Finite Element Study of PEEK Materials Applied in Post-Retained Restorations
Background: This study aimed to investigate the biomechanical behaviors of polyether ether ketone (PEEK) and traditional materials (titanium and fiber) when used to restore tooth defects in the form of prefabricated post or customized post via computational modelling. Methods: First, the prototype o...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-08-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/14/16/3422 |
| _version_ | 1797408241026596864 |
|---|---|
| author | Hao Yu Zhihong Feng Ling Wang Senay Mihcin Jianfeng Kang Shizhu Bai Yimin Zhao |
| author_facet | Hao Yu Zhihong Feng Ling Wang Senay Mihcin Jianfeng Kang Shizhu Bai Yimin Zhao |
| author_sort | Hao Yu |
| collection | DOAJ |
| description | Background: This study aimed to investigate the biomechanical behaviors of polyether ether ketone (PEEK) and traditional materials (titanium and fiber) when used to restore tooth defects in the form of prefabricated post or customized post via computational modelling. Methods: First, the prototype of natural tooth, and the prototypes of prefabricated post and customized post were established, respectively, whilst the residual root was restored with dentin ferrule using reverse engineering methods. Then, the stress and strain of CFR-PEEK (PEEK reinforced by 30% carbon fiber) and pure PEEK (PEEK without any reprocessing) post were compared with those made in traditional materials using the three-dimensional finite element method. Results: From the stress point of view, compared with metal and fiber posts, CFR-PEEK and pure PEEK prefabricated post both demonstrated reduced post-core interface stress, post stress, post-root cement stress and root cement stress; moreover, CFR-PEEK and pure PEEK customized post demonstrated reduced post stress, post-root cement stress and root cement stress, while the strain of CFR-PEEK post was the closest to that of dentin. Conclusions: Compared with the traditional posts, both the CFR-PEEK and pure PEEK posts could reduce the risk of debonding and vertical root fracture, whether they were used as prefabricated posts or customized posts, but the biomechanical behavior of carbon fiber-reinforced CFR-PEEK restorations was the closest to dentin, no matter if they were used as prefabricated post or customized post. Therefore, the CFR-PEEK post could be more suitable to restore massive tooth defects. Pure PEEK needs filler reinforcement to be used for post-retained restoration. |
| first_indexed | 2024-03-09T03:55:34Z |
| format | Article |
| id | doaj.art-68e78b76883a44eb9d5705e015a3e99c |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T03:55:34Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-68e78b76883a44eb9d5705e015a3e99c2023-12-03T14:20:49ZengMDPI AGPolymers2073-43602022-08-011416342210.3390/polym14163422Finite Element Study of PEEK Materials Applied in Post-Retained RestorationsHao Yu0Zhihong Feng1Ling Wang2Senay Mihcin3Jianfeng Kang4Shizhu Bai5Yimin Zhao6State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Digital Dentistry Center, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, ChinaState Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, ChinaState Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710032, ChinaDepartment of Mechanical Engineering, Izmir Institute of Technology, Izmir 35433, TurkeyJihua Laboratory, Foshan 528000, ChinaState Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Digital Dentistry Center, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, ChinaState Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Digital Dentistry Center, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, ChinaBackground: This study aimed to investigate the biomechanical behaviors of polyether ether ketone (PEEK) and traditional materials (titanium and fiber) when used to restore tooth defects in the form of prefabricated post or customized post via computational modelling. Methods: First, the prototype of natural tooth, and the prototypes of prefabricated post and customized post were established, respectively, whilst the residual root was restored with dentin ferrule using reverse engineering methods. Then, the stress and strain of CFR-PEEK (PEEK reinforced by 30% carbon fiber) and pure PEEK (PEEK without any reprocessing) post were compared with those made in traditional materials using the three-dimensional finite element method. Results: From the stress point of view, compared with metal and fiber posts, CFR-PEEK and pure PEEK prefabricated post both demonstrated reduced post-core interface stress, post stress, post-root cement stress and root cement stress; moreover, CFR-PEEK and pure PEEK customized post demonstrated reduced post stress, post-root cement stress and root cement stress, while the strain of CFR-PEEK post was the closest to that of dentin. Conclusions: Compared with the traditional posts, both the CFR-PEEK and pure PEEK posts could reduce the risk of debonding and vertical root fracture, whether they were used as prefabricated posts or customized posts, but the biomechanical behavior of carbon fiber-reinforced CFR-PEEK restorations was the closest to dentin, no matter if they were used as prefabricated post or customized post. Therefore, the CFR-PEEK post could be more suitable to restore massive tooth defects. Pure PEEK needs filler reinforcement to be used for post-retained restoration.https://www.mdpi.com/2073-4360/14/16/3422polyetheretherketonefinite element analysispost-retained restorationbiomechanical behaviors |
| spellingShingle | Hao Yu Zhihong Feng Ling Wang Senay Mihcin Jianfeng Kang Shizhu Bai Yimin Zhao Finite Element Study of PEEK Materials Applied in Post-Retained Restorations Polymers polyetheretherketone finite element analysis post-retained restoration biomechanical behaviors |
| title | Finite Element Study of PEEK Materials Applied in Post-Retained Restorations |
| title_full | Finite Element Study of PEEK Materials Applied in Post-Retained Restorations |
| title_fullStr | Finite Element Study of PEEK Materials Applied in Post-Retained Restorations |
| title_full_unstemmed | Finite Element Study of PEEK Materials Applied in Post-Retained Restorations |
| title_short | Finite Element Study of PEEK Materials Applied in Post-Retained Restorations |
| title_sort | finite element study of peek materials applied in post retained restorations |
| topic | polyetheretherketone finite element analysis post-retained restoration biomechanical behaviors |
| url | https://www.mdpi.com/2073-4360/14/16/3422 |
| work_keys_str_mv | AT haoyu finiteelementstudyofpeekmaterialsappliedinpostretainedrestorations AT zhihongfeng finiteelementstudyofpeekmaterialsappliedinpostretainedrestorations AT lingwang finiteelementstudyofpeekmaterialsappliedinpostretainedrestorations AT senaymihcin finiteelementstudyofpeekmaterialsappliedinpostretainedrestorations AT jianfengkang finiteelementstudyofpeekmaterialsappliedinpostretainedrestorations AT shizhubai finiteelementstudyofpeekmaterialsappliedinpostretainedrestorations AT yiminzhao finiteelementstudyofpeekmaterialsappliedinpostretainedrestorations |