用单向环状免疫扩散技术(SRID)对健康人和龋病患者的唾液及血清 IgG、IgA 和 IgM 进行定量测定。龋病患者唾液 IgA 水平明显低于健康人,提示唾液 IgA 水平可能与龋的免疫有关。材料和方法1.实验目的:测定健康人及龋病患者唾液及血清中 IgG、IgA、IgM 含量及其差异。用四项指标进行比较:①唾液免疫球蛋白浓度(S); Salivary and serum IgG, IgA, and IgM levels in healthy and caries patients were quantitatively determined by one-way cyclic immunodiffusion (SRID). Carial salivary IgA levels were significantly lower than healthy people, suggesting that salivary IgA levels may be associated with caries immunity. MATERIALS AND METHODS 1. Objectives: To determine the contents and differences of IgG, IgA and IgM in saliva and serum of healthy and carious patients. Four indicators were compared: ① salivary immunoglobulin concentration (S);