国际口腔医学杂志

国际口腔医学杂志 ›› 2020, Vol. 47 ›› Issue (4): 413-417.doi: 10.7518/gjkq.2020066

• 论著 • 上一篇    下一篇

瓷层厚度和变色基底对瓷贴面修复四环素牙光学性能的影响

钱慧芬1,2,林云红3,吴美莹1,代自超1,李星星1()   

  1. 1.云南省口腔医学研究所 昆明 650500
    2.云南省第二人民医院口腔修复科 昆明 650021
    3.昆明医科大学附属口腔医院口腔修复科 昆明 650100
  • 收稿日期:2019-10-08 修回日期:2020-03-20 出版日期:2020-07-01 发布日期:2020-07-10
  • 通讯作者: 李星星
  • 作者简介:钱慧芬,住院医师,硕士,Email：qian99846@sina.com
  • 基金资助:
    云南省医疗卫生单位内设机构科研项目(2016NS114);云南省卫生和计划生育委员会医学后备人才基金资助项目(H-201638)

Effect of porcelain layer thickness and substrate on the optical properties of porcelain veneers for tetracycline stained teeth

Qian Huifen1,2,Lin Yunhong3,Wu Meiying1,Dai Zichao1,Li Xingxing1()   

  1. 1. Yunnan Research Institute of Stomatology, Kunming 650500, China
    2. Dept. of Prosthodontics, Yunnan Second People’s Hospital, Kunming 650021, China
    3. Dept. of Prosthodontics, Affiliated Stomatological Hospital of Kunming Medical University, Kunming 650100, China
  • Received:2019-10-08 Revised:2020-03-20 Online:2020-07-01 Published:2020-07-10
  • Contact: Xingxing Li
  • Supported by:
    This study was supported by Internal Research Project of Medical Institutions in Yunnan Province(2016NS114);Medical Reserve Talents Fund of Yunnan Health and Family Planning Commission(H-201638)

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摘要：

目的 分析不同瓷层厚度和变色基底对瓷贴面修复四环素牙的色彩学性能和半透性的影响。方法 用粉浆涂塑烧结法制作瓷试件：体瓷/遮色瓷厚度分别为0.40 mm/0.10 mm、0.30 mm/0.20 mm、0.65 mm/0.10 mm和0.55 mm/ 0.20 mm。利用分光光度计测量试件在模拟四环素牙背景及黑白背景下的L*、a*、b*值,计算试件在模拟四环素牙背景上与背景颜色的色差ΔE001,与试件在白背景上色差ΔE002以及试件的半透性TP值。结果 1）除黄色基底外,其余基底上总厚度0.75 mm的2组色差ΔE001显著大于0.50 mm组,差异有统计学意义（P<0.01）。2）不同背景下,不同厚度瓷试件的色差ΔE002均<1.25,且差异无统计学意义（P>0.01）。3）不同厚度瓷试件TP值均<1,且差异无统计学意义（P>0.01）。结论 对于偏黄、偏红和偏灰的四环素牙,选用0.50 mm厚IPS d.SIGN瓷贴面（0.10 mm的遮色瓷与0.40 mm的体瓷）可实现目标色的良好匹配,但其通透性与天然牙相比较差。

关键词: 瓷贴面, 厚度, 四环素牙, 遮色性能, 色彩匹配性

Abstract:

Objective This study aimed to analyze the color properties and translucency of porcelain veneers with different thicknesses and substrates when used to repair tetracycline stained teeth. Methods Porcelain specimens with different opaque and dentine thicknesses (dentine/opaque: 0.40 mm/0.10 mm, 0.30 mm/0.20 mm, 0.65 mm/0.10 mm, and 0.55 mm/0.20 mm) were fabricated by powder-slurry sintering. L*, a*, and b* parameters were measured under simulated tetracycline and black and white backgrounds by using a spectrophotometer. The ΔE001 and ΔE002 color differences among the specimens on simulated tetracycline backgrounds and normal white background, respectively, were calculated. The translucent parameter (TP values) was also examined. Results 1) The ΔE001 of two groups with a total thickness of 0.75 mm were statistically greater than 0.50 mm groups (P<0.01), except for the yellow background. 2) The ΔE002 of specimens of different thickness under different substrates were all less than 1.25 and there was no significant difference over different substrates (P>0.01). 3) The TP values of all specimens were less than 1, and there was no statistical dif-ference between different thickness groups (P>0.01). Conclusion For yellow, red, and gray tetracycline stained teeth, 0.50 mm-thick IPS d.SIGN porcelain veneers (0.10 mm opaque with 0.40 mm dentine) can obtain good color matching with the target color; however, the translucent property of the porcelain veneers is worse than that of natural teeth.

Key words: porcelain laminate veneer, thickness, tetracycline stained teeth, masking ability, color matching

中图分类号: 

  • R783.1

图 1

不同厚度瓷试件的ΔE001 *表示2组间差异有统计学意义。"

表 1

不同厚度组ΔE001的方差分析"

测量项目 F值 P值
瓷层厚度 128.882 <0.001
背景颜色 256.099 <0.001
瓷层厚度×背景颜色 6.701 <0.001

图 2

不同厚度瓷试件的ΔE002"

表 2

不同厚度组ΔE002的方差分析"

测量项目 F值 P值
瓷层厚度 1.575 0.202
背景颜色 2.897 0.027
瓷层厚度×背景颜色 0.920 0.531

图 3

不同厚度瓷试件的半透性 A：0.40/0.10组;B：0.30/0.20组;C：0.65/0.10组;D：0.55/0.20组。"

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