ArticleCureus2025
Clinical Outcomes of Single-Piece Zirconia Implants Compared With Tooth-Supported Fixed Dental Prostheses: A Retrospective Study.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionReplacement of a single missing tooth with evolving treatment alternatives remains a common clinical challenge. This retrospective cohort study aimed to compare the treatment duration and prosthetic/biological complication rates between single-piece zirconia implants and conventional tooth-supported three-unit fixed dental prostheses (FDPs) over a minimum three-year follow-up. MATERIALS AND
methodsThis study included 200 patients (100 per group) treated between 2018 and 2022 for a single missing mandibular premolar or molar. The implant group received one-piece zirconia implants with immediate/early restoration, whereas the FDP group received porcelain-fused-to-metal or monolithic zirconia three-unit bridges. The treatment duration, number of visits, and complications were retrieved from clinical records. Complication-free survival was analyzed using Kaplan-Meier curves and Cox regression.
resultsSingle-piece implants required significantly longer treatment times (157.1 ± 48.3 vs. 46.6 ± 18.9 days; p<0.001) and more clinical visits (5.2 ± 1.1 vs. 3.0 ± 0.8; p<0.001) than FDPs. Overall, prosthetic complication rates were similar (p=0.689), but complication-free survival was significantly higher in the implant group according to the log-rank test (p=0.028), with 56 (56%) implant patients versus 36 (36%) FDP patients remaining complication-free throughout follow-up. The mean time to the first complication or censoring was longer for implants (680.4 vs. 592.3 days; p = 0.024). Multivariate Cox regression analysis showed that restoration type was not an independent predictor of complication risk (p = 0.346) once complications occurred.
conclusionSingle-piece zirconia implants, despite requiring a longer treatment duration and more appointments, offered superior mid-term complication-free survival compared with conventional three-unit FDPs for replacing a single mandibular posterior tooth. When the preservation of sound adjacent teeth is prioritized, single-piece zirconia implants represent a biologically favorable option for suitable patients.
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