Tello Gustavo, Bonini Gabriela Cunha, Murakami Christiana, Abanto Jenny, Oliveira Luciana Butini, Bönecker Marcelo
Department of Orthodontics and Pediatric Dentistry, School of Dentistry, Universidade de São Paulo, São Paulo, SP, Brazil.
Faculdade São Leopoldo Mandic, School of Dentistry, Campinas, SP, Brazil.
Dent Traumatol. 2016 Aug;32(4):274-80. doi: 10.1111/edt.12255. Epub 2016 Jan 22.
To assess trends in the prevalence of traumatic crown injuries (TCI) in children aged 1-4 years living in Diadema city (Brazil) and to investigate whether TCI were associated with socio-demographic and clinical variables.
Six cross-sectional surveys with representative samples were carried out from 2002 to 2012 following the same criteria and methodology. A total of 6389 children were evaluated and systematically selected on the National Children's Vaccination day. Calibrated examiners performed the children's oral examination for TCI according to Andreasen's criteria. Chi-square test for trends was used to perform comparative analysis. Poisson regression was used to associate TCI to socio-demographic and clinical variables.
The prevalence of TCI in 2002 for preschool children aged 1, 2, 3 and 4 years was 4.5%, 11.4%, 14% and 13.9%, respectively, and the prevalence in 2012 for the same age groups was 10.4%, 15.9%, 25.7% and 28.1%, respectively. There was a significant increase in the prevalence of TCI for all age groups and for the total sample (P < 0.05). Children's age was associated with TCI in all the surveys. Male gender, presence of anterior open bite and inadequate lip coverage were associated with TCI in some surveys along the years (P < 0.05).
This study has shown an increase of TCI prevalence in Brazilian preschool children in the last 10 years and its association with children's age, male gender, presence of anterior open bite and inadequate lip coverage. However, this increase does not seem to be relevant to decisions on public policy.
评估居住在巴西迪亚德马市的1 - 4岁儿童创伤性牙冠损伤（TCI）的患病率趋势，并调查TCI是否与社会人口统计学和临床变量相关。
2002年至2012年期间，按照相同的标准和方法进行了六项具有代表性样本的横断面调查。在全国儿童预防接种日对总共6389名儿童进行了评估并系统选取。经过校准的检查人员根据安德里亚森标准对儿童进行TCI口腔检查。采用趋势卡方检验进行比较分析。使用泊松回归将TCI与社会人口统计学和临床变量相关联。
2002年1岁、2岁、3岁和4岁学龄前儿童的TCI患病率分别为4.5%、11.4%、14%和13.9%，2012年同年龄组的患病率分别为10.4%、15.9%、25.7%和28.1%。所有年龄组以及总样本的TCI患病率均显著增加（P < 0.05）。在所有调查中，儿童年龄与TCI相关。多年来，男性性别、前牙开（牙合）和唇覆盖不足在某些调查中与TCI相关（P < 0.05）。
本研究表明，在过去10年中，巴西学龄前儿童的TCI患病率有所增加，并且与儿童年龄、男性性别、前牙开（牙合）和唇覆盖不足有关。然而，这种增加似乎与公共政策决策无关。
