Fracture Resistance and Stress Distribution Pattern of Different Posts-Core Systems in Immature Teeth: An In Vitro Study and 3D Finite Element Analysis
Introduction. Restoration of immature teeth with open apices and thin dentinal walls with conventional post systems remains a challenge. The purpose of this study was to evaluate the fracture resistance of simulated immature teeth restored with different intraradicular posts and assess their stress...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
|
| Series: | International Journal of Dentistry |
| Online Access: | http://dx.doi.org/10.1155/2022/2610812 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850179122348687360 |
|---|---|
| author | Shahnaz Khadar Kishor Sapkale Pravinkumar G. Patil Sayed Abrar Manoj Ramugade Febel Huda |
| author_facet | Shahnaz Khadar Kishor Sapkale Pravinkumar G. Patil Sayed Abrar Manoj Ramugade Febel Huda |
| author_sort | Shahnaz Khadar |
| collection | DOAJ |
| description | Introduction. Restoration of immature teeth with open apices and thin dentinal walls with conventional post systems remains a challenge. The purpose of this study was to evaluate the fracture resistance of simulated immature teeth restored with different intraradicular posts and assess their stress distribution pattern using 3D Finite Element Analysis (FEA). Methods. Fracture strength testing using universal testing machine was carried out in simulated immature teeth restored with different intraradicular posts grouped as follows: Group A: teeth not restored with posts served as control group; Group B: Cast metal post (CMP); Group C: Customized Composite Post (CCP); Group D: Fiber post (FP). Four 3D FEA models of the above groups were created using CATIATM software and analyzed for stress distribution using ANSYSTM. The results of fracture strength testing and FEA were correlated. Multiple group comparisons were analyzed by one-way ANOVA followed by Tukey HSD post hoc test. Results. The CMP exhibited highest fracture resistance (336.43 N) but resulted in root fractures. The CCP exhibited lower fracture resistance (240.90 N) and favorable stress distribution as compared to CMP. The FP and control group exhibited lower fracture resistance values of 182.69 N and 130.46 N, respectively. The results of 3D FEA demonstrated higher stress concentration in model comprising metallic post and core. Conclusions. Teeth restored with cast metal posts and cores exhibited maximum fracture resistance followed by the customized composite posts, the fiber posts, and the control group. The cast metal posts indicated higher von Mises stresses concentrated in the radicular region; however, the customized composite posts, the fiber posts, and the control group demonstrated stress concentration in the coronal region. |
| format | Article |
| id | doaj-art-be84e8228e5f42cfb84fc2e4a4eddb9d |
| institution | OA Journals |
| issn | 1687-8736 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Dentistry |
| spelling | doaj-art-be84e8228e5f42cfb84fc2e4a4eddb9d2025-08-20T02:18:35ZengWileyInternational Journal of Dentistry1687-87362022-01-01202210.1155/2022/2610812Fracture Resistance and Stress Distribution Pattern of Different Posts-Core Systems in Immature Teeth: An In Vitro Study and 3D Finite Element AnalysisShahnaz Khadar0Kishor Sapkale1Pravinkumar G. Patil2Sayed Abrar3Manoj Ramugade4Febel Huda5Department of Conservative Dentistry and EndodonticsDepartment of Conservative Dentistry and EndodonticsDepartment of ProsthodonticsDepartment of Conservative Dentistry and EndodonticsDepartment of Conservative Dentistry and EndodonticsCochin Implant CentreIntroduction. Restoration of immature teeth with open apices and thin dentinal walls with conventional post systems remains a challenge. The purpose of this study was to evaluate the fracture resistance of simulated immature teeth restored with different intraradicular posts and assess their stress distribution pattern using 3D Finite Element Analysis (FEA). Methods. Fracture strength testing using universal testing machine was carried out in simulated immature teeth restored with different intraradicular posts grouped as follows: Group A: teeth not restored with posts served as control group; Group B: Cast metal post (CMP); Group C: Customized Composite Post (CCP); Group D: Fiber post (FP). Four 3D FEA models of the above groups were created using CATIATM software and analyzed for stress distribution using ANSYSTM. The results of fracture strength testing and FEA were correlated. Multiple group comparisons were analyzed by one-way ANOVA followed by Tukey HSD post hoc test. Results. The CMP exhibited highest fracture resistance (336.43 N) but resulted in root fractures. The CCP exhibited lower fracture resistance (240.90 N) and favorable stress distribution as compared to CMP. The FP and control group exhibited lower fracture resistance values of 182.69 N and 130.46 N, respectively. The results of 3D FEA demonstrated higher stress concentration in model comprising metallic post and core. Conclusions. Teeth restored with cast metal posts and cores exhibited maximum fracture resistance followed by the customized composite posts, the fiber posts, and the control group. The cast metal posts indicated higher von Mises stresses concentrated in the radicular region; however, the customized composite posts, the fiber posts, and the control group demonstrated stress concentration in the coronal region.http://dx.doi.org/10.1155/2022/2610812 |
| spellingShingle | Shahnaz Khadar Kishor Sapkale Pravinkumar G. Patil Sayed Abrar Manoj Ramugade Febel Huda Fracture Resistance and Stress Distribution Pattern of Different Posts-Core Systems in Immature Teeth: An In Vitro Study and 3D Finite Element Analysis International Journal of Dentistry |
| title | Fracture Resistance and Stress Distribution Pattern of Different Posts-Core Systems in Immature Teeth: An In Vitro Study and 3D Finite Element Analysis |
| title_full | Fracture Resistance and Stress Distribution Pattern of Different Posts-Core Systems in Immature Teeth: An In Vitro Study and 3D Finite Element Analysis |
| title_fullStr | Fracture Resistance and Stress Distribution Pattern of Different Posts-Core Systems in Immature Teeth: An In Vitro Study and 3D Finite Element Analysis |
| title_full_unstemmed | Fracture Resistance and Stress Distribution Pattern of Different Posts-Core Systems in Immature Teeth: An In Vitro Study and 3D Finite Element Analysis |
| title_short | Fracture Resistance and Stress Distribution Pattern of Different Posts-Core Systems in Immature Teeth: An In Vitro Study and 3D Finite Element Analysis |
| title_sort | fracture resistance and stress distribution pattern of different posts core systems in immature teeth an in vitro study and 3d finite element analysis |
| url | http://dx.doi.org/10.1155/2022/2610812 |
| work_keys_str_mv | AT shahnazkhadar fractureresistanceandstressdistributionpatternofdifferentpostscoresystemsinimmatureteethaninvitrostudyand3dfiniteelementanalysis AT kishorsapkale fractureresistanceandstressdistributionpatternofdifferentpostscoresystemsinimmatureteethaninvitrostudyand3dfiniteelementanalysis AT pravinkumargpatil fractureresistanceandstressdistributionpatternofdifferentpostscoresystemsinimmatureteethaninvitrostudyand3dfiniteelementanalysis AT sayedabrar fractureresistanceandstressdistributionpatternofdifferentpostscoresystemsinimmatureteethaninvitrostudyand3dfiniteelementanalysis AT manojramugade fractureresistanceandstressdistributionpatternofdifferentpostscoresystemsinimmatureteethaninvitrostudyand3dfiniteelementanalysis AT febelhuda fractureresistanceandstressdistributionpatternofdifferentpostscoresystemsinimmatureteethaninvitrostudyand3dfiniteelementanalysis |