Accuracy of Extraoral Digital Impressions with Multi-Unit Implants
The aim of this in vitro study was to evaluate the accuracy of impressions made using two different silicones and corresponding stone casts in full-arch implant rehabilitation, using two laboratory scanners. A master model with six dental implants was created, scanned with a 12-megapixel scanner and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/15/8769 |
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| author | Manuel António Sampaio-Fernandes Ricardo Pinto Paulo Rocha Almeida Maria Margarida Sampaio-Fernandes Duarte Marques Maria Helena Figueiral |
| author_facet | Manuel António Sampaio-Fernandes Ricardo Pinto Paulo Rocha Almeida Maria Margarida Sampaio-Fernandes Duarte Marques Maria Helena Figueiral |
| author_sort | Manuel António Sampaio-Fernandes |
| collection | DOAJ |
| description | The aim of this in vitro study was to evaluate the accuracy of impressions made using two different silicones and corresponding stone casts in full-arch implant rehabilitation, using two laboratory scanners. A master model with six dental implants was created, scanned with a 12-megapixel scanner and used as digital master model. Ten implant impressions were obtained via two silicone impressions systems—Coltene<sup>®</sup> and Zhermack<sup>®</sup>—using the open-tray technique and poured gypsum. Two extraoral scanning systems (S600 ARTI Zirkonzhan<sup>®</sup> and Identica T500 Medit<sup>®</sup>) were used to scan the impressions and stone casts. Best-fit superimpositions were conducted between the master model and the virtual models obtained. A significance level of <i>p</i> < 0.05 was considered. The accuracy of the Medit<sup>®</sup> scanner was 82.26 [53.18; 111.34] µm for Coltene<sup>®</sup> silicone and 87.43 [72.00; 102.86] µm for Zhermack<sup>®</sup> silicone, and the accuracy of the Zirkonzhan<sup>®</sup> scanner was 69.90 [62.37; 77.43] µm for Coltene<sup>®</sup> silicone and 80.67 [65.77; 95.57] µm for Zhermack<sup>®</sup> silicone, without significant differences between scanners. When comparing the two silicones, no significant differences were found for the Medit<sup>®</sup> (<i>p</i> = 0.112) or Zirkonzhan<sup>®</sup> scanners (<i>p</i> = 0.162). The Zhermack<sup>®</sup> scanner showed better accuracy than the corresponding stone casts in the two scanners, Medit<sup>®</sup> (<i>p</i> = 0.019) and Zirkonzahn<sup>®</sup> (<i>p</i> = 0.002). The extraoral digitalization of impressions in edentulous dental arches with six implants proves to be a valid technique. |
| first_indexed | 2024-03-11T00:31:54Z |
| format | Article |
| id | doaj.art-ff67a6b752984a84a61da5606e9a9b78 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T00:31:54Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ff67a6b752984a84a61da5606e9a9b782023-11-18T22:37:18ZengMDPI AGApplied Sciences2076-34172023-07-011315876910.3390/app13158769Accuracy of Extraoral Digital Impressions with Multi-Unit ImplantsManuel António Sampaio-Fernandes0Ricardo Pinto1Paulo Rocha Almeida2Maria Margarida Sampaio-Fernandes3Duarte Marques4Maria Helena Figueiral5Faculdade de Medicina Dentária, Universidade do Porto, 4200-393 Oporto, PortugalFaculdade de Medicina Dentária, Universidade de Lisboa, 1649-003 Lisbon, PortugalFaculdade de Medicina Dentária, Universidade do Porto, 4200-393 Oporto, PortugalFaculdade de Medicina Dentária, Universidade do Porto, 4200-393 Oporto, PortugalFaculdade de Medicina Dentária, Universidade de Lisboa, 1649-003 Lisbon, PortugalFaculdade de Medicina Dentária, Universidade do Porto, 4200-393 Oporto, PortugalThe aim of this in vitro study was to evaluate the accuracy of impressions made using two different silicones and corresponding stone casts in full-arch implant rehabilitation, using two laboratory scanners. A master model with six dental implants was created, scanned with a 12-megapixel scanner and used as digital master model. Ten implant impressions were obtained via two silicone impressions systems—Coltene<sup>®</sup> and Zhermack<sup>®</sup>—using the open-tray technique and poured gypsum. Two extraoral scanning systems (S600 ARTI Zirkonzhan<sup>®</sup> and Identica T500 Medit<sup>®</sup>) were used to scan the impressions and stone casts. Best-fit superimpositions were conducted between the master model and the virtual models obtained. A significance level of <i>p</i> < 0.05 was considered. The accuracy of the Medit<sup>®</sup> scanner was 82.26 [53.18; 111.34] µm for Coltene<sup>®</sup> silicone and 87.43 [72.00; 102.86] µm for Zhermack<sup>®</sup> silicone, and the accuracy of the Zirkonzhan<sup>®</sup> scanner was 69.90 [62.37; 77.43] µm for Coltene<sup>®</sup> silicone and 80.67 [65.77; 95.57] µm for Zhermack<sup>®</sup> silicone, without significant differences between scanners. When comparing the two silicones, no significant differences were found for the Medit<sup>®</sup> (<i>p</i> = 0.112) or Zirkonzhan<sup>®</sup> scanners (<i>p</i> = 0.162). The Zhermack<sup>®</sup> scanner showed better accuracy than the corresponding stone casts in the two scanners, Medit<sup>®</sup> (<i>p</i> = 0.019) and Zirkonzahn<sup>®</sup> (<i>p</i> = 0.002). The extraoral digitalization of impressions in edentulous dental arches with six implants proves to be a valid technique.https://www.mdpi.com/2076-3417/13/15/8769three-dimensional scannerdental CAD/CAMdigital dentistrydigital implant impressionextraoral scannerfull-arch rehabilitation |
| spellingShingle | Manuel António Sampaio-Fernandes Ricardo Pinto Paulo Rocha Almeida Maria Margarida Sampaio-Fernandes Duarte Marques Maria Helena Figueiral Accuracy of Extraoral Digital Impressions with Multi-Unit Implants Applied Sciences three-dimensional scanner dental CAD/CAM digital dentistry digital implant impression extraoral scanner full-arch rehabilitation |
| title | Accuracy of Extraoral Digital Impressions with Multi-Unit Implants |
| title_full | Accuracy of Extraoral Digital Impressions with Multi-Unit Implants |
| title_fullStr | Accuracy of Extraoral Digital Impressions with Multi-Unit Implants |
| title_full_unstemmed | Accuracy of Extraoral Digital Impressions with Multi-Unit Implants |
| title_short | Accuracy of Extraoral Digital Impressions with Multi-Unit Implants |
| title_sort | accuracy of extraoral digital impressions with multi unit implants |
| topic | three-dimensional scanner dental CAD/CAM digital dentistry digital implant impression extraoral scanner full-arch rehabilitation |
| url | https://www.mdpi.com/2076-3417/13/15/8769 |
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