Evidence map›Paper›PMID 40730516›Full record

ArticleClinical implant dentistry and related research2025

A Multicenter Study of Factors Related to Early Implant Failures-Part 2: Patient Factors.

Rachel Duhan Wåhlberg, Victoria Franke Stenport, Ann Wennerberg, Lars Hjalmarsson

Abstract readMulticenter Study
PubMed Full text at PMC Publisher
In one paragraph

Article in Clinical implant dentistry and related research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Trial
  2. Article
  3. The dental implant surface: a review of the past, present and future.Journal of materials science. Materials in medicine · 2026
    Review
  4. Article
  5. 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

4 authors.

Rachel Duhan WåhlbergDepartment of Prosthodontics/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, SE, Sweden.ORCID https://orcid.org/0009-0008-2898-7595
Victoria Franke StenportDepartment of Prosthodontics/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, SE, Sweden.ORCID https://orcid.org/0000-0001-5911-3665
Ann WennerbergDepartment of Prosthodontics/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, SE, Sweden.
Lars HjalmarssonDepartment of Prosthodontics/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, SE, Sweden.ORCID https://orcid.org/0000-0003-4863-3213

Funding

Center for Clinical Research in Sörmland DLL-1013938Public Dental Service Region SörmlandPublic Dental Service Region Västra Götaland 921241The Swedish Research Council 201502971
6 · The paper itself

Abstract

backgroundRecent advancements in dental implant materials, designs, and surgery have increased their use, especially for challenging local conditions. As guidelines for individualized risk assessment are increasingly emphasized, implant treatment has become available to patients with diverse medical backgrounds. However, clinical research with large patient groups is needed to investigate the effects of patient-related factors associated with early implant failure. PURPOSE: This paper investigates patient factors in two patient cohorts associated with early implant complications and failures. MATERIALS AND

methodsThe collected data were analyzed and presented in two studies. Both studies followed the same data collection methodology and compared cohorts treated in 2007 and 2017. The same patient-level dataset was analyzed, although the second study included additional analyses of diseases and allergies. Data were analyzed univariately (p < 0.20) to select variables for the multivariable logistic regression model (p < 0.05), with early implant failures and complications as dependent variables.

resultsIn total, 1875 patients with 4670 implants were included. There were 74 (3.7%) dropouts, mainly due to lack of data. The 2007 cohort comprised 799 patients with 2473 implants, and the 2017 cohort comprised 1076 patients with 2287 implants. Differences were observed between the two cohorts for the number of implants per patient, exposed implant threads, and preoperative antibiotics. In the 2007 cohort, 23 (2.9%) patients had early implant failure. In the 2017 cohort, 40 (3.7%) had early implant failure (p > 0.30). Significantly more implants failed in the 2017 cohort (n = 56, 2.4%) than in the 2007 cohort (n = 26, 1.1%) (p < 0.001). Early complications were reported for 56 (7.0%) patients in 2007 and 145 (13.5%) patients in 2017 (p < 0.001). Three patient-related variables were associated with an increased risk of early failure-food allergy, exposed implant threads, and increased number of implants. Seven variables were related to an increased risk of complications: smoking, exposed threads, no preoperative antibiotics, number of implants, sinus perforations, food allergy, and metal allergy.

conclusionsThis study identified three factors associated with early implant failure and seven associated with early complications.

Indexed as

Dental Implantation, EndosseousDental ImplantsDental Restoration FailureAdultAgedFemaleHumansMaleMiddle AgedRisk FactorsDental Implantsearly implant complicationsearly implant failuremulticenter cohort studymultivariable regression analysis

Identifiers

PMID40730516
PMCPMC12307256

What Socratic holds

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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 Socratic graph.