Manufacturing a First Upper Molar Dental Forceps Using Continuous Fiber Reinforcement (CFR) Additive Manufacturing Technology with Carbon-Reinforced Polyamide
3D printing is an emerging and disruptive technology, supporting the field of medicine over the past decades. In the recent years, the use of additive manufacturing (AM) has had a strong impact on everyday dental applications. Despite remarkable previous results from interdisciplinary research teams...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/16/2647 |
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| author | Roland Told Gyula Marada Szilard Rendeki Attila Pentek Balint Nagy Ferenc Jozsef Molnar Peter Maroti |
| author_facet | Roland Told Gyula Marada Szilard Rendeki Attila Pentek Balint Nagy Ferenc Jozsef Molnar Peter Maroti |
| author_sort | Roland Told |
| collection | DOAJ |
| description | 3D printing is an emerging and disruptive technology, supporting the field of medicine over the past decades. In the recent years, the use of additive manufacturing (AM) has had a strong impact on everyday dental applications. Despite remarkable previous results from interdisciplinary research teams, there is no evidence or recommendation about the proper fabrication of handheld medical devices using desktop 3D printers. The aim of this study was to critically examine and compare the mechanical behavior of materials printed with FFF (fused filament fabrication) and CFR (continuous fiber reinforcement) additive manufacturing technologies, and to create and evaluate a massive and practically usable right upper molar forceps. Flexural and torsion fatigue tests, as well as Shore D measurements, were performed. The tensile strength was also measured in the case of the composite material. The flexural tests revealed the measured force values to have a linear correlation with the bending between the 10 mm (17.06 N at 5000th cycle) and 30 mm (37.99 N at 5000th cycle) deflection range. The findings were supported by scanning electron microscopy (SEM) images. Based on the results of the mechanical and structural tests, a dental forceps was designed, 3D printed using CFR technology, and validated by five dentists using a Likert scale. In addition, the vertical force of extraction was measured using a unique molar tooth model, where the reference test was carried out using a standard metal right upper molar forceps. Surprisingly, the tests revealed there to be no significant differences between the standard (84.80 N ± 16.96 N) and 3D-printed devices (70.30 N ± 4.41 N) in terms of extraction force in the tested range. The results also highlighted that desktop CFR technology is potentially suitable for the production of handheld medical devices that have to withstand high forces and perform load-bearing functions. |
| first_indexed | 2024-03-10T08:27:27Z |
| format | Article |
| id | doaj.art-86d12ae7d0b54ad580e83e440f09a96e |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T08:27:27Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-86d12ae7d0b54ad580e83e440f09a96e2023-11-22T09:22:13ZengMDPI AGPolymers2073-43602021-08-011316264710.3390/polym13162647Manufacturing a First Upper Molar Dental Forceps Using Continuous Fiber Reinforcement (CFR) Additive Manufacturing Technology with Carbon-Reinforced PolyamideRoland Told0Gyula Marada1Szilard Rendeki2Attila Pentek3Balint Nagy4Ferenc Jozsef Molnar5Peter Maroti63D Printing and Visualization Centre, University of Pecs, Boszorkány Street 2, 7624 Pécs, HungaryClinical Centre, Department of Dentistry, Oral and Maxillofacial Surgery, University of Pecs, Dischka Győző Street 5, 7621 Pécs, HungaryMedical Simulation Education Centre, Medical School, University of Pecs, Szigeti Road 12, 7624 Pécs, Hungary3D Printing and Visualization Centre, University of Pecs, Boszorkány Street 2, 7624 Pécs, HungaryClinical Centre, Department of Anesthesiology and Intensive Therapy, University of Pecs, Ifjúság Roud 13, 7624 Pécs, HungaryMedical Simulation Education Centre, Medical School, University of Pecs, Szigeti Road 12, 7624 Pécs, Hungary3D Printing and Visualization Centre, University of Pecs, Boszorkány Street 2, 7624 Pécs, Hungary3D printing is an emerging and disruptive technology, supporting the field of medicine over the past decades. In the recent years, the use of additive manufacturing (AM) has had a strong impact on everyday dental applications. Despite remarkable previous results from interdisciplinary research teams, there is no evidence or recommendation about the proper fabrication of handheld medical devices using desktop 3D printers. The aim of this study was to critically examine and compare the mechanical behavior of materials printed with FFF (fused filament fabrication) and CFR (continuous fiber reinforcement) additive manufacturing technologies, and to create and evaluate a massive and practically usable right upper molar forceps. Flexural and torsion fatigue tests, as well as Shore D measurements, were performed. The tensile strength was also measured in the case of the composite material. The flexural tests revealed the measured force values to have a linear correlation with the bending between the 10 mm (17.06 N at 5000th cycle) and 30 mm (37.99 N at 5000th cycle) deflection range. The findings were supported by scanning electron microscopy (SEM) images. Based on the results of the mechanical and structural tests, a dental forceps was designed, 3D printed using CFR technology, and validated by five dentists using a Likert scale. In addition, the vertical force of extraction was measured using a unique molar tooth model, where the reference test was carried out using a standard metal right upper molar forceps. Surprisingly, the tests revealed there to be no significant differences between the standard (84.80 N ± 16.96 N) and 3D-printed devices (70.30 N ± 4.41 N) in terms of extraction force in the tested range. The results also highlighted that desktop CFR technology is potentially suitable for the production of handheld medical devices that have to withstand high forces and perform load-bearing functions.https://www.mdpi.com/2073-4360/13/16/26473D printingadditive manufacturingdental forcepsCFR (continuous fiber reinforcement)fatigue testmechanical testing |
| spellingShingle | Roland Told Gyula Marada Szilard Rendeki Attila Pentek Balint Nagy Ferenc Jozsef Molnar Peter Maroti Manufacturing a First Upper Molar Dental Forceps Using Continuous Fiber Reinforcement (CFR) Additive Manufacturing Technology with Carbon-Reinforced Polyamide Polymers 3D printing additive manufacturing dental forceps CFR (continuous fiber reinforcement) fatigue test mechanical testing |
| title | Manufacturing a First Upper Molar Dental Forceps Using Continuous Fiber Reinforcement (CFR) Additive Manufacturing Technology with Carbon-Reinforced Polyamide |
| title_full | Manufacturing a First Upper Molar Dental Forceps Using Continuous Fiber Reinforcement (CFR) Additive Manufacturing Technology with Carbon-Reinforced Polyamide |
| title_fullStr | Manufacturing a First Upper Molar Dental Forceps Using Continuous Fiber Reinforcement (CFR) Additive Manufacturing Technology with Carbon-Reinforced Polyamide |
| title_full_unstemmed | Manufacturing a First Upper Molar Dental Forceps Using Continuous Fiber Reinforcement (CFR) Additive Manufacturing Technology with Carbon-Reinforced Polyamide |
| title_short | Manufacturing a First Upper Molar Dental Forceps Using Continuous Fiber Reinforcement (CFR) Additive Manufacturing Technology with Carbon-Reinforced Polyamide |
| title_sort | manufacturing a first upper molar dental forceps using continuous fiber reinforcement cfr additive manufacturing technology with carbon reinforced polyamide |
| topic | 3D printing additive manufacturing dental forceps CFR (continuous fiber reinforcement) fatigue test mechanical testing |
| url | https://www.mdpi.com/2073-4360/13/16/2647 |
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