华西口腔医学杂志

• 临床研究 • 上一篇    下一篇

Cerinate瓷贴面及人牙釉质透射率的测定与比较

陈吉华1;周国锋2;卫张蕊3;王辉1;赵三军1   

  1. 1.第四军医大学口腔医院  口腔修复科,陕西  西安 710032;2.国防科学技术大学门诊部  口腔科,湖南  长沙 410073;3.第四军医大学  教学实验中心,陕西  西安 710032
  • 收稿日期:2006-12-25 修回日期:2006-12-25 出版日期:2006-12-20 发布日期:2006-12-20
  • 通讯作者: 陈吉华, Tel: 029-84776329
  • 作者简介:演陈吉华(1964-),男,湖北人,教授,博士

Measurement and Comparison of the Spectral Transmittance of Cerinate Porcelain and Human Enamel

CHEN Ji-hua1,ZHOU Guo-feng2, WEI Zhang-rui3, WANG Hui1, ZHAO San-jun1   

  1. 1. Dept. of Prosthodontics, Co- llege of Stomatology, The Fourth Military Medical of University, Xi′an 710032, China; 2. Dept. of Stomatology, National University of Defense Technology, Changsha  10073, China; 3. Teaching and Experiment Center, The Fourth Military Medical University, Xi′an 710032, China
  • Received:2006-12-25 Revised:2006-12-25 Online:2006-12-20 Published:2006-12-20

摘要:

目的  测定不同颜色不同厚度的Cerinate瓷贴面透射率的大小,并与相同颜色及厚度的牙釉质片的透射率进行比较。方法  制作不同颜色(A1、A2、A3色)、不同厚度(0.50 mm、0.75 mm、1.00 mm)的Cerinate瓷贴面及不同厚度的(0.50 mm、0.75 mm、1.00 mm)A2色牙釉质片,用分光光度计测量其在可见光光谱范围内的透射率。结果  随着颜色的加深和厚度的增加,Cerinate瓷贴面的透射率逐渐减小。其中厚度对瓷贴面透射率的影响较大(P<0.01),而颜色对透射率影响较小(P>0.05)。当瓷贴面厚度达到0.75 mm及以上时,相同颜色的Cerinate瓷贴面与牙釉质片的透射率的差别无统计学意义(P>0.05)。结论  影响瓷贴面透射率的主要因素是贴面的厚度,Cerinate瓷贴面可以再现自然牙齿所特有的通透性。

关键词: 瓷贴面, 透射率, 牙釉质

Abstract:

Objective  To measure the spectral transmittance of Cerinate porcelain veneer and enamel in different color and different thickness. Methods  Samples of Cerinate porcelain veneers were prepared in different thickness(0.50 mm、0.75 mm、1.00 mm) and different Vita shade(A1、A2、A3). Enamel samples in shade A2 were made with three thickness(0.50 mm、0.75 mm、1.00 mm). A spectrophotometer with spectra range(380-800 nm) was employed to measure the spectral transmittance. Results  Spectral transmittance decreased with the increasing in the thickness of specimens and decreasing in the color darkness. The transmittance of Cerinate porcelain veneer material and enamel in the same color and same thickness hadn′t significant difference. Conclusion  The key factor to spectral transmittance of porcelain veneer materials is veneer′s thickness, and the color of the materials has also some influence on it. Cerinate porcelain veneers can properly recover the transparency of teeth.

Key words: porcelainveneer, spectraltransmittance, enamel