Evidence map›Paper›PMID 40530953›Full record

SynthesisClinical oral implants research2025

Comprehensive Update on Implants in Patients With Head and Neck Cancer (2021-2024): Systematic Review and Meta-Analysis of the Impact of Radiotherapy and Chemotherapy on Implant Survival.

Shengchi Fan, Leonardo Diaz, Gustavo Sáenz-Ravello, Eduard Valmaseda-Castellon, Bilal Al-Nawas, Eik Schiegnitz

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis 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 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. 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

6 authors.

Shengchi FanDepartment of Oral and Maxillofacial Surgery, Plastic Operations, University Medical Center Mainz, Mainz, Germany.ORCID 0000-0003-0231-7151
Leonardo DiazFaculty of Dentistry, Postgraduate School, Universidad de Chile, Santiago, Chile.ORCID 0000-0002-4261-2000
Gustavo Sáenz-RavelloFaculty of Dentistry, Center for Epidemiology and Surveillance of Oral Diseases (CESOD), Universidad de Chile, Santiago, Chile.
Eduard Valmaseda-CastellonOral Surgery and Implantology, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain.ORCID 0000-0001-9669-3187
Bilal Al-NawasDepartment of Oral and Maxillofacial Surgery, Plastic Operations, University Medical Center Mainz, Mainz, Germany.ORCID 0000-0002-8665-5803
Eik SchiegnitzDepartment of Oral and Maxillofacial Surgery, Plastic Operations, University Medical Center Mainz, Mainz, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study aimed to investigate implant outcomes in patients with head and neck cancer undergoing radiotherapy or chemotherapy by incorporating the latest research findings.

methodsThe present review was conducted to update the focused question: What is the survival rate of implants placed in patients with head and neck cancer receiving radiotherapy or chemotherapy compared to non-irradiated patients? It built upon two previous systematic reviews (2014 and 2022) and provided an updated synthesis of the literature, focusing on clinical studies published between 2021 and 2024. The earlier reviews were included in the quantitative synthesis only to offer a broader longitudinal perspective.

resultsNine studies were identified, with seven included in the quantitative synthesis and meta-analysis. The implant survival rate was significantly lower in irradiated patients (85.6%) compared to non-irradiated patients (90.0%) (RR = 1.62, 95% CI: 1.33-1.98, p < 0.0001, I

conclusionsCurrent evidence indicates that radiotherapy/chemotherapy significantly increases the risk of implant loss in patients with head and neck cancer, with higher radiation doses possibly being associated with increased peri-implant bone loss, while implants placed in native bone exhibit a lower risk of failure compared to those placed in grafted bone.

Indexed as

Dental Implantation, EndosseousDental ImplantsDental Restoration FailureHead and Neck NeoplasmsAntineoplastic AgentsHumansRadiotherapyAntineoplastic AgentsDental Implantschemotherapydental implantshead and neck cancerradiation therapysurvival rate

Identifiers

PMID40530953
PMCPMC12423586

What OpenQuestion holds

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Registered trials

None linked

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.