主运动、开（牙合）、有一个或多个兄弟姐妹以及癫痫发作报告为协变量。采用Cox比例风险回归模型来估计未调整和调整后的风险比及其各自的95%置信区间。个体无牙齿创伤的平均时间为170.78个月（95%CI，157.89 - 183.66），中位数为216个月。新事件的发生率为11.88%。与牙齿创伤风险增加相关的协变量是首次牙科就诊时的牙齿损伤史。牙齿创伤风险增加为3.59（95%CI，1.94 - 6.65）。创伤性牙齿损伤史是该组发育障碍个体中发现的牙齿创伤的风险因素。
