Retention Forces of Implant-Supported Single Crowns and Fixed Dental Prostheses after Cementation: An In-Vitro Study
The aim of this in vitro study was to investigate three different cements for their suitability to provide semi-permanent cementation, and to compare the retention forces of implant-supported single crowns (SC) and three-unit fixed dental prostheses (FDP) luted with these cements. Twenty-four methac...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Oral |
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| Online Access: | https://www.mdpi.com/2673-6373/2/1/5 |
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| author | Shaza Bishti Jousef Siouri Stefan Wolfart Taskin Tuna |
| author_facet | Shaza Bishti Jousef Siouri Stefan Wolfart Taskin Tuna |
| author_sort | Shaza Bishti |
| collection | DOAJ |
| description | The aim of this in vitro study was to investigate three different cements for their suitability to provide semi-permanent cementation, and to compare the retention forces of implant-supported single crowns (SC) and three-unit fixed dental prostheses (FDP) luted with these cements. Twenty-four methacrylate models were supplied with three implants/abutments each to simulate the condition of SCs/FDPs. Cobalt-chromium frameworks were fabricated, sandblasted (Al<sub>2</sub>O<sub>3</sub>/50 µm/0.2 MPa) then cemented with glass-ionomer (KTC), polycarboxylate (DUR) or self-adhesive resin cement (RXU). Specimens were stored in a saline-solution (NaCl/37 °C/24 h) or subjected to thermocycling. A universal testing machine and a pull-off device were used to remove the copings. The multi-factor ANOVA showed that the retention force differed significantly among all cements for the SCs after NaCl storage (<i>p</i> < 0.05). Mean retention forces (in Newtons) after NaCl storage were (SCs/FDPs): KTC 170/352, DUR 409/406, RXU 265/426, and after thermocycling (SCs/FDPs): KTC 156/262, DUR 306/380, RXU 494/508. FDPs showed higher retention values in comparison to SCs. For SCs, artificial aging with thermocycling resulted in a significant retention increase for RXU, whereas the retention of KTC and DUR was decreased. Glass ionomer can be used as a semi-permanent cement for both SCs and FDPs. Polycarboxylate cement is considered semi-permanent after one year of aging. |
| first_indexed | 2024-03-09T13:03:35Z |
| format | Article |
| id | doaj.art-3793305194264f9b940e9293d379eac0 |
| institution | Directory Open Access Journal |
| issn | 2673-6373 |
| language | English |
| last_indexed | 2024-03-09T13:03:35Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Oral |
| spelling | doaj.art-3793305194264f9b940e9293d379eac02023-11-30T21:51:32ZengMDPI AGOral2673-63732022-02-0121294010.3390/oral2010005Retention Forces of Implant-Supported Single Crowns and Fixed Dental Prostheses after Cementation: An In-Vitro StudyShaza Bishti0Jousef Siouri1Stefan Wolfart2Taskin Tuna3Department of Prosthodontics and Biomaterials, Medical Faculty, RWTH Aachen, University Aachen, 52074 Aachen, GermanyDepartment of Prosthodontics and Biomaterials, Medical Faculty, RWTH Aachen, University Aachen, 52074 Aachen, GermanyDepartment of Prosthodontics and Biomaterials, Medical Faculty, RWTH Aachen, University Aachen, 52074 Aachen, GermanyDepartment of Prosthodontics and Biomaterials, Medical Faculty, RWTH Aachen, University Aachen, 52074 Aachen, GermanyThe aim of this in vitro study was to investigate three different cements for their suitability to provide semi-permanent cementation, and to compare the retention forces of implant-supported single crowns (SC) and three-unit fixed dental prostheses (FDP) luted with these cements. Twenty-four methacrylate models were supplied with three implants/abutments each to simulate the condition of SCs/FDPs. Cobalt-chromium frameworks were fabricated, sandblasted (Al<sub>2</sub>O<sub>3</sub>/50 µm/0.2 MPa) then cemented with glass-ionomer (KTC), polycarboxylate (DUR) or self-adhesive resin cement (RXU). Specimens were stored in a saline-solution (NaCl/37 °C/24 h) or subjected to thermocycling. A universal testing machine and a pull-off device were used to remove the copings. The multi-factor ANOVA showed that the retention force differed significantly among all cements for the SCs after NaCl storage (<i>p</i> < 0.05). Mean retention forces (in Newtons) after NaCl storage were (SCs/FDPs): KTC 170/352, DUR 409/406, RXU 265/426, and after thermocycling (SCs/FDPs): KTC 156/262, DUR 306/380, RXU 494/508. FDPs showed higher retention values in comparison to SCs. For SCs, artificial aging with thermocycling resulted in a significant retention increase for RXU, whereas the retention of KTC and DUR was decreased. Glass ionomer can be used as a semi-permanent cement for both SCs and FDPs. Polycarboxylate cement is considered semi-permanent after one year of aging.https://www.mdpi.com/2673-6373/2/1/5implant-supported restorationcementretentionfixed dental prosthesisretrievability |
| spellingShingle | Shaza Bishti Jousef Siouri Stefan Wolfart Taskin Tuna Retention Forces of Implant-Supported Single Crowns and Fixed Dental Prostheses after Cementation: An In-Vitro Study Oral implant-supported restoration cement retention fixed dental prosthesis retrievability |
| title | Retention Forces of Implant-Supported Single Crowns and Fixed Dental Prostheses after Cementation: An In-Vitro Study |
| title_full | Retention Forces of Implant-Supported Single Crowns and Fixed Dental Prostheses after Cementation: An In-Vitro Study |
| title_fullStr | Retention Forces of Implant-Supported Single Crowns and Fixed Dental Prostheses after Cementation: An In-Vitro Study |
| title_full_unstemmed | Retention Forces of Implant-Supported Single Crowns and Fixed Dental Prostheses after Cementation: An In-Vitro Study |
| title_short | Retention Forces of Implant-Supported Single Crowns and Fixed Dental Prostheses after Cementation: An In-Vitro Study |
| title_sort | retention forces of implant supported single crowns and fixed dental prostheses after cementation an in vitro study |
| topic | implant-supported restoration cement retention fixed dental prosthesis retrievability |
| url | https://www.mdpi.com/2673-6373/2/1/5 |
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