Evidence map›Paper›PMID 32556661›Full record

ArticleClinical oral investigations2021

Usefulness of hemoglobin examination in gingival crevicular fluid during supportive periodontal therapy to diagnose the pre-symptomatic state in periodontal disease.

Hiroshi Ito, Yukihiro Numabe, Shuichi Hashimoto, Sunao Uehara, Ya-Hsin Wu, Tomohisa Ogawa

Open access · hybridAbstract read
In one paragraph

Article in Clinical oral investigations, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.3field-weighted citation impact, top 21% of its field
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, 13 citations in OpenAlex.

  1. Article
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  3. The survival status ofJournal of oral microbiology · 2026
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  5. Review
  6. Comparison of three fluids for calibration of the new Periotron® 8010.Medicina oral, patologia oral y cirugia bucal · 2023
    Article
  7. Review
  8. Review
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 at 2 institutions in 1 country.

Hiroshi ItoDepartment of Periodontology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan. hiroshi@tky.ndu.ac.jp.ORCID http://orcid.org/0000-0002-3103-0726
Yukihiro NumabeDepartment of Periodontology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan.
Shuichi HashimotoThe Nippon Dental University, Tokyo, Japan.
Sunao UeharaDepartment of Periodontology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan.
Ya-Hsin WuDepartment of Periodontology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan.
Tomohisa OgawaGeneral Dentistry, The Nippon Dental University Hospital, Tokyo, Japan.
Nippon Dental University · JPNippon Dental University Hospital · JP

Funding

The Ministry of Education and Science Research Funds 20K09964The Ministry of Education and Science Research Funds 20K09981
6 · The paper itself

Abstract

objectivesThe absence of bleeding on probing (BOP) is a good predictor of disease stability. This study investigated whether detection of hemoglobin (Hb) in gingival crevicular fluid (GCF) indicates minute signs of periodontal disease, even in BOP (-) cases. MATERIALS AND

methodsGCF was collected from gingival sulci of 152 sound maxillary and mandibular teeth from 76 patients who had entered supportive periodontal therapy (SPT) using the split-mouth design. As clinical parameters, plaque index, GCF amount, gingival index, probing depth (PD), clinical attachment level, BOP, and alveolar bone resorption ratio were then recorded. As biochemical parameters, Hb amount, alkaline phosphatase (ALP) activity, and protein amount in GCF were measured. Periodontal conditions of diseased sites (PD ≥ 4 mm, BOP (+)) and healthy sites (PD ≤ 4 mm, BOP (-)) were further classified into two groups using the Hb cutoff value determined by PD and BOP and analyzed.

resultsDespite being healthy, ALP activity and protein amount in sulci of the group with Hb level greater than the cutoff value were significantly higher than those in the group with Hb level less than the cutoff value (P < 0.01).

conclusionsThis study indicates that Hb examination is a promising candidate marker of pre-symptomatic periodontal disease because Hb presence in GCF suggests slight tissue damage, even in healthy sites defined as BOP (-). CLINICAL RELEVANCE: Hb examination of GCF is a powerful diagnostic tool for pre-symptomatic diagnosis of periodontal disease.

Indexed as

Periodontal DiseasesPeriodontitisGingival Crevicular FluidHemoglobinsHumansPeriodontal Attachment LossPeriodontal PocketHemoglobinsGingival crevicular fluidHemoglobinPeriodontitisSupportive periodontal therapy

Identifiers

PMID32556661
PMCPMC7819911
OpenAlexW3036588827

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.