Beltrami M, Bickel M, Baehni P C
J Clin Periodontol. 1987 Mar;14(3):161-4. doi: 10.1111/j.1600-051x.1987.tb00960.x.
The aim of this study was to evaluate the effect of supragingival plaque control on the composition of the subgingival microflora. 8 subjects with moderate to severe periodontitis were chosen for the study. Sites with periodontal destruction (GI greater than 2; probing depth greater than 6.5 mm; vertical alveolar bone loss on radiographs) were submitted to professional plaque control 3 X a week for 3 weeks. Contralateral sites received no prophylaxis and served as controls. Patients maintained usual oral hygiene during the observation period: it consisted exclusively of tooth brushing once or twice a day with no use of interdental cleaning aids. Clinical examination and bacterial sampling were performed every week. At the end of the study, PlI scores for the experimental sites showed a marked diminution compared with the control sites. No variations were observed in GI or probing depth in test or control sites during the study. The composition of subgingival plaque in both groups showed no significant variations during that period.
本研究的目的是评估龈上菌斑控制对龈下微生物群落组成的影响。选取8名中重度牙周炎患者进行研究。对存在牙周破坏的部位（牙龈指数大于2；探诊深度大于6.5毫米；X线片显示垂直牙槽骨吸收）每周进行3次专业菌斑控制，持续3周。对侧部位不进行预防处理，作为对照。在观察期内，患者保持日常口腔卫生：仅为每天刷牙一到两次，不使用牙间隙清洁辅助工具。每周进行临床检查和细菌采样。研究结束时，与对照部位相比，试验部位的菌斑指数评分显著降低。在研究期间，试验组和对照组的牙龈指数或探诊深度均未观察到变化。在此期间，两组龈下菌斑的组成均未显示出显著变化。
