In vitro fracture resistance of implant-supported terminal zirconia cantilevered frameworks
Purpose: This study aims to investigate the in vitro fracture loads of three different terminal cantilever forms of implant-supported zirconia frameworks.Materials and Methods: A total of 30 implant-supported zirconia frameworks (Aconia, China) were CAD/ CAM-fabricated and divided into three groups,...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Istanbul University
2025-01-01
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| Series: | European Oral Research |
| Subjects: | |
| Online Access: | https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/BA7AE3A58C0343ABAF66974B1CDBAC4A |
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| Summary: | Purpose: This study aims to investigate the in vitro fracture loads of three different terminal cantilever forms of implant-supported zirconia frameworks.Materials and Methods: A total of 30 implant-supported zirconia frameworks (Aconia, China) were CAD/ CAM-fabricated and divided into three groups, each with a distal abutment cantilever form design of 5mm: Group A had square cantilevers, Group B had oval cantilevers, and Group C had oval-square cantilevers. Universal testing machine was used to apply vertical loads to the samples, and the fracture loads were recorded. Variance analysis and Tukey's post-hoc tests were applied for statistical evaluation.Results: There was no significant difference between the mean fracture loads of Group B (587.8±112.2 N) and Group C (591.3 ±81.3 N), but both of these groups exhibited significantly lower fracture loads compared to Group A (893.8±145 N, p<0.001 for each).Conclusion: Within the scope of this experimental study, it can be concluded that implantsupported terminal square shaped cantilever zirconia frameworks, each measuring 5 mm from the distal abutment, are more likely to exhibit greater resistance to vertical loads compared to their oval and oval-square counterparts. |
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| ISSN: | 2651-2823 |