固定矫治器应用中牙釉质脱矿的临床观察

目的：了解固定矫治过程中，牙釉质脱矿的发生率，好发牙齿及部位。方法：对92例患者共1886颗牙齿进行临床观察，记录，统计脱矿的发病率及病损部位。结果：92名患者中有51名出现釉质脱矿现象，发病率为55．4％，1886颗粒牙中有234颗出现釉质脱矿，发生率12．4％，好发牙为上前牙，好发部位为牙颈部托槽周围，结论：在固定矫治过程中，牙釉质脱矿是一个不容忽视的问题，临床上应采取措施加强预防。

A clinical observation on enamel decalcification in orthodontic treatment with fixed appliance

Objective: To evaluate the incidence of enamel decalcification and the susceptible teeth and area in orthodontic treatment. Methods: Ninetytwo patients(1886 teeth)were observed and recorded to evaluate the incidence. Results: Enamel decalfication lesions were found in 51 patients in treatment,the incidence was 55.4%. Of the total 1886 teeth,234 teeth(12.4%) had enamel decalcification. The susceptible teeth were maxillary incisors,the area was dental cervixand that surrounding the bracket. Conclusion: Enamel decalcification should not be ignored during the orthodontic treatment. some preventive programs should be considered in orthodontic treatment, some preventive programs should be considered in orthodontic clinic.