| Autor: |
Takashi Uesugi, Yoshiaki Shimoo, Motohiro Munakata, Daisuke Sato, Kikue Yamaguchi, Michiya Fujimaki, Kazuhisa Nakayama, Tae Watanabe, Paulo Malo |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
International Journal of Implant Dentistry, Vol 9, Iss 1, Pp 1-17 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2198-4034 |
| DOI: |
10.1186/s40729-023-00511-0 |
| Popis: |
Abstract Purpose Implant-supported immediately loaded fixed full-arch rehabilitation via All-on-four treatment yields good long-term results for both the maxilla and the mandible. However, the risk factors affecting long-term implant survival are unknown, and the long-term prognosis of All-on-four concept procedures in Japanese individuals has not been elucidated. We aimed to determine the cumulative implant survival rate after 3–17-year follow-up and identify the associated risk factors. Methods We analysed 561 cases (307 maxillae, 254 mandibles) with 2364 implants (1324 maxillae, 1040 mandibles) that received All-on-four treatment. We investigated the cumulative implant- and patient-level survival rates and various risk factors for implant failure. Statistical analysis was performed using the log-rank test for differences in Kaplan–Meier curves, univariate analysis using the Chi-square test, and multivariate analysis for risk factors affecting the survival rate. Results The cumulative survival rate was 94.4% by patient level and 97.4% by implant level for the maxilla, and 96.7% by patient level and 98.9% by implant for the mandible, with up to 17 years of follow-up. The maxillary survival rate at the implant level was significantly lower (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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