Evidence map›Paper›PMID 30382412›Full record

SynthesisClinical oral investigations2019

The effect of green tea as an adjunct to scaling and root planing in non-surgical periodontitis therapy: a systematic review.

S J Gartenmann, Y V Weydlich, S L Steppacher, C Heumann, T Attin, Patrick R Schmidlin

Open access · greenAbstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Clinical oral investigations, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

11 citing papers in PubMed, 34 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Review
  5. Impact of Green Tea (The Japanese dental science review · 2021
    Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Antimicrobial Activity ofJournal of pharmacy & bioallied sciences · 2019
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

S J GartenmannClinic for Preventive Dentistry, Periodontology and Cardiology, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, CH-8032, Zurich, Switzerland.
Y V WeydlichPrivate practice, Wallisellen and St. Gallen, Switzerland.
S L SteppacherPrivate practice, Wallisellen and St. Gallen, Switzerland.
C HeumannDepartment of Statistics, Ludwig-Maximilians-University Munich, Munich, Germany.
T AttinClinic for Preventive Dentistry, Periodontology and Cardiology, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, CH-8032, Zurich, Switzerland.
Patrick R SchmidlinClinic for Preventive Dentistry, Periodontology and Cardiology, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, CH-8032, Zurich, Switzerland. patrick.schmidlin@zzm.uzh.ch.
University of Zurich · CHLudwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo provide a systematic overview on the efficacy of green tea catechin as an adjunct to scaling and root planing (SRP) in terms of probing pocket depth (PPD). MATERIALS AND

methodsA systematic literature search was performed using electronic databases in PubMed, Scopus, Medline, Cochrane, CINAHL, and Web of Science on randomized clinical trials up to January 2017. The research question was posed in accordance with PRISMA guidelines.

resultsThe search provided 234 studies. After analyzing the full texts, five studies were included, with four studies qualifying for meta-analysis. Mean PPD reduction was significantly higher (α = 0.05) when green tea catechin was used as an adjunct to SRP (test group) than with SRP alone (control group). The difference in the reduction was 0.74 mm [0.35-1.13; 95% CI].

conclusionThe local application of green tea catechin as an adjunct to SRP may result in a beneficial reduction in PPD. Due to the highly heterogeneous data and some risk of bias, however, this data still needs to be interpreted with caution. CLINICAL RELEVANCE: The finding suggests that green tea catechin may be a topical adjunct to SRP without negative side effects.

Indexed as

Dental ScalingRoot PlaningTeaChronic PeriodontitisHumansPeriodontal IndexTeaChronic periodontitisGreen teaLocal applicationLocal delivery deviceNon-surgical periodontal therapy

Identifiers

PMID30382412
OpenAlexW2898661350

What OpenQuestion holds

Textmetadata
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.