Galgut P N
Department of Periodontology, University College London Dental School, UK.
J Clin Periodontol. 1988 Nov;15(10):606-11. doi: 10.1111/j.1600-051x.1988.tb02259.x.
The bleeding/plaque ratio has been suggested as a means of assessing susceptibility to periodontal disease, and as a prognosticator of periodontal breakdown. In this study, 100 males and 131 females were evaluated by means of the bleeding/plaque ratio to make a prognosis of the outcome of periodontal therapy. Initial plaque and gingival bleeding scores were used to calculate the bleeding/plaque of the subjects, and these ratios were compared with the resolution in the clinical parameters of plaque, gingival bleeding and severe and moderate pocketing. The subjects were divided into those showing higher bleeding incidence and lower bleeding incidence as assessed by post-treatment gingival bleeding. The bleeding/plaque ratios for the 2 groups were not significantly different, and therefore could not be used clinically for assessment of susceptibility to, or for prognostication of periodontal breakdown. 4 subjects were randomly selected from these 2 groups, and their data used to illustrate the limitations of the bleeding/plaque ratio. The bleeding/plaque ratios bore no relationship to the response to treatment in these 8 individuals, when evaluated in terms of reduction in plaque levels, gingival bleeding or pocketing. It is therefore concluded that the bleeding/plaque ratio in its present form is not of clinical value for making a prognosis of the likely outcome of treatment, and some suggestions as to how it may be improved are made.
出血/菌斑比值已被提议作为评估牙周病易感性以及牙周组织破坏预后的一种方法。在本研究中，通过出血/菌斑比值对100名男性和131名女性进行评估，以预测牙周治疗的结果。利用初始菌斑和牙龈出血评分来计算受试者的出血/菌斑比值，并将这些比值与菌斑、牙龈出血以及中重度牙周袋深度等临床参数的改善情况进行比较。根据治疗后牙龈出血情况，将受试者分为出血发生率较高组和较低组。两组的出血/菌斑比值无显著差异，因此在临床上不能用于评估牙周病易感性或牙周组织破坏的预后。从这两组中随机选取4名受试者，用他们的数据来说明出血/菌斑比值的局限性。当从菌斑水平降低、牙龈出血或牙周袋深度减少方面评估时，这8名个体的出血/菌斑比值与治疗反应无关。因此得出结论，目前形式的出血/菌斑比值对于预测治疗可能结果并无临床价值，并针对如何改进该比值提出了一些建议。
