Evidence map›Paper›PMID 41003946›Full record

ArticleInternational journal of implant dentistry2025

Effect of prosthetic emergence profile on labial transmucosal tissue in anterior implants: a retrospective cohort study.

Shunsuke Okamoto, Tamaki Nakano, Ayumi Shintani, Zhihao Zhai, Takumi Sato, Misa Fuji, Takahiko Sakai, Haruka Yamashita, Sayaka Nakagawa, Masahiro Nishimura and 1 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in International journal of implant dentistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Shunsuke OkamotoDivision of Oral Reconstruction and Comprehensive Dentistry, Department of Regenerative Prosthodontics, The University of Osaka Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Tamaki NakanoDivision of Oral Reconstruction and Comprehensive Dentistry, Department of Regenerative Prosthodontics, The University of Osaka Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan. nakano.tamaki.dent@osaka-u.ac.jp.
Ayumi ShintaniDepartment of Medical Statistics, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan.
Zhihao ZhaiDivision of Oral Reconstruction and Comprehensive Dentistry, Department of Regenerative Prosthodontics, The University of Osaka Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Takumi SatoDivision of Oral Reconstruction and Comprehensive Dentistry, Department of Regenerative Prosthodontics, The University of Osaka Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Misa FujiDivision of Oral Reconstruction and Comprehensive Dentistry, Department of Regenerative Prosthodontics, The University of Osaka Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Takahiko SakaiDivision of Oral Reconstruction and Comprehensive Dentistry, Department of Regenerative Prosthodontics, The University of Osaka Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Haruka YamashitaDivision of Oral Reconstruction and Comprehensive Dentistry, Department of Regenerative Prosthodontics, The University of Osaka Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Sayaka NakagawaDivision of Oral Reconstruction and Comprehensive Dentistry, Department of Regenerative Prosthodontics, The University of Osaka Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Masahiro NishimuraDivision of Oral Reconstruction and Comprehensive Dentistry, Department of Regenerative Prosthodontics, The University of Osaka Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Shoichi IshigakiDivision of Oral Reconstruction and Comprehensive Dentistry, Department of Regenerative Prosthodontics, The University of Osaka Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThere are no clear quantitative criteria for the prosthetic labial emergence profile in maxillary anterior implant treatment. We evaluated the impact of the prosthetic labial emergence profile on labial tissue alterations. MATERIALS AND

methodsWe retrospectively analyzed 49 patients with 75 implants in the maxillary anterior region. Cone-beam computed tomography images were obtained at superstructure placement and 1 year later. Two parameters quantified the prosthetic labial emergence profile: (1) emergence angle (EA), defined as the angle between the tangent line from the implant-abutment junction to the superstructure and the implant axis; and (2) subgingival contour distance (SCD), the distance from the deepest concavity of the profile to the tangent line. Labial transmucosal tissue was evaluated by changes in gingival height (ΔGH) and bone height (BH) from the platform. Associations were analyzed using nonlinear least squares regression with robust estimators.

resultsA larger EA (≥ 30°) was associated with smaller ΔGH (overall Wald test p = .025). However, the pointwise 95% CI for the contrast between 21.2° and 30.95° included zero (- 0.57 to 0.08). A larger SCD (≥ 0.5 mm) was associated with significantly smaller ΔGH (p = .026; 95% CI, - 0.64 to - 0.10). Neither EA nor SCD showed significant associations with ΔBH.

conclusionsEA ≥ 30° and SCD ≥ 0.5 mm may help suppress labial soft tissue recession within an esthetically acceptable range. These quantitative indicators provide guidance for prosthetic design in maxillary anterior implants and may contribute to improving esthetic outcomes.

Indexed as

Dental Implantation, EndosseousDental ImplantsLipAdultAgedCone-Beam Computed TomographyFemaleGingivaHumansMaleMaxillaMiddle AgedRetrospective StudiesDental ImplantsCone-Beam computed tomographyDental estheticsDental prosthesis implantationGingivaMaxillaRetrospective study

Identifiers

PMID41003946
PMCPMC12474754

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Registered trials

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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.