Retentive Characteristics of a New Attachment System for Hybrid Dentures
Removable implant-anchored dentures have become an established treatment concept especially for older, multimorbid patients. This study investigates the retention force (RF) of two different attachment systems. A total of 96 specimens (n = 8 for each condition) were fabricated and RF was measured un...
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| Format: | Article |
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MDPI AG
2020-08-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/15/3434 |
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| author | Christin Arnold Charlotte Stampa Ramona Schweyen Jeremias Hey Arne Boeckler |
| author_facet | Christin Arnold Charlotte Stampa Ramona Schweyen Jeremias Hey Arne Boeckler |
| author_sort | Christin Arnold |
| collection | DOAJ |
| description | Removable implant-anchored dentures have become an established treatment concept especially for older, multimorbid patients. This study investigates the retention force (RF) of two different attachment systems. A total of 96 specimens (n = 8 for each condition) were fabricated and RF was measured under different conditions: fatigue (10,000 cycles dislodging), thermal undulation (5/55 °C, 5000 cycles) and implant-angulation (0°, 5°, 10°, 15°, 20°). The Novaloc system ((N), 0° and 15° abutments, yellow matrix (Y)) was compared to the Locator system ((L), pink (P) and orange (O)). Initial RFs (8.57 ± 0.99 N (NY), 19.39 ± 8.10 N (LP), 8.8 ± 5.28 N (LO)) were reduced by ageing simulation (26% (NY), 66% (LP), 89% (LO); <i>p</i> < 0.001). After thermocycling, Novaloc’s RFs decreased by 33% (<i>p</i> < 0.001) while the Locators’ RFs increased by 34% (LP: <i>p</i> = 0.002, LO: <i>p</i> = 0.148). In contrast to LP, the RFs of Novaloc abutments and LOs predominantly showed no clinically relevant dependence on implant angulation. Ageing processes tended to result in lower RFs at higher implant angulation. Thus, the Novaloc attachment system offers an alternative to Locator attachments. It is characterized by a comparatively continuous RF-curve over the entire wearing period. Future clinical studies have to be conducted to verify the in vitro demonstrated advantages of the Novaloc system. |
| first_indexed | 2024-03-10T17:58:50Z |
| format | Article |
| id | doaj.art-9365fdff7c254e7482a6bb1ee37b8dd0 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T17:58:50Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-9365fdff7c254e7482a6bb1ee37b8dd02023-11-20T09:02:22ZengMDPI AGMaterials1996-19442020-08-011315343410.3390/ma13153434Retentive Characteristics of a New Attachment System for Hybrid DenturesChristin Arnold0Charlotte Stampa1Ramona Schweyen2Jeremias Hey3Arne Boeckler4Department of Prosthetic Dentistry, University School of Dental Medicine, Martin-Luther-University Halle-Wittenberg, Magdeburger Str. 16, 06112 Halle, GermanyDepartment of Prosthetic Dentistry, University School of Dental Medicine, Martin-Luther-University Halle-Wittenberg, Magdeburger Str. 16, 06112 Halle, GermanyDepartment of Prosthetic Dentistry, University School of Dental Medicine, Martin-Luther-University Halle-Wittenberg, Magdeburger Str. 16, 06112 Halle, GermanyDepartment of Prosthetic Dentistry, University School of Dental Medicine, Martin-Luther-University Halle-Wittenberg, Magdeburger Str. 16, 06112 Halle, GermanyDepartment of Prosthetic Dentistry, University School of Dental Medicine, Martin-Luther-University Halle-Wittenberg, Magdeburger Str. 16, 06112 Halle, GermanyRemovable implant-anchored dentures have become an established treatment concept especially for older, multimorbid patients. This study investigates the retention force (RF) of two different attachment systems. A total of 96 specimens (n = 8 for each condition) were fabricated and RF was measured under different conditions: fatigue (10,000 cycles dislodging), thermal undulation (5/55 °C, 5000 cycles) and implant-angulation (0°, 5°, 10°, 15°, 20°). The Novaloc system ((N), 0° and 15° abutments, yellow matrix (Y)) was compared to the Locator system ((L), pink (P) and orange (O)). Initial RFs (8.57 ± 0.99 N (NY), 19.39 ± 8.10 N (LP), 8.8 ± 5.28 N (LO)) were reduced by ageing simulation (26% (NY), 66% (LP), 89% (LO); <i>p</i> < 0.001). After thermocycling, Novaloc’s RFs decreased by 33% (<i>p</i> < 0.001) while the Locators’ RFs increased by 34% (LP: <i>p</i> = 0.002, LO: <i>p</i> = 0.148). In contrast to LP, the RFs of Novaloc abutments and LOs predominantly showed no clinically relevant dependence on implant angulation. Ageing processes tended to result in lower RFs at higher implant angulation. Thus, the Novaloc attachment system offers an alternative to Locator attachments. It is characterized by a comparatively continuous RF-curve over the entire wearing period. Future clinical studies have to be conducted to verify the in vitro demonstrated advantages of the Novaloc system.https://www.mdpi.com/1996-1944/13/15/3434overdentureLocatorNovalocabutmentretention forceimplant angulation |
| spellingShingle | Christin Arnold Charlotte Stampa Ramona Schweyen Jeremias Hey Arne Boeckler Retentive Characteristics of a New Attachment System for Hybrid Dentures Materials overdenture Locator Novaloc abutment retention force implant angulation |
| title | Retentive Characteristics of a New Attachment System for Hybrid Dentures |
| title_full | Retentive Characteristics of a New Attachment System for Hybrid Dentures |
| title_fullStr | Retentive Characteristics of a New Attachment System for Hybrid Dentures |
| title_full_unstemmed | Retentive Characteristics of a New Attachment System for Hybrid Dentures |
| title_short | Retentive Characteristics of a New Attachment System for Hybrid Dentures |
| title_sort | retentive characteristics of a new attachment system for hybrid dentures |
| topic | overdenture Locator Novaloc abutment retention force implant angulation |
| url | https://www.mdpi.com/1996-1944/13/15/3434 |
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