Cigarette smoking and periodontal disease among 32‐year‐olds: a prospective study of a representative birth cohort
- 10 September 2007
- journal article
- Published by Wiley in Journal of Clinical Periodontology
- Vol. 34 (10), 828-834
- https://doi.org/10.1111/j.1600-051x.2007.01131.x
Abstract
Background: Smoking is recognized as the primary behavioural risk factor for periodontal attachment loss (AL), but confirmatory data from prospective cohort studies are scarce. Aim: To quantify the association between cigarette smoking patterns and AL by age 32. Methods: Periodontal examinations were conducted at ages 26 and 32 in a longstanding prospective study of a birth cohort born in Dunedin (New Zealand) in 1972/1973. Longitudinal categorization of smoking exposure was undertaken using data collected at ages 15, 18, 21, 26 and 32. Results: Complete data were available for 810 individuals of whom 48.9% had ever smoked (31.5% were current smokers). Compared with never‐smokers, long‐term smokers (and other age‐32 smokers) had very high odds ratios (ORs of 7.1 and 5.7, respectively) for having 1 +sites with 5 +mm AL, and were more likely to be incident cases after age 26 (ORs of 5.2 and 3.2, respectively). Two‐thirds of new cases after age 26 were attributable to smoking. There were no significant differences in periodontal health between never‐smokers and those who had quit smoking after age 26. Conclusions: Current and long‐term smoking in young adults is detrimental to periodontal health, but smoking cessation may be associated with a relatively rapid improvement in the periodontium.Keywords
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