Ragnarsson E, Elíasson S T, Olafsson S H
Department of Prosthetic Dentistry, University of Iceland, Faculty of Odontology, Reykjavik.
Scand J Dent Res. 1992 Dec;100(6):322-6. doi: 10.1111/j.1600-0722.1992.tb01080.x.
A random sample of 1023 people 52-79 yr of age out of a group participating in a longitudinal study at the Heart Preventive Clinic of the Icelandic Heart Association in Reykjavík, Iceland, was examined. The examination was carried out in 1985-7. The results on the number of remaining teeth and total edentulousness were compared to information regarding smoking habits and social status. Total edentulousness was more common among women. Total and partial edentulousness was more frequent in the lower "employment" classes while no statistical difference was found for smoking in this respect. This, however, did not affect the significance of tobacco smoking as a factor in the loss of teeth. In general smokers had fewer remaining teeth and were more often edentulous than ex-smokers, smoking time not considered, who again suffered more tooth loss than those who had never smoked. Therefore it is concluded that tobacco smoking may be a major single independent risk factor in the loss of teeth.
在冰岛雷克雅未克冰岛心脏协会心脏预防诊所参与一项纵向研究的人群中，随机抽取了1023名年龄在52至79岁之间的人进行检查。检查于1985年至1987年进行。将剩余牙齿数量和无牙情况的结果与吸烟习惯和社会地位的信息进行了比较。无牙情况在女性中更为常见。完全和部分无牙情况在较低“就业”阶层中更为频繁，而在这方面吸烟情况未发现统计学差异。然而，这并不影响吸烟作为牙齿丧失因素的重要性。一般来说，吸烟者剩余牙齿较少，比已戒烟者更常无牙，不考虑吸烟时间的情况下，已戒烟者又比从不吸烟者牙齿丧失更多。因此得出结论，吸烟可能是牙齿丧失的一个主要独立危险因素。
