Evaluation of the Fatigue Strength of a CAD-CAM Nanoceramic Resin Crown on Titanium and Zirconia-Titanium Abutments
A computer-aided design/computer-aided manufacturing (CAD/CAM) resin block material for restoration of single-implant abutments can be milled and cemented on an optimized standard titanium abutment as a cheaper solution or, alternatively, individualization of the crown–abutment connection is require...
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| Format: | Article |
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MDPI AG
2022-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/3/1365 |
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| author | Lorenzo Graiff Gianpaolo Savio Adolfo Di Fiore Stefano Rosso Roberto Meneghello Francesca Uccheddu |
| author_facet | Lorenzo Graiff Gianpaolo Savio Adolfo Di Fiore Stefano Rosso Roberto Meneghello Francesca Uccheddu |
| author_sort | Lorenzo Graiff |
| collection | DOAJ |
| description | A computer-aided design/computer-aided manufacturing (CAD/CAM) resin block material for restoration of single-implant abutments can be milled and cemented on an optimized standard titanium abutment as a cheaper solution or, alternatively, individualization of the crown–abutment connection is required to fulfill the same mechanical requirements. The aim of this study was to evaluate how different structural and geometric configurations of the abutment influence the resistance of a nano ceramic resin crown (NCRC). During the test, 30 implants with an internal conical tapered configuration were considered. Each implant received a standard titanium abutment: in group 1, NCRCs were directly bonded to the titanium abutments; in group 2, NCRCs were cemented on a customized zirconia framework and then cemented on a standardized titanium abutment. Three crowns of each group were submitted to a static load test until failure. The remaining crowns were submitted to a fatigue test protocol with a dynamic load. The static and dynamic test showed earlier failure for group 1. In group 1, complete breaking of NCRCs was observed for all samples, with an almost total titanium abutment exposition. In the static tests, group 2 showed a mode of failure that involved only the crown, which partially debonded from the zirconia abutment. Within the limitations of the present preliminary study, it was possible to conclude that the shape of the abutment mainly influences the fatigue strength compared to the static tensile strength. The results of the performed test show that NCRC bonded to the customized zirconia abutments, and presented a 75% survival rate when compared to the same material bonded directly to a standard titanium abutment. |
| first_indexed | 2024-03-10T00:13:01Z |
| format | Article |
| id | doaj.art-558385063114420aab8a396eacb1bcb0 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T00:13:01Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-558385063114420aab8a396eacb1bcb02023-11-23T15:56:24ZengMDPI AGApplied Sciences2076-34172022-01-01123136510.3390/app12031365Evaluation of the Fatigue Strength of a CAD-CAM Nanoceramic Resin Crown on Titanium and Zirconia-Titanium AbutmentsLorenzo Graiff0Gianpaolo Savio1Adolfo Di Fiore2Stefano Rosso3Roberto Meneghello4Francesca Uccheddu5Department of Neuroscience, University of Padova, 35131 Padova, ItalyDepartment of Civil Environmental and Architectural Engineering, University of Padova, 35131 Padova, ItalyDepartment of Neuroscience, Section of Prosthetic and Digital Dentistry, University of Padova, 35131 Padova, ItalyDepartment of Civil Environmental and Architectural Engineering, University of Padova, 35131 Padova, ItalyDepartment of Management and Engineering, University of Padova, 36100 Vicenza, ItalyDepartment of Industrial Engineering, University of Padova, 35131 Padova, ItalyA computer-aided design/computer-aided manufacturing (CAD/CAM) resin block material for restoration of single-implant abutments can be milled and cemented on an optimized standard titanium abutment as a cheaper solution or, alternatively, individualization of the crown–abutment connection is required to fulfill the same mechanical requirements. The aim of this study was to evaluate how different structural and geometric configurations of the abutment influence the resistance of a nano ceramic resin crown (NCRC). During the test, 30 implants with an internal conical tapered configuration were considered. Each implant received a standard titanium abutment: in group 1, NCRCs were directly bonded to the titanium abutments; in group 2, NCRCs were cemented on a customized zirconia framework and then cemented on a standardized titanium abutment. Three crowns of each group were submitted to a static load test until failure. The remaining crowns were submitted to a fatigue test protocol with a dynamic load. The static and dynamic test showed earlier failure for group 1. In group 1, complete breaking of NCRCs was observed for all samples, with an almost total titanium abutment exposition. In the static tests, group 2 showed a mode of failure that involved only the crown, which partially debonded from the zirconia abutment. Within the limitations of the present preliminary study, it was possible to conclude that the shape of the abutment mainly influences the fatigue strength compared to the static tensile strength. The results of the performed test show that NCRC bonded to the customized zirconia abutments, and presented a 75% survival rate when compared to the same material bonded directly to a standard titanium abutment.https://www.mdpi.com/2076-3417/12/3/1365CAD-CAMNCRCfatigue testpatient specific design |
| spellingShingle | Lorenzo Graiff Gianpaolo Savio Adolfo Di Fiore Stefano Rosso Roberto Meneghello Francesca Uccheddu Evaluation of the Fatigue Strength of a CAD-CAM Nanoceramic Resin Crown on Titanium and Zirconia-Titanium Abutments Applied Sciences CAD-CAM NCRC fatigue test patient specific design |
| title | Evaluation of the Fatigue Strength of a CAD-CAM Nanoceramic Resin Crown on Titanium and Zirconia-Titanium Abutments |
| title_full | Evaluation of the Fatigue Strength of a CAD-CAM Nanoceramic Resin Crown on Titanium and Zirconia-Titanium Abutments |
| title_fullStr | Evaluation of the Fatigue Strength of a CAD-CAM Nanoceramic Resin Crown on Titanium and Zirconia-Titanium Abutments |
| title_full_unstemmed | Evaluation of the Fatigue Strength of a CAD-CAM Nanoceramic Resin Crown on Titanium and Zirconia-Titanium Abutments |
| title_short | Evaluation of the Fatigue Strength of a CAD-CAM Nanoceramic Resin Crown on Titanium and Zirconia-Titanium Abutments |
| title_sort | evaluation of the fatigue strength of a cad cam nanoceramic resin crown on titanium and zirconia titanium abutments |
| topic | CAD-CAM NCRC fatigue test patient specific design |
| url | https://www.mdpi.com/2076-3417/12/3/1365 |
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