The reasons for the extraction of various tooth types in Scotland: a 15-year follow up
The reasons for the extraction of various tooth types in Scotland: a 15-year follow up
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DOI：
10.1016/s0300-5712(01)00036-7
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发表时间：
2001-08-01
影响因子：
4.4
通讯作者：
Kay, EJ
中科院分区：
文献类型：
--
作者：
McCaul, LK;Jenkins, WMM;Kay, EJ
目的：本调查的目的是调查拔牙的各种类型在苏格兰的原因。这项研究重复了15年前进行的一项研究。因此，进一步的目的是确定在两项研究之间的15年中，每种牙齿类型的拔牙频率的变化。方法：获得苏格兰牙科执业委员会名单上每四名牙医的姓名。要求425名普通牙科医生记录1周的恒牙拔牙情况。每次拔牙所需的数据包括：患者的年龄、性别和牙科就诊模式、拔牙的类型和拔牙的原因。结果：共有352名牙医参与问卷调查，回复率为82.8%。与1984年的研究相比，每位患者拔牙量减少了25%，每位牙医拔牙量减少了30%。在一九九九年，大部分类型的牙齿都是由定期访视者拔除，而在一九八四年，所有类型的牙齿都是由不定期访视者拔除。在两次调查中，前磨牙和第一、第二磨牙是拔牙最多的牙齿类型。1999年，前磨牙是21岁以下最常被拔除的牙齿，占该年龄段拔牙总数的57.5%。磨牙占该年龄段拔牙的33.8%，而1984年为52%。总体而言，除主要因牙周原因拔除下门牙外，龋齿是所有牙齿类型缺失的主要原因。然而，在21岁以下，84.5%的前磨牙拔牙是为了正畸的目的。结论：在过去的15年里，拔牙的总数减少了，而定期参加拔牙的比例增加了。从21岁以下儿童中拔除的前磨牙比例较高，而臼齿比例较低。这一观察结果可以解释为在这个年龄组中，正畸拔牙的增加或龋齿拔牙的减少。然而，当考虑到从整个人群中拔牙时，龋齿及其后遗症仍然是除主要因牙周原因拔牙的下门牙外所有牙齿类型缺失的主要原因。2001爱思唯尔科学有限公司版权所有。
Objectives: The aim of this survey was to investigate the reasons for extraction of the various tooth types in Scotland. This study replicated one which was undertaken 15 years earlier. A further aim, therefore, was to identify any changes in the frequency of extraction of each tooth type in the 15 years between the two studies.Methods: The names of every fourth dentist on the list of the Scottish Dental Practice Board were obtained. Four hundred and twenty-five general dental practitioners were asked to record permanent tooth extractions for 1 week. Data requested for each extraction were: the patient's age, gender and dental attendance pattern, the type of tooth removed and the reason for the extraction.Results: Three hundred and fifty-two dentists participated (a response rate of 82.8%). There were 25% fewer teeth extracted per patient and 30% fewer per dentist than in the 1984 study. In 1999, more teeth of most types were extracted from regular attenders whereas, in 1984, more teeth of all types were extracted from irregular attenders. Premolars and first and second molars were the tooth types most frequently extracted in both surveys. In 1999 premolars were the teeth most commonly removed below 21 years of age, accounting for 57.5% of extractions in this age range. Molars accounted for 33.8% of extractions in this age range compared with 52% in 1984. Overall, caries was found to be the principal reason for loss of all tooth types apart from lower incisors which were extracted mainly for periodontal reasons. However, below 21 years, 84.5% of premolar extractions were performed for orthodontic purposes.Conclusions: Over the last 15 years, the overall number of extractions has reduced and the proportion of extractions from regular attenders has increased. Proportionately more premolars and fewer molars were extracted from under-21-year-olds. This observation can be explained by an increase in orthodontic extractions or a decline in extractions for caries in this age group. However, when extractions from the population as a whole are considered, caries and its sequelae remains the principal reason for loss of all tooth types other than lower incisors which are extracted mainly for periodontal reasons. (C) 2001 Elsevier Science Ltd. All rights reserved.