Effect of various digital cement space settings on the adaptation of CAD/CAM occlusal veneer "micro-ct evaluation"

被引：12
作者：
Elbadawy, Adel A. [1 ,2 ]
Abd Elaziz, Mohammed H. [1 ,2 ]
Alnazzawi, Ahmed A. [2 ]
Borzangy, Sary S. [2 ]
机构：
[1] Al Azhar Univ, Fac Dent Med, Dept Fixed Prosthodont, Cairo, Egypt
[2] Taibah Univ, Hosp & Coll Dent, Dept Substitut Dent Sci, Madinah, Saudi Arabia
来源：
DENTAL MATERIALS JOURNAL | 2021年 / 40卷 / 03期
关键词：
Occlusal veneer; Marginal adaptation; Internal adaptation; Lithium disilicate; CAD/CAM; MARGINAL FIT; INTERNAL ADAPTATION; CROWNS; SYSTEMS; TOMOGRAPHY; ZIRCONIA; SELECTION; ACCURACY; COPINGS;
D O I：
10.4012/dmj.2020-226
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
The aim was to evaluate the adaptation of CAD/CAM occlusal veneer with different cement space settings using micro CT scan. Three groups of IPS e.max-CAD lithium disilicate occlusal veneers with different cement space settings (30, 40, and 50 mu m) were produced. A circle with 20 different diameters was centered at the center of the same image position of every scanned specimen using micro CT scan to measure four different locations [Occlusal (OCG), axial (AXG), Marginal (MAG), and absolute marginal discrepancy values (AMD)]. Kruskal-Wallis test revealed that there were no statistical differences between (OCG), (AXG), and (AMD) tested groups (p>0.05), and statistical differences between (MAG) group and other two groups (p<0.05). An increase in the digital cement space significantly improved the marginal fit of IPS e.max-CAD occlusal veneer.
引用
收藏
页码：625 / 630
页数：6
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