Evidence map›Paper›PMID 41088191›Full record

SynthesisBMC oral health2025

Meta-analysis of randomized controlled trials: efficacy of vitamin C mesotherapy for gingival hyperpigmentation in adults.

Mina Hu, Yue Gao, Jian Xu, Jianying Zhao

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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.

Mina Hu *Department of Endodontics, Shaoxing Stomatological Hospital, No.399 Yan 'an East Road, Yuecheng District, Shaoxing City, Zhejiang Province, 312000, China.
Yue Gao *Department of Periodontology, Shaoxing Stomatological Hospital, No.399 Yan 'an East Road, Yuecheng District, Shaoxing City, Zhejiang Province, 312000, China.
Jian XuDepartment of Endodontics, Shaoxing Stomatological Hospital, No.399 Yan 'an East Road, Yuecheng District, Shaoxing City, Zhejiang Province, 312000, China.
Jianying ZhaoDepartment of Endodontics, Shaoxing Stomatological Hospital, No.399 Yan 'an East Road, Yuecheng District, Shaoxing City, Zhejiang Province, 312000, China. zhaojy1018@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGingival hyperpigmentation is a common aesthetic concern, necessitating evidence-based evaluation of depigmentation treatments, particularly vitamin C mesotherapy.

methodsA systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted across PubMed, EMBASE, and Web of Science databases. Data were extracted and analyzed using both random and common effects models to calculate mean difference (MD) and 95% confidence interval (CI). Heterogeneity was assessed using I², tau², and Q statistics.

resultsThe meta-analysis, including 11 RCTs with a total of 236 participants, revealed significant effects of vitamin C mesotherapy. For Visual Analog Scale (VAS) scores, the MD was 2.0580 [1.6161; 2.4998] (p < 0.0001), with high heterogeneity (I² = 90.6%). The overall effect for GPI scores was not statistically significant (MD = -0.72, 95% CI [-1.47, 0.03], p = 0.0585), with high heterogeneity (I

conclusionVitamin C mesotherapy demonstrates significant efficacy in reducing gingival hyperpigmentation, notably showing a favorable outcome compared to diode laser for DOPI scores and no significant difference from topical gel. While laser and surgical interventions generally present larger overall mean differences, vitamin C mesotherapy remains a valuable treatment modality, adding to the diverse effective options for managing gingival hyperpigmentation.

Indexed as

Ascorbic AcidGingival DiseasesHyperpigmentationMesotherapyAdultHumansRandomized Controlled Trials as TopicTreatment OutcomeAscorbic AcidDepigmentationGingival hyperpigmentationMeta-AnalysisRandomized controlled trialsVitamin c mesotherapy

Identifiers

PMID41088191
PMCPMC12523138

What OpenQuestion 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 OpenQuestion graph.