MECHANICAL PROPERTIES OF 3D PRINTED AND MILLED SPACE MAINTAINERS USED IN PREVENTIVE ORTHODONTICS
Aim of the study: This study aimed to evaluate the mechanical strength, when subjected to compressive forces, of aesthetic space maintainers manufactured through various digitally-assisted methods specifically, additive techniques (LCD and SLA) and subtractive milling. Materials and methods: Space m...
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| Format: | Article |
| Language: | English |
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Romanian Society of Oral Rehabilitation
2024-12-01
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| Series: | Romanian Journal of Oral Rehabilitation |
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| Online Access: | https://rjor.ro/mechanical-properties-of-3d-printed-and-milled-space-maintainers-used-in-preventive-orthodontics/ |
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| author | Bianca Dragoș Dana-Cristina Bratu George Popa Magda-Mihaela Luca Remus-Christian Bratu Cosmin Sinescu |
| author_facet | Bianca Dragoș Dana-Cristina Bratu George Popa Magda-Mihaela Luca Remus-Christian Bratu Cosmin Sinescu |
| author_sort | Bianca Dragoș |
| collection | DOAJ |
| description | Aim of the study: This study aimed to evaluate the mechanical strength, when subjected to compressive forces, of aesthetic space maintainers manufactured through various digitally-assisted methods specifically, additive techniques (LCD and SLA) and subtractive milling. Materials and methods: Space maintainer designs were digitally modelled in Exocad and then produced by LCD printing using TC100 resin and plant-based Anycubic resin, by stereolithography (SLA) printing using Next Dent and Harz Labs resins, and by a subtractive technique using Tempo Block PMMA milling discs (Sid Dental). All samples underwent compression testing using the Zwick/Roell Z 005 machine. Results: A one-way ANOVA statistical test revealed significant differences in the compression breaking force among the four groups with milled samples showing a significantly higher strength than all 3D printed samples (LCD, SLA_Harz, and SLA_Next). Tukey post hoc tests confirmed these differences (p < 0.001), while no significant differences were found among the 3D printed groups. The soy-based Anycubic resin samples exhibited high elasticity, leading to deformation without fracture, and were excluded from the study due to their inability to properly maintain the mesiodistal space. Conclusions: Beyond the aesthetic benefit, the milled space maintainers proved to offer a substantial advantage in terms of mechanical strength over those fabricated with additive printing techniques (LCD and SLA), making the subtractive manufacturing technique more suitable for clinical applications that involve higher mechanical stress. |
| format | Article |
| id | doaj-art-3ae5db4b31fd4ffd8d1419f621db990f |
| institution | Kabale University |
| issn | 2066-7000 2601-4661 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Romanian Society of Oral Rehabilitation |
| record_format | Article |
| series | Romanian Journal of Oral Rehabilitation |
| spelling | doaj-art-3ae5db4b31fd4ffd8d1419f621db990f2025-01-22T11:51:49ZengRomanian Society of Oral RehabilitationRomanian Journal of Oral Rehabilitation2066-70002601-46612024-12-0116466667310.62610/RJOR.2024.4.16.64MECHANICAL PROPERTIES OF 3D PRINTED AND MILLED SPACE MAINTAINERS USED IN PREVENTIVE ORTHODONTICSBianca DragoșDana-Cristina BratuGeorge PopaMagda-Mihaela LucaRemus-Christian BratuCosmin SinescuAim of the study: This study aimed to evaluate the mechanical strength, when subjected to compressive forces, of aesthetic space maintainers manufactured through various digitally-assisted methods specifically, additive techniques (LCD and SLA) and subtractive milling. Materials and methods: Space maintainer designs were digitally modelled in Exocad and then produced by LCD printing using TC100 resin and plant-based Anycubic resin, by stereolithography (SLA) printing using Next Dent and Harz Labs resins, and by a subtractive technique using Tempo Block PMMA milling discs (Sid Dental). All samples underwent compression testing using the Zwick/Roell Z 005 machine. Results: A one-way ANOVA statistical test revealed significant differences in the compression breaking force among the four groups with milled samples showing a significantly higher strength than all 3D printed samples (LCD, SLA_Harz, and SLA_Next). Tukey post hoc tests confirmed these differences (p < 0.001), while no significant differences were found among the 3D printed groups. The soy-based Anycubic resin samples exhibited high elasticity, leading to deformation without fracture, and were excluded from the study due to their inability to properly maintain the mesiodistal space. Conclusions: Beyond the aesthetic benefit, the milled space maintainers proved to offer a substantial advantage in terms of mechanical strength over those fabricated with additive printing techniques (LCD and SLA), making the subtractive manufacturing technique more suitable for clinical applications that involve higher mechanical stress.https://rjor.ro/mechanical-properties-of-3d-printed-and-milled-space-maintainers-used-in-preventive-orthodontics/preventive orthodonticsspace maintainersmilled3d printedmetal-freemechanical strength |
| spellingShingle | Bianca Dragoș Dana-Cristina Bratu George Popa Magda-Mihaela Luca Remus-Christian Bratu Cosmin Sinescu MECHANICAL PROPERTIES OF 3D PRINTED AND MILLED SPACE MAINTAINERS USED IN PREVENTIVE ORTHODONTICS Romanian Journal of Oral Rehabilitation preventive orthodontics space maintainers milled 3d printed metal-free mechanical strength |
| title | MECHANICAL PROPERTIES OF 3D PRINTED AND MILLED SPACE MAINTAINERS USED IN PREVENTIVE ORTHODONTICS |
| title_full | MECHANICAL PROPERTIES OF 3D PRINTED AND MILLED SPACE MAINTAINERS USED IN PREVENTIVE ORTHODONTICS |
| title_fullStr | MECHANICAL PROPERTIES OF 3D PRINTED AND MILLED SPACE MAINTAINERS USED IN PREVENTIVE ORTHODONTICS |
| title_full_unstemmed | MECHANICAL PROPERTIES OF 3D PRINTED AND MILLED SPACE MAINTAINERS USED IN PREVENTIVE ORTHODONTICS |
| title_short | MECHANICAL PROPERTIES OF 3D PRINTED AND MILLED SPACE MAINTAINERS USED IN PREVENTIVE ORTHODONTICS |
| title_sort | mechanical properties of 3d printed and milled space maintainers used in preventive orthodontics |
| topic | preventive orthodontics space maintainers milled 3d printed metal-free mechanical strength |
| url | https://rjor.ro/mechanical-properties-of-3d-printed-and-milled-space-maintainers-used-in-preventive-orthodontics/ |
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