口腔内的牙齿、牙龈、粘膜及舌等在湿润的环境里才得以保持健康,起着润滑作用的是唾液。从大小唾液腺分泌到口腔里的唾液叫混合唾液,也称全唾液。所谓混合唾液不仅包括大小唾液腺分泌的唾液,还包括微生物及其产物,龈沟液,粘膜脱落细胞,血液细胞,食物残渣和其他物质等。因唾液各种生化值变化较大,所以有学者认为唾液生化学检验没有意义。然而,口腔领域的各种疾病皆可反映在混合唾液中。可为牙周病的发生、发展和处置经 Oral teeth, gums, mucous membranes and tongue in the humid environment to be able to maintain health, plays a lubricating role of saliva. Saliva secreted from the salivary glands into the mouth is called mixed saliva, also known as whole saliva. The mixed saliva includes not only the saliva secreted by salivary glands of large and small size, but also microorganisms and their products, gingival crevicular fluid, mucosal exfoliative cells, blood cells, food debris and other substances. Due to the large changes in various biochemical values ​​of saliva, some scholars think salivary biochemical tests have no meaning. However, various diseases in the oral area can be reflected in mixed saliva. For the occurrence, development and disposal of periodontal disease