作者任选牙龈炎72例,牙周炎48例,盲法分为正常组、洗必太组、含镧漱口剂组和复方硼砂液组。以牙龈指数和菌斑指数为指标,观察含镧漱口剂的疗效。结果表明:含镧漱口剂在消除牙龈炎症方面效果最好;治疗前后牙龈指数的减少值明显高于其他3组,但在菌斑指数的减少值方面与其他3组无明显差异。菌斑指数的下降与芽龈炎症的消退并不完全一致。 The author selected 72 cases of gingivitis, 48 ​​cases of periodontitis, blinded into normal group, chlorhexidine group, containing lanthanum mouthwash group and compound borax group. To gingival index and plaque index as an indicator to observe the efficacy of lanthanum-containing mouthwash. The results showed that lanthanum-containing mouthwash had the best effect in eliminating gingival inflammation. The reduction of gingival index before and after treatment was significantly higher than the other three groups, but there was no significant difference between the three groups in the reduction of plaque index. Decreased plaque index and gingival inflammation subsided is not exactly the same.