论文部分内容阅读
正畸固定矫治器给保持口腔卫生带来了困难,环绕托槽与带环周围增加了釉质龋的可能。釉质龋影响了正畸治疗的结果。有学者报道使用固定矫治器釉质龋发生率增加。釉质龋的早期病损为白点(white spot),硬度与周围正常釉质不同。釉质龋早期经历了表面软化和表层下病损二个阶段。本实验目的在于研究固定矫治器治疗过程中釉质病变进展情况。研究方法5位受试者,年龄11～13岁,共有10颗因矫治需要拔除的前磨牙。在需要拔除的前磨牙上放置带环,二根0.8mm粗金属桩焊在带环内侧颊面以提供菌斑聚集场所(如图所示)。粘固前用不含氟化物的浮石粉洗刷牙齿,带环近远中及舌侧用聚羧酸锌水门汀
Orthodontic fixators make it difficult to maintain oral hygiene, increasing the possibility of enamel caries around the brackets and band loops. Enamel decay affects the outcome of orthodontic treatment. Some scholars have reported the use of fixed appliance enamel caries increased incidence. Early lesions of enamel caries white spots (white spots), hardness and surrounding normal enamel different. Early enamel caries experienced surface softening and sub-surface lesions of two stages. The purpose of this experiment is to study the progress of enamel lesions in the treatment of fixed appliance. Study Methods Five subjects, aged 11 to 13 years old, a total of 10 premolar removal due to orthodontic treatment. Place a loop on the premolar that needs to be removed. Two 0.8mm thick metal posts are welded to the inside buccal area of the loop to provide a site of plaque accumulation (as shown). Fluoride-free pumice powder prior to cementing teeth brushing, with ring near and far in the tongue with polycarboxylate cement