Evidence map›Paper›PMID 35588055›Full record

ArticleJournal of medical Internet research2022

Characterization of False or Misleading Fluoride Content on Instagram: Infodemiology Study.

Matheus Lotto, Tamires Sá Menezes, Irfhana Zakir Hussain, Shu-Feng Tsao, Zahid Ahmad Butt, Plinio P Morita, Thiago Cruvinel

Abstract read
In one paragraph

Article in Journal of medical Internet research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing 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

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

  1. Use of social media by parents as a resource for knowledge on children's oral health: a systematic review.Canadian journal of dental hygiene : CJDH = Journal canadien de l'hygiene dentaire : JCHD · 2025
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  14. Factors associated with internet use to obtain oral health-related information.Canadian journal of dental hygiene : CJDH = Journal canadien de l'hygiene dentaire : JCHD · 2025
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  18. A study of Facebook comments regarding amber teething necklaces: insights into public perception.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2025
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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

7 authors.

Matheus LottoDepartment of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.ORCID 0000-0002-0121-4006
Tamires Sá MenezesDepartment of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.ORCID 0000-0002-2184-5075
Irfhana Zakir HussainSchool of Public Health Sciences, University of Waterloo, Waterloo, ON, Canada.ORCID 0000-0002-0629-9352
Shu-Feng TsaoSchool of Public Health Sciences, University of Waterloo, Waterloo, ON, Canada.ORCID 0000-0002-6551-7241
Zahid Ahmad ButtSchool of Public Health Sciences, University of Waterloo, Waterloo, ON, Canada.ORCID 0000-0002-2486-4781
Plinio P MoritaSchool of Public Health Sciences, University of Waterloo, Waterloo, ON, Canada.ORCID 0000-0001-9515-6478
Thiago CruvinelDepartment of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.ORCID 0000-0001-7095-908X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOnline false or misleading oral health-related content has been propagated on social media to deceive people against fluoride's economic and health benefits to prevent dental caries.

objectiveThe aim of this study was to characterize the false or misleading fluoride-related content on Instagram.

methodsA total of 3863 posts ranked by users' total interaction and published between August 2016 and August 2021 were retrieved by CrowdTangle, of which 641 were screened to obtain 500 final posts. Subsequently, two independent investigators analyzed posts qualitatively to define their authors' interests, profile characteristics, content type, and sentiment. Latent Dirichlet allocation analysis topic modeling was then applied to find salient terms and topics related to false or misleading content, and their similarity was calculated through an intertopic distance map. Data were evaluated by descriptive analysis, the Mann-Whitney U test, the Cramer V test, and multiple logistic regression models.

resultsMost of the posts were categorized as misinformation and political misinformation. The overperforming score was positively associated with older messages (odds ratio [OR]=3.293, P<.001) and professional/political misinformation (OR=1.944, P=.05). In this context, time from publication, negative/neutral sentiment, author's profile linked to business/dental office/news agency, and social and political interests were related to the increment of performance of messages. Although political misinformation with negative/neutral sentiments was typically published by regular users, misinformation was linked to positive commercial posts. Overall messages focused on improving oral health habits, side effects, dentifrice containing natural ingredients, and fluoride-free products propaganda.

conclusionsFalse or misleading fluoride-related content found on Instagram was predominantly produced by regular users motivated by social, psychological, and/or financial interests. However, higher engagement and spreading metrics were associated with political misinformation. Most of the posts were related to the toxicity of fluoridated water and products frequently motivated by financial interests.

Indexed as

Dental CariesSocial MediaCommunicationFluoridesHumansInfodemiologyFluoridesdental cariesdental healtheHealthfluorideshealth informationhealth outcomeinfodemiologyinformation seeking behaviorinfoveillanceinternetmisinformationsocial media

Identifiers

PMID35588055
PMCPMC9164089

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.