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三种照明光源对全瓷材料半透明性影响的实验研究

The influence of three illuminations on the translucency of dental porcelain.
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摘要 目的:研究三种常用照明光源(标准A光源,标准D65光源及F2光源)对牙科美容修复材料半透明性变化的影响。方法:选择临床常用牙科陶瓷Cergogold,3种树脂粘结材料Calibra、Bisco、帕娜碧亚TMF,采用老化处理方法之后在标准D65光源,标准A光源,及F2光源照射条件下测试其L*,a*,b*值,并计算出透明参数,比较在不同光源照射下半透明性的变化。结果:不同光源对材料的半透明性会产生影响。在标准A光源及F2光源照射下,材料的半透明性高于标准D65光源照射。且无论是否经过老化处理,在标准A光源及F2光源照射时,试件半透明性均高于在标准D65光源照射时所得值。结论:临床全瓷修复比色时应考虑到光源对全瓷材料半透明性的影响,从而使颜色更加逼真。 Objective:To evaluate the influence of three illuminations on the translucency of dental porcelain and resin cements. Method: TP of three shades of dental porcelain were measured before and after thermocycling for 5000 cycles relative to the CIE standard illuminations D65,A and F2 over white and black backgrounds. Result:Thermocychng influenced the TP values, and the illuminant influenced the TP values (p 〈 0.05). Thermocycling influenced the ATP values caused by the change of illuminant and translucency under illuminant A and F2 was higher than under illuminant D65. Conclusion: Difference in translucency by illumination should be considered when shade matching.
出处 《临床口腔医学杂志》 2008年第5期261-262,共2页 Journal of Clinical Stomatology
基金 西安市科技计划资助项目(YF07166)
关键词 半透明性 照明光源 牙科陶瓷 树脂粘结剂 translucency illumination dental porcelain resin cement
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参考文献5

  • 1Yong-Keun Lee. Changes in the translucency of porcelain and repairing resin composite by the illumination[J]. Dent Mater, 2007, 23: 492-497.
  • 2O'Brien Wj. Double layer effect and other optical phenomena related to esthetics [I]. Dent Clin N Am, 1985,29:667-672.
  • 3Inokoshi S, Burrow MF, Kataumi M, et al. Opacity and color changes of tooth-colored restorative materials [J]. Oper Dent, 1996, 21 : 73- 80.
  • 4Heffeman MJ, Aquilino SA, Diaz-Amold AM, et al. Relative translucency of six all-ceramic systems. Part Ⅱ: core and veneer materials [J]. J Prosthet Dent, 2002,88:10-15.
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