Effect of Different Preparation Depths for an Inlay-Retained Fixed Partial Denture on the Accuracy of Different Intraoral Scanners: An In Vitro Study

被引:10
作者
Khaled, Mohamed [1 ]
Sabet, Ahmed [1 ,2 ]
Ebeid, Kamal [1 ]
Salah, Tarek [1 ]
机构
[1] Ain Shams Univ, Dept Fixed Prosthodont, Fac Dent, Cairo, Egypt
[2] British Univ Egypt, Dept Fixed Prosthodont, Fac Dent, Cairo, Egypt
来源
JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY | 2022年 / 31卷 / 07期
关键词
Inlay-retained FPD; digital dentistry; fixed prosthodontics; intraoral scanners; DIGITAL IMPRESSION TECHNIQUES; DENTAL PROSTHESES; MONOLITHIC ZIRCONIA; ARCH IMPRESSIONS; CROWNS;
D O I
10.1111/jopr.13457
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Purpose The aim was to evaluate the effect of different preparation depths for inlay-retained fixed partial dentures on the accuracy of intraoral scanners. Materials and Methods Tooth preparations for two inlay-retained fixed partial dentures were done and divided according to depth of the preparation. Group A: 2 mm pulpal floor depth, 3 mm gingival floor depth and Group B: 3 mm pulpal floor depth, 4mm gingival floor depth. The CEREC Omnicam 4.4.4, Omnicam 4.6.2. Trios3 and Medit i500 intraoral scanners were used in this study. Tooth preparations were scanned by each scanner 10 times. The STL files obtained from the intraoral scanners were compared to the reference models (trueness) and within each test group (precision) using a 3D comparison software. Data were then statistically analyzed. Results Regarding trueness, two-way ANOVA revealed significant differences between the different types of scanners (p < 0.001) (Omnicam 4.4.4: 65.09 +/- 2.87 Omnicam 4.6.1: 52.73 +/- 3.31 Medit i500: 58.45 +/- 2.63 Trios 3: 41.79 +/- 4.42). Preparation depth had no significant influence on the trueness (p = 0.083). For precision two-way ANOVA revealed significant differences between the different types of scanners (p < 0.001). Preparation depth had no significant influence on the precision (p = 0.111). Statistically significant interactions were found between the different variables. Conclusions The depth of preparation did not have an influence on the accuracy of different scanners. However, the type of scanner influenced the accuracy of digital impressions with Trios3 showing the highest accuracy.
引用
收藏
页码:601 / 605
页数:5
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