Accuracy of inter-arch measurements performed on digital models generated using two types of intraoral scanners: Ex vivo studyAccuracy of inter-arch measurements performed on digital models generated using two types of intraoral scanners: Ex vivo study
- Other Titles
- Accuracy of inter-arch measurements performed on digital models generated using two types of intraoral scanners: Ex vivo study
- Authors
- 유조광; 강윤규; 이수정; 김성훈; 문철현
- Issue Date
- Mar-2020
- Publisher
- 대한치과의사협회
- Keywords
- Digital models; 3D intraoral scanner; Inter-arch measurements
- Citation
- 대한치과의사협회지, v.58, no.4, pp.194 - 205
- Journal Title
- 대한치과의사협회지
- Volume
- 58
- Number
- 4
- Start Page
- 194
- End Page
- 205
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/27155
- DOI
- 10.22974/jkda.2020.58.4.001
- ISSN
- 0376-4672
- Abstract
- Objective: The purpose of this study was to evaluate the accuracy of the inter-arch relationship of digital models generated using two types of intraoral scanners.
Methods: In total, 34 plaster model samples were used. Two corresponding digital models were created using two types of intraoral scanners. A total of 15 variables were measured. The plaster model was directly measured using a digital caliper, while the digital models were measured using a software. The accuracy of the measurements was evaluated using repeated measures analysis of variance and the Friedman test.
Results: Among the 15 measurements, 6 measurements[Overjet, Overbite, DZ_11-41 (Distance between the gingival zenith of maxillary right central incisor and mandibular right central incisor), DZ_16-46 (Distance between the gingival zenith of maxillary right first molar and mandibular right first molar), DZ_13-33 (Distance between the gingival zenith of maxillary right canine and mandibular left canine), and DZ_23-43 (Distance between the gingival zenith of maxillary left canine and mandibular right canine)]showed statistically significant differences, with DZ_23-43 showing the largest difference of 0.18 mm. The other measurements showed no statistically significant differences.
Conclusions: Regardless of the type of scanner used for preparation, digital models can be used as clinically acceptable alternatives to conventional plaster models.
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