Trial reportInternational journal of implant dentistry2021
Implant survival after graftless sinus floor augmentation in highly atrophic maxillae: a randomized controlled trial in a split mouth study.
Trial report in International journal of implant dentistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.
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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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 11 citations in OpenAlex.
- Patient-Reported Outcome Measures (PROMs) and Clinician-Reported Outcomes (ClinROs) in Sinus Floor Elevation for Implant Rehab in the Edentulous Maxilla: A Systematic Review and COSMIN Analysis.Clinical oral implants research · 2026Pooled it
- Efficacy of Different Materials for Maxillary Sinus Floor Augmentation With Lateral Approach. A Systematic Review.Clinical implant dentistry and related research · 2025Pooled it
- Clinical, radiographic and histomorphometry evaluation of the osteogenic potential of Schneiderian membrane after graftless maxillary sinus augmentation: a randomized controlled clinical trial.BMC oral health · 2026Trial
- Assessment of guided lateral maxillary sinus lift procedure with simultaneous implant placement using stereolithographic surgical guide: a randomized controlled clinical study.Oral and maxillofacial surgery · 2025Trial
- Biomechanical comparison of titanium and Y-TZP subperiosteal implants in atrophic maxilla: a finite element study.BMC oral health · 2026Article
- Consensus Report of Group 3 of the 1st Global Consensus for Clinical Guidelines for the Rehabilitation of the Edentulous Maxilla: Advanced Diagnostic Imaging, Augmentation Techniques, and Management of Complications.Clinical oral implants research · 2026Article
- Effects of Maxillary Sinus Augmentation on Endosseous Dental Implant Survival: A Systematic Review and Meta-Analysis.Cureus · 2026Review
- Article
- Trans-sinus dental implants, for immediate placement when insufficient alveolar height is present: an alternative to zygomatic implants - surgical case series.Annals of medicine and surgery (2012) · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe success rate of dental implants after graftless sinus augmentation versus conventional sinus augmentation surgery in atrophic maxillae in edentulous patients was investigated.
methodsThis randomized study was performed in ten edentulous patients with marked maxillary atrophy. On the graftless side, the sinus membrane was lifted by a resorbable membrane. The control side was augmented with a mixture of autografts and xenografts. Implant placement followed 6 months postoperatively. Outcomes were implant survival, success of prosthetic rehabilitation and stability of vertical bone gain.
resultsTen patients were included. Postoperative radiology showed sufficient bone gain on both maxillary sides. Follow-up varied from 57 to 88 months. The conventional side showed significant (p = 0.041) more bone gain than the experimental side (respectively, 9.69 mm and 6.20 mm). A total of 59 implants were placed: 30 after conventional, 29 after graftless augmentation. One implant was lost on the conventional side and four on the experimental side. The implant survival was significantly higher on the conventional side (96.7% vs. 86.2%, p < 0.001, RR = 4.14). Prosthetic restoration was functionally successful in all cases.
conclusionBone gain and implant survival were significantly lower in the non-grafted side versus the grafted side. Prosthetic rehabilitation was possible in all ten patients. The non-grafted technique may have some potential for clinical use, although it showed poorer results. Trial registration The Netherlands Trialregister. NTR NL3541 (NTR3696). Registered 20 January 2013, https://www.trialregister.nl/trial/3541 .
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