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恒前牙美观修复就是用一种与患牙邻牙颜色相近的材料在其唇面覆盖一层,以恢复外形,改善美观,防止继发龋。主要用于四环素牙、氟斑牙和釉质发育不全的牙齿,由于下前牙不易外露对美观影响不大,所以多用于上前牙。这种治疗方法还只有15年的历史,是一种临床上较满意的修复手段,国内外已经有许多文献报道。但是这种修复不是永久性的,一般使用期为5年左右,随着时间的推移,有些覆盖物可能出现再次着色、表面磨耗、脱落及牙龈反应等问题。现就这些问题分别分析如下。
Aesthetic treatment of permanent anterior teeth is to use a material similar to the color of the adjacent teeth of the affected teeth to be covered with a layer of lip surface to restore appearance, improve appearance and prevent secondary caries. Mainly used for tetracycline teeth, dental fluorosis and enamel hypoplasia of the teeth, because the lower anterior teeth is not easy to expose the appearance of little impact, so much for the anterior teeth. This treatment is only 15 years old, is a clinically satisfactory means of repair, there are many reports at home and abroad. However, this type of repair is not permanent, with a general useful life of about 5 years. Over time, some overlays may have problems with re-coloring, surface abrasion, shedding and gingival response. Now these questions are analyzed as follows.