烧结温度偏差对多层的半透明度和颜色的影响
Fan Yang1, Luyao Zhang1, Minghui Yang2
1Graduate School of Dalian Medical University, Dalian, China.
BMC oral health
|April 18, 2024
概括
不准确的烧结温度显著改变了多层的半透明度和颜色. 然而,所有经过测试的合金材料都表现出临床上可接受的颜色变化,即使在烧结温度偏差的情况下.
科学领域:
- 牙科材料科学 牙科材料科学
- 陶工程 陶工程 陶工程
- 生物材料是一种生物材料.
背景情况:
- 由于其美学特性,多层石材料在牙科修复中被广泛使用.
- 准确的烧结参数对于实现最佳材料性能和临床性能至关重要.
- 偏离推的烧结温度可能会影响的光学和物理特性.
研究的目的:
- 研究不准确的烧结温度对四种不同的多层的半透明度和颜色的影响.
- 在各种烧结条件下量化颜色差异和半透明度参数 (TP) 值.
- 评估由于烧结温度偏差导致的颜色变化的临床可接受性.
主要方法:
- 准备了四种多层合金材料 (Upcera TT-GT,Upcera TT-ML,Cercon xt ML,Lava Esthetic) 的200个样本. 这些材料包括:
- 样品的烧结温度比制造商推低5%,比推低2.5%,比推高2.5%,比制造商推高5%.
- 半透明度参数 (TP) 和颜色差异 (∆E00) 被测量并使用三向ANOVA,单向ANOVA和Tukey的后 hoc测试进行统计分析.
主要成果:
- 烧结温度,材料类型和样品截面显著影响TP值 (P < .05),对不同材料的影响各不相同.
- 较高的烧结温度增加了Cercon xt ML的TP,但降低了Lava Esthetic的TP.
- 颜色差异 (∆E00) 受材料类型和烧结温度 (P < .05) 的显著影响,所有标本都显示出临床上可接受的颜色变化 (∆E00 < 2.23).
结论:
- 烧结温度的偏差显著影响了多层的半透明度和颜色.
- 烧结温度对半透明度的影响取决于材料.
- 由于不准确的烧结温度导致的颜色变化,在所有测试的石材料中都处于临床上可接受的范围内.
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