Abstract
Aims Although Scotland has the highest proportion of edentulous adults in the UK, the frequency of edentulousness has fallen by 21% during the last 20 years. This study, carried out in 1999, was designed to establish whether the reasons for tooth loss have also changed since 1984 when they were last determined.
Methods The Scottish Dental Practice Board provided the names of every fourth dentist on its list among which 425 general dental practitioners were identified. They were asked to record permanent tooth extractions for 1 week, specifying the age, sex and dental attendance of patients who underwent extractions and the reasons for these extractions. 352 dentists took part: a response rate of 82.8%.
Results The study confirmed that there has been a reduction in the number of extractions between 1984 and 1999: there were 25% fewer teeth extracted per patient and 30% fewer per dentist per week. From 0–20 years of age, orthodontics has replaced caries as the commonest reason for extraction and in all age groups over 20 years, caries has become the commonest reason in contrast to 1984 when periodontal disease was the principal reason in patients over 40 years old.
Conclusions Caries and its sequelae remain the most important cause of tooth loss throughout adult life in Scotland and, therefore, caries prevention and maintenance of restorations are of great importance at all ages.
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Acknowledgements
The authors wish to thank all the general dental practitioners who took part, Dr R Strang and his staff for data handling, and Stafford Miller Ltd for financial support.
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McCaul, L., Jenkins, W. & Kay, E. The reasons for extraction of permanent teeth in Scotland: a 15-year follow-up study. Br Dent J 190, 658–662 (2001). https://doi.org/10.1038/sj.bdj.4801068
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DOI: https://doi.org/10.1038/sj.bdj.4801068
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