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牙氧化,牛牙和质-牙结构的光学特性

Oscar E Pecho¹, Paula Benetti², Javier Ruiz-López³

¹Graduate Program in Dentistry, ATITUS Educação, Passo Fundo, RS, Brazil.

Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.]

|December 7, 2023

概括

三个单位的伊特里亚稳定四角形锡尔科尼亚多晶 (3Y-TZP) 牙科锡尔科尼亚具有与牛牙相似的光学特性. 与天然牙结构相比,五个单位的伊特里亚稳定部分稳定 (5Y-PSZ) 也表现出明显的光学特征.

科学领域:

牙科材料科学牙科材料科学
陶的光学特性陶的光学特性
生物材料是一种生物材料.

背景情况:

陶由于其机械强度,在修复性牙科中被广泛使用.
了解的光学特性对于实现美学效果至关重要.
合金成分的变化 (例如,3Y-TZP与5Y-PSZ) 影响它们的光学行为.

研究的目的:

为了评估3Y-TZP和5Y-PSZ的光学特性和半透明度.
为了将这些特性与天然牛牙和质/牙结构进行比较.
为临床医生提供数据,以优化牙科修复中的美学结果.

主要方法:

评估了0.5毫米厚的3Y-TZP (3Y-NC.5) 和0.5毫米厚的 (5Y-NC.5) 和1.4毫米厚的 (5Y-C.14) 石样本.
使用0.5毫米厚的牙和1.4毫米厚的牛牙的牙.
使用库贝尔卡-蒙克模型计算了散射,吸收,透射率和白度;进行了统计分析.

主要成果:

光学特性 (反射率,散射率,吸收率,透射率) 取决于波长.
在石和牙结构中,散射是主要的光学灭绝过程.
与牙相比,3Y-TZP显示了可接受的半透明度,5Y-PSZ与特定厚度的牙/牙相比.

结论:

3Y-TZP和5Y-PSZ牙氧化具有不同的光学特性,与彼此相比和牛牙结构相比.
3Y-TZP表现出相对半透明度参数,类似于牛牙.
对于临床医生来说,了解这些光学特性对于在修复性牙科中实现最佳美学结果至关重要.

关键词:

吸收吸收吸收吸收散射散射是一种散射.半透明度参数的参数.传输率传输率传输率锡尔科尼亚是指一种的.

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