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Trends over 30 years in the prevalence and severity of alveolar bone loss and the influence of smoking and socio‐economic factors – based on epidemiological surveys in Sweden 1983–2013
Author(s) -
Edman K,
Öhrn K,
Nordström B,
Holmlund A,
Hellberg D
Publication year - 2015
Publication title -
international journal of dental hygiene
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.674
H-Index - 38
eISSN - 1601-5037
pISSN - 1601-5029
DOI - 10.1111/idh.12164
Subject(s) - medicine , epidemiology , periodontitis , dental alveolus , radiography , environmental health , clinical attachment loss , dentistry , population , demography , surgery , sociology
Abstract Objective Epidemiological studies of the prevalence of periodontitis over an extended time using the same methodology to investigate and classify periodontitis are sparse in the literature. Smoking and socio‐economic factors have been proven to increase the risk for periodontal disease. The objective of this study was to investigate 30‐year time trends, using the same methodology to classify the prevalence and severity in alveolar bone loss ( ABL ) and to investigate the influence of tobacco and socio‐economic factors. Methods Four cross‐sectional epidemiological studies in an adult population were performed in the county of Dalarna, Sweden, in 1983, 2003, 2008 and 2013. Random samples of 787–1133 individuals aged 35–85 who answered a questionnaire about tobacco use and socio‐economic factors were radiographically and clinically examined. A number of teeth, ABL and calculus visible on radiographs were registered. The severity of ABL as detected on radiographs was classified into no bone loss, moderate or severe. Results The prevalence of moderate ABL decreased from 45% in 1983 to 16% in 2008, but increased to 33% in 2013 ( P < 0.05). The prevalence of severe ABL remained the same from 1983 (7%) to 2013 (6%). Calculus visible on radiographs increased from 22% in 2008 to 32% in 2013 ( P < 0.05). Socio‐economic factors had limited impact on the severity of ABL . Conclusion Moderate ABL and calculus visible on radiographs significantly increased between 2008 and 2013. Smoking was the strongest factor associated with ABL overall.