Biomechanical properties of polymer-infiltrated ceramic crowns on one-piece zirconia implants after long-term chewing simulation
Abstract Background Implant and superstructure provide a complex system, which has to withstand oral conditions. Concerning the brittleness of many ceramics, fractures are a greatly feared issue. Therefore, polymer-infiltrated ceramic networks (PICNs) were developed. Because of its high elastic modu...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-05-01
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| Series: | International Journal of Implant Dentistry |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s40729-018-0127-5 |
| _version_ | 1818476543798673408 |
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| author | Pia Baumgart Holger Kirsten Rainer Haak Constanze Olms |
| author_facet | Pia Baumgart Holger Kirsten Rainer Haak Constanze Olms |
| author_sort | Pia Baumgart |
| collection | DOAJ |
| description | Abstract Background Implant and superstructure provide a complex system, which has to withstand oral conditions. Concerning the brittleness of many ceramics, fractures are a greatly feared issue. Therefore, polymer-infiltrated ceramic networks (PICNs) were developed. Because of its high elastic modulus, the PICN crown on a one-piece zirconia implant might absorb forces to prevent the system from fracturing in order to sustain oral forces. Recommendations for the material of superstructure on zirconia implants are lacking, and only one study investigates PICN crowns on these types of implants. Accordingly, this study aimed to examine PICN crowns on one-piece zirconia implants regarding bond strength and surface wear after long-term chewing simulation (CS). Methods Twenty-five hybrid ceramic crowns (Vita Enamic, Vita Zahnfabrik) were produced using computer-aided design/computer-aided manufacturing (CAD/CAM) technology and adhesively bonded (RelyX™ Ultimate, 3M ESPE) to zirconia implants. Twenty of the specimens underwent simultaneous mechanical loading and thermocycling simulating a 5-year clinical situation (SD Mechatronik GmbH). Wear depth and wear volume, based on X-ray micro-computed tomography volume scans (Skyscan 1172-100-50, Bruker) before and after CS, were evaluated. All crowns were removed from the implants using a universal testing machine (Z010, Zwick GmbH&Co.KG). Subsequently, luting agent was light microscopically localized (Stemi 2000-C, Zeiss). With a scanning electron microscope (SEM, Phenom™ G2 pro, Phenom World), the area of abrasion was assessed. Results 1.After CS, none of the tested crowns were fractured or loosened.2.The maximum vertical wear after CS was M = 0.31 ± 0.04 mm (mean ± standard deviation), and the surface wear was M = 0.74 ± 0.23 mm3.3.The pull-off tests revealed a 1.8 times higher bond strength of the control group compared to the experimental group (t(23) = 8.69, p < 0.001).4.Luting agent was mostly located in the crowns, not on the implants.5.The area of abrasion showed avulsion and a rough surface. Conclusions PICN on one-piece zirconia implants showed high bond strength and high wear after CS. |
| first_indexed | 2024-12-10T09:27:06Z |
| format | Article |
| id | doaj.art-6883825ee3144526b8a2f68e07e48c24 |
| institution | Directory Open Access Journal |
| issn | 2198-4034 |
| language | English |
| last_indexed | 2024-12-10T09:27:06Z |
| publishDate | 2018-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Implant Dentistry |
| spelling | doaj.art-6883825ee3144526b8a2f68e07e48c242022-12-22T01:54:29ZengSpringerOpenInternational Journal of Implant Dentistry2198-40342018-05-01411710.1186/s40729-018-0127-5Biomechanical properties of polymer-infiltrated ceramic crowns on one-piece zirconia implants after long-term chewing simulationPia Baumgart0Holger Kirsten1Rainer Haak2Constanze Olms3Department of Dental Prosthodontics and Materials Science, University of LeipzigInstitute for Medical Informatics, Statistics, and Epidemiology (IMISE)Department of Cariology, Endodontology and Periodontology, University of LeipzigDepartment of Dental Prosthodontics and Materials Science, University of LeipzigAbstract Background Implant and superstructure provide a complex system, which has to withstand oral conditions. Concerning the brittleness of many ceramics, fractures are a greatly feared issue. Therefore, polymer-infiltrated ceramic networks (PICNs) were developed. Because of its high elastic modulus, the PICN crown on a one-piece zirconia implant might absorb forces to prevent the system from fracturing in order to sustain oral forces. Recommendations for the material of superstructure on zirconia implants are lacking, and only one study investigates PICN crowns on these types of implants. Accordingly, this study aimed to examine PICN crowns on one-piece zirconia implants regarding bond strength and surface wear after long-term chewing simulation (CS). Methods Twenty-five hybrid ceramic crowns (Vita Enamic, Vita Zahnfabrik) were produced using computer-aided design/computer-aided manufacturing (CAD/CAM) technology and adhesively bonded (RelyX™ Ultimate, 3M ESPE) to zirconia implants. Twenty of the specimens underwent simultaneous mechanical loading and thermocycling simulating a 5-year clinical situation (SD Mechatronik GmbH). Wear depth and wear volume, based on X-ray micro-computed tomography volume scans (Skyscan 1172-100-50, Bruker) before and after CS, were evaluated. All crowns were removed from the implants using a universal testing machine (Z010, Zwick GmbH&Co.KG). Subsequently, luting agent was light microscopically localized (Stemi 2000-C, Zeiss). With a scanning electron microscope (SEM, Phenom™ G2 pro, Phenom World), the area of abrasion was assessed. Results 1.After CS, none of the tested crowns were fractured or loosened.2.The maximum vertical wear after CS was M = 0.31 ± 0.04 mm (mean ± standard deviation), and the surface wear was M = 0.74 ± 0.23 mm3.3.The pull-off tests revealed a 1.8 times higher bond strength of the control group compared to the experimental group (t(23) = 8.69, p < 0.001).4.Luting agent was mostly located in the crowns, not on the implants.5.The area of abrasion showed avulsion and a rough surface. Conclusions PICN on one-piece zirconia implants showed high bond strength and high wear after CS.http://link.springer.com/article/10.1186/s40729-018-0127-5Hybrid ceramicPolymer-infiltrated ceramic networkPICNImplantOne-pieceZirconia |
| spellingShingle | Pia Baumgart Holger Kirsten Rainer Haak Constanze Olms Biomechanical properties of polymer-infiltrated ceramic crowns on one-piece zirconia implants after long-term chewing simulation International Journal of Implant Dentistry Hybrid ceramic Polymer-infiltrated ceramic network PICN Implant One-piece Zirconia |
| title | Biomechanical properties of polymer-infiltrated ceramic crowns on one-piece zirconia implants after long-term chewing simulation |
| title_full | Biomechanical properties of polymer-infiltrated ceramic crowns on one-piece zirconia implants after long-term chewing simulation |
| title_fullStr | Biomechanical properties of polymer-infiltrated ceramic crowns on one-piece zirconia implants after long-term chewing simulation |
| title_full_unstemmed | Biomechanical properties of polymer-infiltrated ceramic crowns on one-piece zirconia implants after long-term chewing simulation |
| title_short | Biomechanical properties of polymer-infiltrated ceramic crowns on one-piece zirconia implants after long-term chewing simulation |
| title_sort | biomechanical properties of polymer infiltrated ceramic crowns on one piece zirconia implants after long term chewing simulation |
| topic | Hybrid ceramic Polymer-infiltrated ceramic network PICN Implant One-piece Zirconia |
| url | http://link.springer.com/article/10.1186/s40729-018-0127-5 |
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