Nyman S, Rosling B, Lindhe J
J Clin Periodontol. 1975 Apr;2(2):80-6. doi: 10.1111/j.1600-051x.1975.tb01728.x.
The investigation was undertaken to find out whether favourable conditions for healing after periodontal surgery would develop in patients whose oral hygiene was professionally maintained at a high standard. The study was performed on 20 patients with advanced periodontal disease. Following an initial examination, comprising plaque index and gingival index scoring, measurement of pocket depths and loss of attachment, the patients were randomly distributed between a test and a control group. The patients first received professional cleaning of the teeth once every 2 weeks. The patients of the control group were recalled for scaling of the teeth once every 6 months. All patients were reexamined after 6, 12 and 24 months. It was found that the control patients were unable to maintain a high standard of oral hygiene with the result that the treatment of the periodontal disease failed. The patients of the test group maintained a high standard of oral hygiene, and the treatment of the periodontal disease was, therefore, successful.
开展该调查是为了弄清楚，在口腔卫生由专业人员维持在高标准的患者中，牙周手术后是否会出现有利于愈合的条件。该研究针对20名晚期牙周病患者进行。在进行包括菌斑指数和牙龈指数评分、牙周袋深度测量以及附着丧失测量的初始检查后，患者被随机分为试验组和对照组。患者首先每2周接受一次专业牙齿清洁。对照组患者每6个月被召回进行一次牙齿洁治。所有患者在6个月、12个月和24个月后重新接受检查。结果发现，对照组患者无法维持高标准的口腔卫生，导致牙周病治疗失败。试验组患者维持了高标准的口腔卫生，因此牙周病治疗成功。
