Ferreira Jainara Maria Soares, Fernandes de Andrade Ednara Mércia, Katz Cíntia Regina Tornisiello, Rosenblatt Aronita
Department of Preventive and Social Dentistry, Faculty of Dentistry, University of Pernambuco, Camaragibe, Brazil.
Dent Traumatol. 2009 Apr;25(2):219-23. doi: 10.1111/j.1600-9657.2008.00754.x.
The aim of this study was to assess the prevalence of dental trauma as compared to the prevalence of dental caries in children aged 3-59 months. A cross-sectional study was carried out during the National Immunization Day for Polio in Recife, northeast Brazil. The sample comprised 3489 children under the age of 5. The clinical examination was performed by 123 previously trained dental students. The inter-examiner agreement for crown fracture was 90.32% and for tooth discoloration it was 83.87%. The prevalence of dental caries was assessed using the dmf-t index. The statistical methods included descriptive analysis and the chi-square test with a margin of error of 5%. A total of 56 142 teeth were examined and the prevalence of dental trauma was 14.9%. Dental fracture was the most prevalent injury observed in 516 teeth (0.9%), followed by discoloration in 191 (0.9%), intrusion in 12 (0.02%) and extrusion in five (0.008%). The most affected teeth were the upper central incisors. The prevalence of dental trauma increased significantly with age and family income (P < 0.0001). Dental trauma was most prevalent from 2 to 5 years of age. The prevalence of dental caries was 14.3%. This prevalence increased significantly with age (P < 0.0001) and with the reduction in family income (P < 0.0001). The results showed that the prevalence of dental caries and dental trauma was similar, and that both caused the same amount of damage to dental health for the target population.
本研究旨在评估3至59个月大儿童的牙外伤患病率，并与龋齿患病率进行比较。在巴西东北部累西腓的国家脊髓灰质炎免疫日期间开展了一项横断面研究。样本包括3489名5岁以下儿童。临床检查由123名之前接受过培训的牙科专业学生进行。检查者间对于冠折的一致性为90.32%，对于牙齿变色的一致性为83.87%。使用dmf-t指数评估龋齿患病率。统计方法包括描述性分析和误差幅度为5%的卡方检验。共检查了56142颗牙齿，牙外伤患病率为14.9%。牙折是最常见的损伤，在516颗牙齿中出现（0.9%），其次是牙齿变色191颗（0.9%）、牙齿嵌入12颗（0.02%）和牙齿脱出5颗（0.008%）。受影响最严重的牙齿是上颌中切牙。牙外伤患病率随年龄和家庭收入显著增加（P < 0.0001）。牙外伤在2至5岁时最为普遍。龋齿患病率为14.3%。该患病率随年龄（P < 0.0001）和家庭收入降低（P < 0.0001）而显著增加。结果表明，龋齿和牙外伤的患病率相似，并且两者对目标人群的牙齿健康造成的损害程度相同。
