Mechanical Behavior of Alkasite Posterior Restorations in Comparison to Polymeric Materials: A 3D-FEA Study
The present investigation evaluated the effect of the combination of different dental filling materials in Class I cavities under occlusal loading using three-dimensional finite elements analysis (FEA). Six computer-generated and restored models of a lower molar were created in the CAD software and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/8/1502 |
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| author | Pietro Ausiello Amanda Maria de Oliveira Dal Piva Alessandro Espedito di Lauro Franklin Garcia-Godoy Luca Testarelli João Paulo Mendes Tribst |
| author_facet | Pietro Ausiello Amanda Maria de Oliveira Dal Piva Alessandro Espedito di Lauro Franklin Garcia-Godoy Luca Testarelli João Paulo Mendes Tribst |
| author_sort | Pietro Ausiello |
| collection | DOAJ |
| description | The present investigation evaluated the effect of the combination of different dental filling materials in Class I cavities under occlusal loading using three-dimensional finite elements analysis (FEA). Six computer-generated and restored models of a lower molar were created in the CAD software and compared according to the biomechanical response during chewing load condition. Two adhesively bonded bulk restorative materials [bulk-fill resin composite (BF) or Alkasite (Alk)] were evaluated with or without the presence of a base material below (flowable resin composite or glass ionomer cement). A food bolus was placed on the occlusal surface mimicking the compressive occlusal load (600 N) during the static linear analysis. The maximum principal stress (tensile) was calculated as stress criteria in enamel, dentin and restoration. All models showed high stresses along the enamel/restoration margin with a similar stress trend for models restored with the same upper-layer material. Stress values up to 12.04 MPa (Alk) or up to 11.12 MPa (BF) were recorded at the enamel margins. The use of flexible polymeric or ionic base material in combination with bulk-fill resin composite or Alk did not reduce the stress magnitude in dentine and enamel. Class I cavities adhesively restored with bulk-fill resin composite showed lighter stress concentration as well as Alk. Therefore, adhesively bonded Alk restoration showed a promising mechanical behavior when used with different base materials or as a bulk restoration for posterior Class I cavity. |
| first_indexed | 2024-03-09T13:06:58Z |
| format | Article |
| id | doaj.art-ae92c709559a40ab8f0927c70622b91f |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T13:06:58Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-ae92c709559a40ab8f0927c70622b91f2023-11-30T21:46:58ZengMDPI AGPolymers2073-43602022-04-01148150210.3390/polym14081502Mechanical Behavior of Alkasite Posterior Restorations in Comparison to Polymeric Materials: A 3D-FEA StudyPietro Ausiello0Amanda Maria de Oliveira Dal Piva1Alessandro Espedito di Lauro2Franklin Garcia-Godoy3Luca Testarelli4João Paulo Mendes Tribst5School of Dentistry, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, ItalyAcademic Centre for Dentistry Amsterdam (ACTA), Department of Dental Materials, University of Amsterdam and Vrije Universiteit Amsterdam, 1081 LA Amsterdam, The NetherlandsSchool of Dentistry, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, ItalyDepartment of Bioscience Research, College of Dentistry—University of Tennessee Health Science Center, Memphis, TN 38163, USADepartment of Oral and Maxillofacial Sciences, La Sapienza University of Rome, 00161 Rome, ItalyAcademic Centre for Dentistry Amsterdam (ACTA), Department of Dental Materials, University of Amsterdam and Vrije Universiteit Amsterdam, 1081 LA Amsterdam, The NetherlandsThe present investigation evaluated the effect of the combination of different dental filling materials in Class I cavities under occlusal loading using three-dimensional finite elements analysis (FEA). Six computer-generated and restored models of a lower molar were created in the CAD software and compared according to the biomechanical response during chewing load condition. Two adhesively bonded bulk restorative materials [bulk-fill resin composite (BF) or Alkasite (Alk)] were evaluated with or without the presence of a base material below (flowable resin composite or glass ionomer cement). A food bolus was placed on the occlusal surface mimicking the compressive occlusal load (600 N) during the static linear analysis. The maximum principal stress (tensile) was calculated as stress criteria in enamel, dentin and restoration. All models showed high stresses along the enamel/restoration margin with a similar stress trend for models restored with the same upper-layer material. Stress values up to 12.04 MPa (Alk) or up to 11.12 MPa (BF) were recorded at the enamel margins. The use of flexible polymeric or ionic base material in combination with bulk-fill resin composite or Alk did not reduce the stress magnitude in dentine and enamel. Class I cavities adhesively restored with bulk-fill resin composite showed lighter stress concentration as well as Alk. Therefore, adhesively bonded Alk restoration showed a promising mechanical behavior when used with different base materials or as a bulk restoration for posterior Class I cavity.https://www.mdpi.com/2073-4360/14/8/1502dental restoration failureresin compositefinite element analysisdental materials |
| spellingShingle | Pietro Ausiello Amanda Maria de Oliveira Dal Piva Alessandro Espedito di Lauro Franklin Garcia-Godoy Luca Testarelli João Paulo Mendes Tribst Mechanical Behavior of Alkasite Posterior Restorations in Comparison to Polymeric Materials: A 3D-FEA Study Polymers dental restoration failure resin composite finite element analysis dental materials |
| title | Mechanical Behavior of Alkasite Posterior Restorations in Comparison to Polymeric Materials: A 3D-FEA Study |
| title_full | Mechanical Behavior of Alkasite Posterior Restorations in Comparison to Polymeric Materials: A 3D-FEA Study |
| title_fullStr | Mechanical Behavior of Alkasite Posterior Restorations in Comparison to Polymeric Materials: A 3D-FEA Study |
| title_full_unstemmed | Mechanical Behavior of Alkasite Posterior Restorations in Comparison to Polymeric Materials: A 3D-FEA Study |
| title_short | Mechanical Behavior of Alkasite Posterior Restorations in Comparison to Polymeric Materials: A 3D-FEA Study |
| title_sort | mechanical behavior of alkasite posterior restorations in comparison to polymeric materials a 3d fea study |
| topic | dental restoration failure resin composite finite element analysis dental materials |
| url | https://www.mdpi.com/2073-4360/14/8/1502 |
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