Montandon Andréia, Zuza Elizangela, Toledo Benedicto Egbert
Department of Social Dentistry, São Paulo State University (UNESP), Rua Humaitá, 1680, 14801-903 Araraquara, SP, Brazil.
Int J Dent. 2012;2012:719750. doi: 10.1155/2012/719750. Epub 2012 Aug 29.
Purpose. To evaluate the prevalence and reasons for teeth extractions in a sample from a dental clinic in Brazil. Methods. The prevalence of teeth mortality was analyzed by gender, age, tooth type and reasons for extraction on 800 teeth of 439 subjects, whose data was collected in clinical records in a convenience sample. Results. The groups with range from 35 to 44 years, 45 to 54 years and 55 to 64 years revealed significantly greater number of teeth extractions than other age groups (P < 0.0001). The anterior teeth loss increased significantly with aging, while the tooth mortality of premolar and molar were higher in younger people. The caries was the more prevalent reason for tooth mortality among young and adults up to 44 years old, while the periodontal disease was the main reason for extractions from 45 years old until range of 81 years (P < 0.0001). Conclusions. It can be suggested that some reasons for tooth loss were age-dependent, but the caries and the periodontal diseases were the main reasons for tooth mortality in this Brazilian sample.
目的。评估巴西一家牙科诊所样本中牙齿拔除的患病率及原因。方法。对439名受试者的800颗牙齿，按性别、年龄、牙齿类型及拔除原因分析牙齿死亡率，数据收集自便利样本的临床记录。结果。35至44岁、45至54岁和55至64岁组的牙齿拔除数量明显多于其他年龄组（P < 0.0001）。前牙缺失随年龄增长显著增加，而前磨牙和磨牙的牙齿死亡率在年轻人中更高。龋齿是44岁及以下年轻人和成年人牙齿死亡的最常见原因，而牙周疾病是45岁至81岁年龄段拔牙的主要原因（P < 0.0001）。结论。可以认为，一些牙齿缺失原因与年龄有关，但在这个巴西样本中，龋齿和牙周疾病是牙齿死亡的主要原因。
