Bahrami Golnosh, Vaeth Michael, Kirkevang Lise-Lotte, Wenzel Ann, Isidor Flemming
Department of Prosthetic Dentistry, School of Dentistry, University of Aarhus, Aarhus, Denmark.
J Clin Periodontol. 2008 Dec;35(12):1059-65. doi: 10.1111/j.1600-051X.2008.01328.x.
The aim of the present study was to estimate the incidence and identify risk factors for tooth loss during a 5-year period in a randomly selected Danish population.
In 1997 and 2003, 473 randomly selected adults received a full-mouth radiographic examination. The total number of teeth was 12,444. For each tooth, the following information was recorded from the radiographs: marginal bone level, filling, crown, root canal post, root filling, apicectomy, periapical status and caries lesion. Unconditional and conditional logistic regression analyses were used to identify risk factors for tooth loss.
During the study period, 107 teeth in 60 individuals were lost. On the individual level, reduced marginal bone level and apical periodontitis (AP) were highly associated with tooth loss. On the tooth level, a reduced marginal bone level, AP and apicectomy were strongly associated with tooth loss. Canines were not lost often, whereas tooth loss was more frequently observed in molars and premolars than in incisors.
A reduced marginal bone level and AP were associated with tooth loss over time. Furthermore, there was a higher risk of tooth loss in the posterior regions than in the anterior region.
本研究旨在估计丹麦随机抽样人群中5年内牙齿缺失的发生率并确定其危险因素。
1997年和2003年，对473名随机抽取的成年人进行了全口影像学检查。牙齿总数为12444颗。对于每颗牙齿，从影像学资料中记录以下信息：边缘骨水平、充填情况、牙冠、根管桩、根管充填、根尖切除术、根尖周状况和龋损情况。采用无条件和条件逻辑回归分析来确定牙齿缺失的危险因素。
在研究期间，60名个体的107颗牙齿缺失。在个体水平上，边缘骨水平降低和根尖周炎（AP）与牙齿缺失高度相关。在牙齿水平上，边缘骨水平降低、AP和根尖切除术与牙齿缺失密切相关。尖牙很少缺失，而磨牙和前磨牙的牙齿缺失比切牙更常见。
随着时间的推移，边缘骨水平降低和AP与牙齿缺失有关。此外，后部区域牙齿缺失的风险高于前部区域。
