In-vitro accuracy of complete arch scans of the fully dentate and the partially edentulous maxilla
Purpose: This in-vitro study aimed to compare the accuracy of complete arch scans (CAS) of a fully dentate (FD) and a partially edentulous (PE) maxillary model. Three intraoral scanning systems were used: Omnicam AC (OC), TRIOS 4 (TR), and Primescan (PS). - Methods: Each intraoral scanner was used t...
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| Hauptverfasser: | , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2022
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| In: |
Journal of prosthodontic research
Year: 2022, Jahrgang: 66, Heft: 4, Pages: 538-545 |
| ISSN: | 1883-1958 |
| DOI: | 10.2186/jpr.JPR_D_21_00100 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.2186/jpr.JPR_D_21_00100 Verlag, lizenzpflichtig, Volltext: https://www.jstage.jst.go.jp/article/jpr/66/4/66_JPR_D_21_00100/_article 
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| Verfasserangaben: | Moritz Waldecker, Wolfgang Bömicke, Rouven Behnisch, Peter Rammelsberg, Stefan Rues |
MARC
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| 245 | 1 | 0 | |a In-vitro accuracy of complete arch scans of the fully dentate and the partially edentulous maxilla |c Moritz Waldecker, Wolfgang Bömicke, Rouven Behnisch, Peter Rammelsberg, Stefan Rues |
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| 520 | |a Purpose: This in-vitro study aimed to compare the accuracy of complete arch scans (CAS) of a fully dentate (FD) and a partially edentulous (PE) maxillary model. Three intraoral scanning systems were used: Omnicam AC (OC), TRIOS 4 (TR), and Primescan (PS). - Methods: Each intraoral scanner was used to take 30 scans each of two clinical scenarios (FD and PE) simulated by a reference model. The PE model simulated a maxilla with six prepared teeth to accommodate a jaw-spanning fixed partial denture (FPD). The missing teeth were then added to create an FD model. Five ceramic precision balls (ball centers P1-P5) mounted on metal pins were welded to the metal base on the buccal side of the dental arch. These were later used to determine dimensional (given by each 2 ball centers) and angular changes (given by each 3 or 4 ball centers) between the reference model (digitized with high precision before the tests) and the intraoral scans. Data were statistically analyzed using a type II ANOVA. - Results: The maximum mean absolute distance deviations were as follows. OC: 147 µm (FD) and 139 µm (PE). TR: 133 µm (FD) and 136 µm (PE). PS: 87 µm (FD) and 80 µm (PE). The scanning system used had a significant effect on distance deviations (p < 0.027) and CAS scanning time (p < 0.001). Dental status had no clear effect on distance deviations but did significantly affect angular changes (p < 0.001) and scanning time (p < 0.001). - Conclusion: The manufacture of jaw-spanning FPDs based on a CAS cannot yet be recommended. | ||
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