本文对患有根面龋的 37名患者 76个牙使用我院研究所制备的 10 %氟钼酸铵进行表面涂布治疗。同时对 16名患者 4 0个牙使用 2 %氟化钠进行对照治疗。结果表明 :氟钼酸铵溶液的有效率为 88.16 % ,氟化钠的有效率为 15 % ,经统计学处理证实 :氟钼酸铵明显优于氟化钠 ,有显著性差异。临床应用表明 :10 %氟钼酸铵使用方便 ;安全、无毒副作用 ,对牙龈粘膜无刺激 ,对牙齿不染色 ,是目前值得推广应用防治根面龋有效的理想新制剂 In this paper, 76 teeth of 37 patients with root caries were surface-coated with 10% ammonium fluoromolybdate prepared by our institute. At the same time, control treatment was given to 40 patients of 16 patients with 2% sodium fluoride. The results showed that the effective rate of ammonium fluoromolybdate solution was 88.16% and the effective rate of sodium fluoride was 15%. The statistical analysis showed that ammonium fluoromolybdate was significantly superior to sodium fluoride, and the difference was significant. Clinical application shows that: 10% ammonium fluoromolybdate is easy to use; safe, non-toxic side effects, no irritation to gingival mucosa, non-staining of teeth, it is the ideal new formulation effective to promote the application of root caries prevention and cure