Bergström J
Department of Periodontology, Karolinska Institutet, Stockholm, Sweden.
J Periodontal Res. 1992 Nov;27(6):604-8. doi: 10.1111/j.1600-0765.1992.tb01743.x.
The clinical diagnostic features of gingivitis such as redness, swelling and bleeding are based on vascular changes. It would be desirable to directly make use of the vascular changes in the clinical evaluation of gingival inflammation. In the present study, capillary microscopy was used for quantitative evaluation of the vascular reaction of the marginal gingiva in response to experimental plaque formation in 6 healthy students. Low power stereomicroscopy was used and the number of vessel endings was evaluated from stereophotographs. A gradual increase in the number of visible vessel endings was observed over time of plaque accumulation. The mean +/- SEM at baseline was 24.0 +/- 6.30 as compared to 77.0 +/- 10.02 at day 28. After removal of plaque and re-institution of oral hygiene measures, a return toward pre-experimental numbers was observed. Throughout the test the number of vessel endings within the proximal-papillary part of the marginal gingiva was less than that within the basal-labial part. The results indicate that low power stereophotomicroscopy is a useful tool for the clinical study of inflammatory changes in the gingival vasculature.
牙龈炎的临床诊断特征，如发红、肿胀和出血，是基于血管变化的。在牙龈炎症的临床评估中直接利用这些血管变化将是很理想的。在本研究中，使用毛细血管显微镜对6名健康学生的边缘龈对实验性菌斑形成的血管反应进行定量评估。使用低倍立体显微镜，并从立体照片评估血管末梢的数量。随着菌斑积累时间的推移，可见血管末梢的数量逐渐增加。基线时的平均值±标准误为24.0±6.30，而在第28天时为77.0±10.02。去除菌斑并重新采取口腔卫生措施后，观察到血管末梢数量恢复到实验前水平。在整个测试过程中，边缘龈近中乳头部分内的血管末梢数量少于唇侧基部部分内的数量。结果表明，低倍立体显微镜是牙龈血管系统炎症变化临床研究的有用工具。
