摘要
目的 :探讨牙齿漂白和釉质微打磨方法对釉质表面形态的影响。方法 :将 16颗健康离体牙随机使用蒸馏水作为对照组、夜间活髓牙漂白、Croll釉质微打磨和Longhurst釉质微打磨 ,通过扫描电镜观察釉质表面形态的变化。结果 :夜间活髓牙漂白后釉质表面孔隙增多 ,Croll釉质微打磨能形成致密的釉质表面矿化结构 ,Longhurst釉质微打磨则形成无釉柱结构表层 ,有细小划痕。结论 :夜间活髓牙漂白能造成釉质的脱矿。Croll釉质微打磨能形成致密的矿化表层 ,对釉质形态有利。Longhurst釉质微打磨是釉质表面的机械磨除 。
Objective:To explore the effects of bleaching and enamel microabrasions on enamel surface morphology.Methods:Sixteen healthy extracted teeth were treated randomly by distilled water,bleaching,Croll enamel microabrasion,or Longhurst enamel microabrasion.The enamel surfaces were examined by scanning electron microscopy.Results:Enamel surface had increased porosity after bleaching.Croll enamel microabrasion created a densely compacted, mineralized structure.Longhurst enamel microabrasion produced a primeless surface, and had some little scratches on it.Conclusions:Bleaching could cause the enamel demineralization.Croll enamel microabrasion could make a compact mineralized structure and it was benefit to enamel surface,while Longhurst enamel microabrasion was just the mechanical removal of the enamel, but it did not roughen the enamel obviously.
出处
《口腔医学研究》
CAS
CSCD
2002年第6期412-414,共3页
Journal of Oral Science Research
