Evidence map›Paper›PMID 40384529›Full record

SynthesisJournal of oral rehabilitation2025

Impact of Gastroesophageal Reflux Disease on Salivary Flow Rate, pH and Buffer Capacity: A Systematic Review and Meta-Analysis.

Ömer Hatipoğlu, Ömer Yıldırım, Fatma Pertek Hatipoğlu

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Journal of oral rehabilitation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Expanding the Phenotypic Spectrum of Degcags Syndrome: Novel Craniofacial and Oral Findings.Special care in dentistry : official publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric Dentistry
    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

3 authors.

Ömer HatipoğluDepartment of Restorative Dentistry, Recep Tayyip Erdogan University, Rize, Turkey.ORCID https://orcid.org/0000-0002-4628-8551
Ömer YıldırımDepartment of Prosthodontics, Recep Tayyip Erdogan University, Rize, Turkey.ORCID https://orcid.org/0009-0000-2684-2749
Fatma Pertek HatipoğluDepartment of Endodontics, Recep Tayyip Erdogan University, Rize, Turkey.ORCID https://orcid.org/0000-0003-0307-3021

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis systematic review and meta-analysis aimed to assess the impact of gastroesophageal reflux disease (GERD) on salivary parameters, including salivary pH (SpH), stimulated salivary flow rate (SSFR), unstimulated salivary flow rate (USFR), and salivary buffer capacity (SBC).

methodsA thorough review of the literature was carried out across various databases, following rigorous inclusion and exclusion criteria. Studies that focused on patients with GERD and assessed the specified salivary parameters were included. The data was synthesised and analysed using standard meta-analytical techniques.

resultsThe meta-analysis included 21 studies. GERD patients exhibited significantly lower SpH (MD = -0.18, 95% CI: -0.34 to -0.02), SSFR (MD = -0.35, 95% CI: -0.51 to -0.18), and SBC (MD = -0.43, 95% CI: -0.67 to -0.19) compared to healthy controls. No significant reduction was observed in USFR (MD = -0.10, 95% CI: -0.25 to 0.05). Subgroup analyses indicated significant reductions in SpH, SSFR, and SBC in both Reflux Esophagitis and Non-Erosive Reflux Disease groups. Proton pump inhibitor usage was associated with further reductions in SpH (MD = -0.22, 95% CI: -0.37 to -0.06) and SBC (MD = -0.54, 95% CI: -0.80 to -0.27), but did not significantly impact USFR. Excluding studies with high and moderate risk of bias confirmed the robustness of the significant reductions.

conclusionsWhile GERD may reduce SpH, SSFR, and SBC, the evidence supporting these conclusions is uncertain due to inherent weaknesses in the existing studies. Regular monitoring of these parameters is essential for effective oral health management in patients diagnosed with GERD.

Indexed as

Gastroesophageal RefluxSalivaBuffersHumansHydrogen-Ion ConcentrationSecretory RateBuffersgastroesophageal reflux diseasemeta‐analysisproton pump inhibitorssalivary buffer capacitysalivary flow ratesalivary pH

Identifiers

PMID40384529
PMCPMC12426466

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.