水泥和印记方法对当前单体石块边缘和内部适应的影响 - - 3D扫描评估评估
Sebnem Yilbas1, Deger Ongul2, Burcin Karatasli3
1Graduate student, Istanbul University, Institute of Graduate Studies in Health Sciences Department of Prosthodontics, DDD, PhD, Istanbul, Turkey.
Journal of clinical and experimental dentistry
|September 2, 2024
概括
数字和传统的印记为单体皇冠产生临床上可接受的边缘和内部差距. 使用Prettau和ICE Zircon材料的传统打印显示了最小的边缘差距,而双固化水泥导致了更大的差距.
科学领域:
- 牙科材料科学 牙科材料科学
- 数字牙科数字牙科
- 牙修复 牙修复 牙修复 牙修复 牙修复
背景情况:
- 评估边缘和内部差距对于完整的陶皇冠修复的成功至关重要.
- 印记技术和水泥类型可以影响假牙的适合性.
研究的目的:
- 为了比较使用数字与传统打印技术制造的单体皇冠的边缘和内部间隙差异.
- 评估不同单体材料和凝固方法对皇冠适合性的影响.
主要方法:
- 单立体皇冠是由四种材料 (Cerasmart,初始LRF块,Zirconia Prettau,ICE Zircon) 使用CAD-CAM技术制造的.
- 采用了两种打印方法:数字 (口内扫描仪) 和传统 (PVS).
- 皇冠用光固化或双固化水泥固,并使用3D图像分析测量边缘/内部差距.
主要成果:
- 与所有材料组的传统PVS打印相比,数字打印导致了显著更大的边际差距.
- 在测试的单体材料中观察到边际差距的显著差异.
- 从常规印刷品制造的Prettau和ICE石皇冠表现出最小的边缘差距.
结论:
- 数字和传统的打印方法都能产生具有临床上可接受的边缘和内部适合的单体皇冠.
- 传统的打印,特别是使用Prettau和ICE Zircon,可能会提供更高的边际精度.
- 双固化水泥导致与轻固化水泥相比,边际差距明显更大.
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