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엔도크라운 디지털 인상을 위한 구강스캐너 3종의 정확도 평가: 실험실 연구

Other Titles
 Evaluation of the accuracy of three different intraoral scanners for endocrown digital impression: An in vitro study 
 Çağrı Ural  ;  박지만  ;  Necati Kaleli  ;  Esma Çağlayan 
 Journal of Korean Academy of Prosthodontics (대한치과보철학회지), Vol.58(4) : 282-289, 2020-10 
Journal Title
Journal of Korean Academy of Prosthodontics(대한치과보철학회지)
Issue Date
Cavity design ; Endocrown ; Intraoral scanners ; Precision ; Trueness ; 와동 형태 ; 엔도크라운 ; 구강스캐너 ; 정밀도 ; 진도
Purpose: The aim of this in vitro study was to evaluate the accuracy of three different intraoral scanners (IOSs) on digital impressions of different types of endocrown cavity preparations.
Materials and methods: Two human mandibular molar teeth were prepared with different endocrown abutment designs: one with a buccal wall (Class 2) and the other without a buccal wall (Class 3). Both cavity designs were scanned using a reference desktop scanner (E3) and three different intraoral scanners: Trios3 (TRI group), Cerec Omnicam (CER group), and i500 (I5 group). The obtained Standard Tessellation Language (.stl) datasets were exported to metrology software. The precision was evaluated based on deviations among repeated scan models recorded by each IOS. The trueness was evaluated based on deviations between the reference data and repeated scans. For detecting interaction, data were statistically analyzed using a univariate analysis of variance (ANOVA) and for analyzing the comparison of the test groups data were analyzed by one-way ANOVA and post-hoc Tukey test at the significance level of .05.
Results: The deviation values for both cavity designs in the I5 group were significantly lower than those in the other IOS groups in terms of trueness. For both cavity designs, the TRI group exhibited better precision than the other IOS groups.
Conclusion: Different technologies of IOS device’s and different endocrown prepration designs affected the accuracy of the digital scans.
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2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Park, Ji-Man(박지만) ORCID logo https://orcid.org/0000-0003-0018-1166
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