In vitro comparison of internal and marginal adaptation between printed and milled onlays
Author
Cantó-Navés, Oriol
Michels, Kyra
Figueras-Alvarez, Oscar
Fernández-Villar, Sandra
Cabratosa-Termes, Josep
Roig, Miguel
Publication date
2023ISSN
1996-1944
Abstract
Statement of problem: Nowadays, milling is still the gold standard for fabricating indirect restorations, but to overcome its disadvantages, there are alternatives, such as 3D printing. Purpose: This study aimed to compare the gaps between the prepared tooth and milled and printed onlays fabricated with the same CAD design. It also aimed to determine the gap reproducibility across onlays fabricated by 3D printing and milling. Methods: A resin tooth was prepared for an onlay. After scanning the preparation, an onlay was designed with proprietary dental software. Next, 22 onlays were milled in a graphene-reinforced PMMA disc (Group 1), and 22 onlays were 3D-printed with a hybrid composite material (Group 2). After that, all fabricated restorations were scanned and superimposed on the scanned prepared resin tooth. Subsequently, a specific software was used to measure the margin, central, and intaglio-located gap between the milled or printed restoration and the preparation. Finally, measurements were compared with a multifactor analysis of variance. Results: The results demonstrated that printed onlays (Group 2) adapted better to the prepared tooth than the milled ones (Group 1) (p < 0.05). The comparison of standard deviations showed the better gap reproducibility of printed onlays (p < 0.05). Conclusion: This study concluded that the printed onlays adapted significantly better to the prepared tooth than the milled onlays. Printed onlays also showed significantly better gap reproducibility.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
616.3 - Pathology of the digestive system. Complaints of the alimentary canal
Keywords
Onlays impresos en 3D
Onlays fresats
Restauració indirecta
Resina
Grafè
Superposiciones impresas en 3D
Incrustaciones fresadas
Restauración indirecta
Resina
Grafeno
3D-printed onlays
Milled onlays
Indirect restoration
Resin
Graphene
Pages
12
Publisher
MDPI
Collection
16
Is part of
Materials
Citation
Cantó-Navés, Oriol; Michels, Kyra; Figueras-Alvarez, Oscar [et al.]. In vitro comparison of internal and marginal adaptation between printed and milled onlays. Materials, 2023, 16(21), 6962. Disponible en : <https://www.mdpi.com/1996-1944/16/21/6962>. Fecha de acceso: 14 dic. 2023. DOI: 10.3390/ma16216962
This item appears in the following Collection(s)
- Odontologia [228]
Rights
© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by/4.0/