Ong G, Yeo J F, Bhole S
Department of Preventive Dentistry, Faculty of Dentistry, National University of Singapore, Singapore.
Community Dent Oral Epidemiol. 1996 Apr;24(2):124-7. doi: 10.1111/j.1600-0528.1996.tb00828.x.
A survey was carried out to determine the reasons for tooth extractions of permanent teeth in Singapore. Data were obtained from 52 dentists practising general dentistry over a period of 12 months. At the end of the 12-month period, data were collected from 1276 patients, from whom a total 272 teeth were extracted. In this population group, the results showed that the percentage of teeth extracted due to periodontal reasons and caries were about the same, that is 35.8% and 35.4%, respectively. There was an increase in teeth extracted due to periodontal reasons with age. In patients above 40 yr, an average of 76% of teeth were lost due to periodontal reasons. An average of 26.7% of teeth were lost due to periodontal reasons in patients under 40 yr old. However, the trend for loss of teeth due to caries is reversed. Posterior teeth were more frequently extract compared to anterior teeth. Third molars accounted for 24.7% of all extractions carried out, whilst central incisors were 8.0% of all extractions. Molars were often lost due to caries and lower anterior teeth were most frequently lost due to periodontal reasons. The results of this study did not demonstrate one predominant reason for extraction. Both caries and periodontal reasons were equally common causes of tooth extraction.
开展了一项调查以确定新加坡恒牙拔牙的原因。数据来自52名从事普通牙科工作12个月的牙医。在这12个月期间结束时，收集了1276名患者的数据，共拔除了272颗牙齿。在这个人群中，结果显示因牙周原因和龋齿拔牙的百分比大致相同，分别为35.8%和35.4%。因牙周原因拔牙的比例随年龄增长而增加。在40岁以上的患者中，平均76%的牙齿因牙周原因缺失。40岁以下患者中，平均26.7%的牙齿因牙周原因缺失。然而，因龋齿导致牙齿缺失的趋势则相反。与前牙相比，后牙更常被拔除。智齿占所有拔牙的24.7%，而中切牙占所有拔牙的8.0%。磨牙常因龋齿缺失，下前牙最常因牙周原因缺失。这项研究的结果并未表明拔牙的一个主要原因。龋齿和牙周原因都是拔牙同样常见的原因。
