Trial reportJournal of clinical periodontology2022
Anterior implant restorations with a convex emergence profile increase the frequency of recession: 12-month results of a randomized controlled clinical trial.
Trial report in Journal of clinical periodontology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07637864 (Association Between Buccal Prosthetic Profile Angles at Different Supraplatform Zones and Peri-Implant Tissue Remodeling Around Bone-Level Implants), which is not on this map. Cited by 29 papers, 2 of them syntheses 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.
Association Between Buccal Prosthetic Profile Angles at Different Supraplatform Zones and Peri-Implant Tissue Remodeling Around Bone-Level Implants: A Retrospective CBCT-Based Cohort Study
Who cites it
29 citing papers in PubMed, 2 syntheses or guidelines 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
- Prevalence, incidence, risk, and protective factors for soft tissue dehiscences at implant sites in the absence of disease: An AO/AAP systematic review and meta-regression analysis.Journal of periodontology · 2025Pooled 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
- Hard and soft tissue contour changes following simultaneous guided bone regeneration at single peri-implant dehiscence defects using either resorbable or non-resorbable membranes: a 6-month secondary analysis of a randomized controlled trial.Clinical oral investigations · 2025Trial
- Effect of CAD/CAM Abutment Morphology on the Outcomes of Implant Therapy: A Randomized Controlled Trial.Clinical oral implants research · 2025Trial
- 3D analysis of soft tissue dimensional changes after dental implant placement with butt-joint vs. conical connection: a 12-month randomized control trial.International journal of implant dentistry · 2024Trial
- Survival and complication rates of two dental implant systems supporting fixed restorations: 10-year data of a randomized controlled clinical study.Clinical oral investigations · 2023Trial
- Anterior implant restorations with a convex emergence profile increase the frequency of recession: 12-month results of a randomized controlled clinical trial.Journal of clinical periodontology · 2022Trial
- Marginal bone level changes and soft-tissue esthetics around implants with convergent transmucosal profiles: 10-year retrospective analysis.Clinical oral investigations · 2026Article
- Peri-Implant Supracrestal Resiliency (PSR): A Geometric Determinant Guiding Emergence Profile Execution.Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 2026Article
- Dual-Hybrid Treatment Approach for Peri-Implant Hard and Soft Tissue Stability.Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 2026Article
- Peri-Implant Soft Tissue Deformities in the Anterior Maxilla: A Cross-Sectional Study.Clinical implant dentistry and related research · 2026Article
- Impact of the Buccal Dehiscence Morphotype on the Regenerative Strategy in Immediate Implant Placement.Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 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
- Emergence Angle, Marginal Bone Loss, and Radiographic Corticalization Around MIS Implants: A 5-Year Retrospective Study of Single, Splinted, and Bridge Restorations.Journal of clinical medicine · 2026Article
- Emergence Angle and Emergence Profile in Implant-Supported Restorations: A Scoping Review.Dentistry journal · 2026Review
- Prosthetic Emergence Angles and Implant Outcomes: A Retrospective Study With at Least 5 Years of Follow-Up.Clinical implant dentistry and related research · 2026Article
- Nursing Approaches to Oral Implant Care in Patients with Chronic Systemic Conditions: An Integrative Review.Journal of multidisciplinary healthcare · 2026Review
- Soft tissue considerations in modern restorative dental practice.Bioinformation · 2026Article
- Adjunctive Procedures in Immediate Implant Placement: Necessity or Option? A Systematic Review and Meta-Analysis.Materials (Basel, Switzerland) · 2025Review
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
aimTo test whether the emergence profile (CONVEX or CONCAVE) of implant-supported crowns influences the mucosal margin stability up to 12 months after insertion of the final restoration. MATERIALS AND
methodsForty-seven patients with a single implant in the anterior region were randomly allocated to one of three groups: (1) CONVEX (n = 15), implant provisional and an implant-supported crown both with a convex profile; (2) CONCAVE (n = 16), implant provisional and an implant-supported crown both with a concave profile; (3) CONTROL (n = 16), no provisional (healing abutment only) and an implant-supported crown. All patients were recalled at baseline, 6, and 12 months. The stability of mucosal margin along with clinical, aesthetic, and profilometric outcomes as well as time and costs were evaluated. To predict the presence of recession, multivariable logistic regressions were performed and linear models using generalized estimation equations were conducted for the different outcomes.
resultsForty-four patients were available at 12 months post-loading. The frequency of mucosal recession amounted to 64.3% in group CONVEX, 14.3% in group CONCAVE, and 31.4% in group CONTROL. Regression models revealed that a CONVEX profile was significantly associated with the presence of recessions (odds ratio: 12.6, 95% confidence interval: 1.82-88.48, p = .01) compared with the CONCAVE profile. Pink aesthetic scores amounted to 5.9 in group CONVEX, 6.2 in group CONCAVE, and 5.4 in group CONTROL, with no significant differences between the groups (p = .735). Groups CONVEX and CONCAVE increased the appointments and costs compared with the CONTROL group.
conclusionsThe use of implant-supported provisionals with a CONCAVE emergence profile results in a greater stability of the mucosal margin compared with a CONVEX profile up to 12 months of loading. This is accompanied, however, by increased time and costs compared with the absence of a provisional and may not necessarily enhance the aesthetic outcomes.
trial registrationGerman Clinical Trials Register; DRKS00009420.
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