Comparison of the Fracture Strength of Endodontically Treated Teeth Restored with the Biomimetic Method and Three Types of Post-and-Core Systems
Background and purpose: In endodontically treated teeth, the use of post-cores and subsequent full-coverage crown restorations is a commonly proposed treatment modality. This study aimed to compare the fracture resistance of restored teeth using four different methods: biomimetic approach, fiber pos...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Mazandaran University of Medical Sciences
2025-08-01
|
| Series: | Journal of Mazandaran University of Medical Sciences |
| Subjects: | |
| Online Access: | http://jmums.mazums.ac.ir/article-1-21732-en.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849233494860890112 |
|---|---|
| author | Kosar Rezaei Maryam Rezaei-Dastjerdi Melika Mollaei Hemmat Gholinia Fahimeh Hamedirad |
| author_facet | Kosar Rezaei Maryam Rezaei-Dastjerdi Melika Mollaei Hemmat Gholinia Fahimeh Hamedirad |
| author_sort | Kosar Rezaei |
| collection | DOAJ |
| description | Background and purpose: In endodontically treated teeth, the use of post-cores and subsequent full-coverage crown restorations is a commonly proposed treatment modality. This study aimed to compare the fracture resistance of restored teeth using four different methods: biomimetic approach, fiber post, nickel-chromium (NiCr) cast post and core, and non-precious gold (NPG) cast post and core.
Materials and methods: In this experimental study, 40 maxillary single-rooted second premolars were selected and decoronated 2 mm above the cementoenamel junction (CEJ). Standard root canal treatments were performed, and the teeth were randomly divided into four groups. In the NiCr, NPG, and fiber post groups, metal crowns were fabricated and cemented using glass-ionomer cement. Biomimetic specimens were restored using indirectly applied modified resin-based fiber. A load at a 45 angle was applied to all specimens using a universal testing machine, and the fracture resistance of the teeth was measured. Fracture patterns were also assessed. Fracture data were analyzed using one-way analysis of variance (ANOVA), and pairwise comparisons were conducted using Tukey’s post hoc test. Failure patterns were analyzed using the Chi-square test.
Results: The highest fracture resistance values were observed in teeth restored using NPG posts (4622.37 N), followed by fiber posts (4534.22 N), NiCr posts (3794.45 N), and the biomimetic method (2329.58 N), respectively. The fracture resistance of teeth restored with NPG (P< 0.001), fiber (P< 0.001), and NiCr (P=0.025) posts was significantly higher than that of teeth restored using the biomimetic method. The highest incidence of unrestorable fractures was found in the fiber post group (80.0%), followed by NiCr (70.0%), NPG (50.0%), and the biomimetic method (50.0%).
Conclusion: Using the biomimetic method for restoring endodontically treated teeth resulted in lower fracture resistance than the studied post-core systems. However, the frequency of restorable fractures with this method was higher than that observed in the other methods. |
| format | Article |
| id | doaj-art-a82179f340994d5ea8924cbacd673fbc |
| institution | Kabale University |
| issn | 1735-9260 1735-9279 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Mazandaran University of Medical Sciences |
| record_format | Article |
| series | Journal of Mazandaran University of Medical Sciences |
| spelling | doaj-art-a82179f340994d5ea8924cbacd673fbc2025-08-20T05:26:28ZengMazandaran University of Medical SciencesJournal of Mazandaran University of Medical Sciences1735-92601735-92792025-08-0135247108116Comparison of the Fracture Strength of Endodontically Treated Teeth Restored with the Biomimetic Method and Three Types of Post-and-Core SystemsKosar Rezaei0Maryam Rezaei-Dastjerdi1Melika Mollaei2Hemmat Gholinia3Fahimeh Hamedirad4 Assistant Professor, Department of Prosthodontics, Dental Research Center, Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran Assistant Professor, Department of Prosthodontics, Dental Research Center, Faculty of Dentistry, Babol University of Medical Sciences, Sari, Iran Dental Student, Student Research Committee, Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran Assistant Professor, Social Determinants of Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran Assistant Professor, Department of Prosthodontics, Dental Research Center, Faculty of Dentistry, Babol University of Medical Sciences, Sari, Iran Background and purpose: In endodontically treated teeth, the use of post-cores and subsequent full-coverage crown restorations is a commonly proposed treatment modality. This study aimed to compare the fracture resistance of restored teeth using four different methods: biomimetic approach, fiber post, nickel-chromium (NiCr) cast post and core, and non-precious gold (NPG) cast post and core. Materials and methods: In this experimental study, 40 maxillary single-rooted second premolars were selected and decoronated 2 mm above the cementoenamel junction (CEJ). Standard root canal treatments were performed, and the teeth were randomly divided into four groups. In the NiCr, NPG, and fiber post groups, metal crowns were fabricated and cemented using glass-ionomer cement. Biomimetic specimens were restored using indirectly applied modified resin-based fiber. A load at a 45 angle was applied to all specimens using a universal testing machine, and the fracture resistance of the teeth was measured. Fracture patterns were also assessed. Fracture data were analyzed using one-way analysis of variance (ANOVA), and pairwise comparisons were conducted using Tukey’s post hoc test. Failure patterns were analyzed using the Chi-square test. Results: The highest fracture resistance values were observed in teeth restored using NPG posts (4622.37 N), followed by fiber posts (4534.22 N), NiCr posts (3794.45 N), and the biomimetic method (2329.58 N), respectively. The fracture resistance of teeth restored with NPG (P< 0.001), fiber (P< 0.001), and NiCr (P=0.025) posts was significantly higher than that of teeth restored using the biomimetic method. The highest incidence of unrestorable fractures was found in the fiber post group (80.0%), followed by NiCr (70.0%), NPG (50.0%), and the biomimetic method (50.0%). Conclusion: Using the biomimetic method for restoring endodontically treated teeth resulted in lower fracture resistance than the studied post-core systems. However, the frequency of restorable fractures with this method was higher than that observed in the other methods.http://jmums.mazums.ac.ir/article-1-21732-en.pdfpost-corebiomimetic dentistryfracture resistanceendodontic treatment |
| spellingShingle | Kosar Rezaei Maryam Rezaei-Dastjerdi Melika Mollaei Hemmat Gholinia Fahimeh Hamedirad Comparison of the Fracture Strength of Endodontically Treated Teeth Restored with the Biomimetic Method and Three Types of Post-and-Core Systems Journal of Mazandaran University of Medical Sciences post-core biomimetic dentistry fracture resistance endodontic treatment |
| title | Comparison of the Fracture Strength of Endodontically Treated Teeth Restored with the Biomimetic Method and Three Types of Post-and-Core Systems |
| title_full | Comparison of the Fracture Strength of Endodontically Treated Teeth Restored with the Biomimetic Method and Three Types of Post-and-Core Systems |
| title_fullStr | Comparison of the Fracture Strength of Endodontically Treated Teeth Restored with the Biomimetic Method and Three Types of Post-and-Core Systems |
| title_full_unstemmed | Comparison of the Fracture Strength of Endodontically Treated Teeth Restored with the Biomimetic Method and Three Types of Post-and-Core Systems |
| title_short | Comparison of the Fracture Strength of Endodontically Treated Teeth Restored with the Biomimetic Method and Three Types of Post-and-Core Systems |
| title_sort | comparison of the fracture strength of endodontically treated teeth restored with the biomimetic method and three types of post and core systems |
| topic | post-core biomimetic dentistry fracture resistance endodontic treatment |
| url | http://jmums.mazums.ac.ir/article-1-21732-en.pdf |
| work_keys_str_mv | AT kosarrezaei comparisonofthefracturestrengthofendodonticallytreatedteethrestoredwiththebiomimeticmethodandthreetypesofpostandcoresystems AT maryamrezaeidastjerdi comparisonofthefracturestrengthofendodonticallytreatedteethrestoredwiththebiomimeticmethodandthreetypesofpostandcoresystems AT melikamollaei comparisonofthefracturestrengthofendodonticallytreatedteethrestoredwiththebiomimeticmethodandthreetypesofpostandcoresystems AT hemmatgholinia comparisonofthefracturestrengthofendodonticallytreatedteethrestoredwiththebiomimeticmethodandthreetypesofpostandcoresystems AT fahimehhamedirad comparisonofthefracturestrengthofendodonticallytreatedteethrestoredwiththebiomimeticmethodandthreetypesofpostandcoresystems |