Smith M M, Zontine W J, Willits N H
J Am Vet Med Assoc. 1985 Jun 15;186(12):1286-90.
Twenty-four dogs admitted for routine teeth cleaning were selected arbitrarily to undergo a periodontal examination and a dental radiographic examination before the dental procedure. Data pertaining to the physical and radiographic manifestations of periodontal disease of 783 teeth were collected. All dogs had lesions consistent with periodontal disease, ranging from mild gingivitis and minimal plaque accumulation to severely inflamed gingiva, exuberant calculus formation, and root exposure. Of the 783 teeth examined, 153 (20%) had a pocket depth greater than or equal to 4 mm and less than or equal to 9 mm. Data regarding these teeth were subjected to statistical analysis. The clinical signs of plaque, calculus, mobility, pocket depth, and furcation were positively associated with radiographic signs of periodonta disease. The association between grossly evident gingivitis and radiographic signs of periodontal disease was not significant. Conditional probability analysis was applied to determine confidence intervals for the probability of a radiographic sign of periodontal disease occurring given that a clinical sign of periodontal disease occurs.
随机挑选24只因常规牙齿清洁入院的犬，在牙科手术前进行牙周检查和牙科X光检查。收集了783颗牙齿牙周疾病的物理和X光表现的数据。所有犬都有与牙周疾病一致的病变，从轻度牙龈炎和少量牙菌斑堆积到严重发炎的牙龈、大量牙结石形成和牙根暴露。在检查的783颗牙齿中，153颗（20%）牙周袋深度大于或等于4毫米且小于或等于9毫米。对这些牙齿的数据进行了统计分析。牙菌斑、牙结石、牙齿松动、牙周袋深度和根分叉的临床体征与牙周疾病的X光体征呈正相关。明显的牙龈炎与牙周疾病的X光体征之间的关联不显著。应用条件概率分析来确定在出现牙周疾病临床体征的情况下发生牙周疾病X光体征的概率的置信区间。
