Division of Cardiovascular Medicine, Department of Medical and Health Sciences, Linköping University, Center for Oral Rehabilitation, County Council of Östergötland, Sweden. nils.ravald @lio.se
J Clin Periodontol. 2012 Jan;39(1):73-9. doi: 10.1111/j.1600-051X.2011.01811.x. Epub 2011 Nov 7.
To study periodontal conditions, root caries, number of lost teeth and causes for tooth loss during 11-14 years after active periodontal treatment.
Sixty-four patients participated in the follow-up study. Reasons for tooth loss were identified through previous case books, radiographs and clinical photos. To identify factors contributing to tooth loss, a logistic multilevel regression analysis was used.
The number of lost teeth was 211. The main reason was periodontal disease (n = 153). Due to root caries and endodontic complications, 28 and 17 teeth, respectively, were lost. Thirteen teeth were lost for other reasons. The number of teeth (p = 0.05) and prevalence of probing pocket depths, 4-6 mm (p = 0.01) at baseline, smoking (p = 0.01) and the number of visits at dental hygienists (p = 0.03) during maintenance, significantly contributed to explain the variation in tooth loss.
Previously treated patients at a specialist clinic for periodontology continued to lose teeth in spite of maintenance treatments at general practitioners and dental hygienists. The main reason for tooth loss was periodontal disease. Tooth loss was significantly more prevalent among smokers than non-smokers. Tooth-related risk factors were smoking, low numbers of teeth and prevalence of periodontal pockets, 4-6 mm.
研究牙周状况、根面龋、失牙数目以及牙周治疗 11-14 年后的失牙原因。
64 名患者参与了随访研究。通过既往的病历、X 线片和临床照片确定失牙原因。采用逻辑多元回归分析确定导致失牙的因素。
失牙数为 211 颗。主要原因为牙周病（n=153）。因根面龋和牙髓并发症导致失牙分别为 28 颗和 17 颗。另有 13 颗牙因其他原因失牙。基线时的牙齿数目（p=0.05）、探诊深度 4-6mm 的检出率（p=0.01）、吸烟（p=0.01）和牙周维护时口腔卫生士就诊次数（p=0.03）与失牙数量显著相关，能够解释失牙差异。
尽管在普通牙医处接受了维护治疗，从前在牙周病专科诊所接受治疗的患者仍持续失牙。牙周病是导致失牙的主要原因。失牙在吸烟者中比非吸烟者中更为常见。与牙齿相关的危险因素为吸烟、牙齿数量少和牙周袋深度 4-6mm 的检出率高。
