摘要
光固化复合树脂因色泽美观、操作简便和生物相容性良好,目前已广泛应用于口腔临床,随着口腔材料学的飞速发展,光固化复合树脂生产技术不断提高,在单体结构、化学性质、填料含量、尺寸和形状等方面经过多次改进,具备了良好的理化性能,但研究显示,该材料在修复后一段时间会发生不同程度的色泽改变,影响美观,造成修复失败。引起光固化树脂色泽改变的因素包括两方面:一方面是内部因素,即由固有成分填料、基质及基质/填料界面的理化性能改变而导致的内部变色,以及在该过程中吸水膨胀而引起的色素渗透,这种变色通常是不可逆的,需要重新修复;另一方面是外部因素,主要与饮食中的色素、医源性因素、患者的口腔卫生及吸烟等有关,外部因素的作用可形成斑块、污渍和色素沉着,这种色泽改变通常是浅表的,可以通过打磨抛光去除。本文将对光固化复合树脂色泽稳定性的影响因素进行综述。
Because of beauty,easy operation and good biocompatibility,light-cured composite resins have been widely used in oral clinics.With the rapid development of dental materialogy,the production technology of light-cured composite resins has been continuously improved.After many improvements in monomer structure,chemical properties,filler content,size and shape,it has better physical and chemical properties.However,the research shows that the color and gloss of the light-cured composite resins will change after a period of restoration,which will affect the beauty and cause the failure of restoration.The factors of color change include two aspects:the first is internal factors,that is internal discoloration caused by the altered physicochemical properties of the intrinsic component filler,matrix and matrix/filler interface,and the pigment penetration caused by water absorption and expansion during the process.This discoloration is usually irreversible and the resin needs to be restored again.The second is external factors,mainly related to pigments in the diet,iatrogenic factors,patients’oral hygiene,smoking and so on.External factors can cause plaques,stains and hyperpigmentation,which is superficial and can be removed by grinding and polishing.In this paper,the factors affecting the color and gloss stability of light-cured composite resins will be reviewed.
作者
吴小芳
段春红
WU Xiao-fang;DUAN Chun-hong(Department of Oral Medicine,Shanxi Medical University School and Hospi-tal of Stomatology,Taiyuan 030001,China;Department of Oral Medicine,The Fifth Clinical Medical College of Shanxi Medical University,Taiyuan 030012,China)
出处
《口腔颌面修复学杂志》
2022年第3期235-240,共6页
Chinese Journal of Prosthodontics
关键词
光固化复合树脂
色泽稳定性
抗染性
老化
light-curing composite resin
color stability
stain resistance
aging
作者简介
吴小芳,山西医科大学口腔医学院,硕士研究生,太原030001;段春红,山西医科大学口腔医学院,山西医科大学第五临床医学院口腔内科,主任医师,太原030012。
