Müller H P, Heinecke A, Eger T
School of Dental Medicine, University of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
Clin Oral Investig. 2000 Dec;4(4):212-8. doi: 10.1007/s007840000078.
The aim of the present study was to consider supragingival plaque as a risk factor for gingivitis in a group of young adults without destructive periodontal disease. A total of 127 subjects, 17 to 30 years of age, participated. Periodontal probing depth, clinical attachment level as well as bleeding upon probing and supragingival plaque was assessed at 6 sites of every tooth present. The individual odds ratios between plaque and bleeding ranged between 0.237 and 66.6. 23% volunteers had an odds ratio of below 1.2. Only 15% individuals presented with an attributable risk of supragingival plaque for bleeding upon probing of 50% or more. Overall, the odds of bleeding, adjusted for periodontal probing depth, was increased by 67% in the presence of plaque. Large differences were observed at different teeth with the highest odds ratio at mandibular premolars with 2.557 (95% confidence interval 2.033-3.216) and the lowest at maxillary molars with 1.355 (1.161-1.732). It was concluded that there was high interindividual and intraindividual variation of the relative risk for bleeding in the presence of plaque. The observed low overall relative risk has important consequences in educational and health care programmes since the risk of supragingival plaque which is actually attributable for the observed bleeding on probing may be rather small.
本研究的目的是将龈上菌斑视为一组无牙周疾病破坏的年轻成年人患牙龈炎的风险因素。共有127名年龄在17至30岁之间的受试者参与。对每颗现存牙齿的6个部位进行牙周探诊深度、临床附着水平以及探诊出血和龈上菌斑的评估。菌斑与出血之间的个体比值比在0.237至66.6之间。23%的志愿者比值比低于1.2。只有15%的个体龈上菌斑导致探诊出血的归因风险达到50%或更高。总体而言，在考虑牙周探诊深度后，存在菌斑时出血几率增加了67%。不同牙齿之间观察到较大差异，下颌前磨牙的比值比最高，为2.557（95%置信区间2.033 - 3.216），上颌磨牙的比值比最低，为1.355（1.161 - 1.732）。得出的结论是，存在菌斑时出血的相对风险在个体间和个体内存在高度差异。观察到的总体相对风险较低，这在教育和医疗保健计划中具有重要意义，因为实际可归因于观察到的探诊出血的龈上菌斑风险可能相当小。
