Trial reportClinical oral implants research2025
Effect of CAD/CAM Abutment Morphology on the Outcomes of Implant Therapy: A Randomized Controlled Trial.
Trial report in Clinical oral implants research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Influence of Concave Versus Convex Emergence Profiles on Midfacial Mucosal Stability-A Systematic Review With Meta-Analysis.Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 2026Pooled it
- Convex Versus Concave Emergence Profile of Implant-Supported Crowns in the Aesthetic Zone: 3-Year Results of a Randomized Controlled Trial.Journal of clinical periodontology · 2025Trial
- Association of Transmucosal Emergence Geometry and Peri-Implant Diseases Prevalence Around Bone- and Tissue-Level Implants: A Cross-Sectional Study.Clinical oral implants research · 2026Article
- Diagnostic accuracy of transmucosal probe visualization for peri-implant mucosal phenotype assessment: A cross-sectional study.Journal of periodontology · 2026Article
- Emergence Profile Angle Matters-Restoring Peri-Implant Health by Adjusting Prosthetics-A Narrative Review.Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 2026Review
- Peri-Implant Soft Tissue Deformities in the Anterior Maxilla: A Cross-Sectional Study.Clinical implant dentistry and related research · 2026Article
- Peri-Implant Inflammation Varies With Different Restorative Emergence Angles: An Histological Evaluation.Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
objectivesVariations in transmucosal abutment contour design may affect the outcomes of implant therapy. This randomized controlled trial was primarily aimed at testing the effect that CAD/CAM zirconia abutments with either a concave or linear divergent transmucosal morphology have on peri-implant mucosal dynamics and indicators of peri-implant health at 1 year after final implant-supported prosthesis insertion in the anterior maxilla. MATERIALS AND
methodsFollowing computer-guided implant placement and osseointegration, eligible subjects were randomized into either the experimental (concave morphology) or the control (linear divergent morphology) group. A comprehensive set of outcomes of interest related to peri-implant soft tissue dynamics, phenotypical features, and indicators of peri-implant health were assessed at different time points over a 1-year period after insertion of the final restoration.
resultsOut of 60 initially recruited subjects, a total of 54 completed the study (n = 29 in the experimental group concave/n = 25 in the control group). Overall implant survival and restoration rates between master impression and 12 months were 100% and 98.2%, respectively. Although a trend for coronal migration of the buccal mucosa zenith, gain in mucosal thickness, and increased probing depth and bleeding on probing was observed in both groups, these changes were clinically negligible, and no substantial differences were observed between study groups regardless of variations in transmucosal abutment morphology.
conclusionThe use of either linear divergent or concave custom CAD/CAM zirconia abutments in a screw-retained, delayed loading approach yielded no significant differences.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.