Conclusion：Fluoride treatments can reduce the incidence rate of enamel opaque spot after orthodontic etching.
Conclusion：Fluoride treatments can reduce the incidence rate of enamel opaque spot after orthodontic etching.
结论：氟化处理可降低口腔固定正畸患者釉白斑的发生率。
Conclusion：Fluoride treatments can reduce the incidence rate of enamel opaque spot after orthodontic etching.
结论：氟化处理可降低口腔固定正畸患者釉白斑的发生率。