Evidence map›Paper›PMID 33406080›Full record

Trial reportPloS one2021

Gene-environment interaction in molar-incisor hypomineralization.

Mariana Bezamat, Juliana F Souza, Fernanda M F Silva, Emilly G Corrêa, Aluhe L Fatturi, João A Brancher, Flávia M Carvalho, Tayla Cavallari, Laís Bertolazo, Cleber Machado-Souza and 13 more

Open access · goldAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 3 pooled it
9.7field-weighted citation impact, top 1% 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

29 citing papers in PubMed, 3 syntheses or guidelines pooled it, 75 citations in OpenAlex.

  1. Pooled it
  2. Global prevalence of hypomineralised second primary molars: an updated systematic review with a meta-analysis.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2026
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  11. Expression ofInternational journal of molecular sciences · 2025
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  14. Association between molar incisor hypomineralisation and tooth agenesis: a cross-sectional study in Brazilian children and adolescents.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2024
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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

23 authors at 10 institutions in 3 countries.

Mariana BezamatDepartment of Oral Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.ORCID 0000-0001-9397-3167
Juliana F SouzaDepartment of Stomatology, Federal University of Paraná, Curitiba, State of Paraná, Brazil.
Fernanda M F SilvaDepartment of Pediatric Dentistry and Orthodontics, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil.ORCID 0000-0003-3247-7746
Emilly G CorrêaGraduate Program of Dentistry, Pontifical Catholic University of Paraná, Curitiba, State of Paraná, Brazil.
Aluhe L FatturiDepartment of Stomatology, Federal University of Paraná, Curitiba, State of Paraná, Brazil.
João A BrancherGraduate Program of Dentistry, Positivo University, Curitiba, State of Pará, Brazil.ORCID 0000-0002-8914-702X
Flávia M CarvalhoDepartment of Genetics, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brazil.
Tayla CavallariGraduate Program of Dentistry, Pontifical Catholic University of Paraná, Curitiba, State of Paraná, Brazil.
Laís BertolazoGraduate Program of Dentistry, Pontifical Catholic University of Paraná, Curitiba, State of Paraná, Brazil.ORCID 0000-0002-8415-7675
Cleber Machado-SouzaGraduate Program of Applied Biotechnology to Child and Adolescent Health, Pequeno Príncipe College, Curitiba, State of Pará, Brazil.ORCID 0000-0003-0565-3492
Mine KoruyucuDepartment of Pedodontics, Istanbul University, Istanbul, Turkey.ORCID 0000-0002-2077-5095
Merve BayramDepartment of Pedodontics, Medipol Istanbul University, Istanbul, Turkey.
Andrea RacicDepartment of Oral Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.
Benjamin M HarrisonDepartment of Oral Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.ORCID 0000-0002-5713-2843
Yan Y SweatCraniofacial Anomalies Research Center and Department of Orthodontics, College of Dentistry, The University of Iowa, Iowa City, Iowa, United States of America.ORCID 0000-0002-9903-8054
Ariadne LetraDepartment of Diagnostic and Biomedical Sciences, and Center for Craniofacial Research, UTHealth School of Dentistry at Houston, Houston, Texas, United States of America.ORCID 0000-0002-7197-6735
Deborah Studen-PavlovichDepartment of Pediatric Dentistry, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.ORCID 0000-0002-6427-8613
Figen SeymenDepartment of Pedodontics, Istanbul University, Istanbul, Turkey.
Brad AmendtCraniofacial Anomalies Research Center and Department of Orthodontics, College of Dentistry, The University of Iowa, Iowa City, Iowa, United States of America.
Renata I WerneckGraduate Program of Dentistry, Pontifical Catholic University of Paraná, Curitiba, State of Paraná, Brazil.
Marcelo C CostaDepartment of Pediatric Dentistry and Orthodontics, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil.
Adriana ModestoDepartment of Pediatric Dentistry, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.
Alexandre R VieiraDepartment of Oral Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.ORCID 0000-0003-3392-6881
University of Pittsburgh · USPontifícia Universidade Católica do Paraná · BRIstanbul University · TRUniversidade Federal do Paraná · BRUniversidade Federal do Rio de Janeiro · BRUniversity of Iowa · USFundação Oswaldo Cruz · BRIstanbul Medipol University · TRThe University of Texas Health Science Center at Houston · USUniversidade Positivo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Molar incisor hypomineralization (MIH) is an enamel condition characterized by lesions ranging in color from white to brown which present rapid caries progression, and mainly affects permanent first molars and incisors. These enamel defects usually occur when there are disturbances during the mineralization or maturation stage of amelogenesis. Both genetic and environmental factors have been suggested to play roles in MIH's development, but no conclusive risk factors have shown the source of the disease. During head and neck development, the interferon regulatory factor 6 (IRF6) gene is involved in the structure formation of the oral and maxillofacial regions, and the transforming growth factor alpha (TGFA) is an essential cell regulator, acting during proliferation, differentiation, migration and apoptosis. In this present study, it was hypothesized that these genes interact and contribute to predisposition of MIH. Environmental factors affecting children that were 3 years of age or older were also hypothesized to play a role in the disease etiology. Those factors included respiratory issues, malnutrition, food intolerance, infection of any sort and medication intake. A total of 1,065 salivary samples from four different cohorts were obtained, and DNA was extracted from each sample and genotyped for nine different single nucleotide polymorphisms. Association tests and logistic regression implemented in PLINK were used for analyses. A potential interaction between TGFA rs930655 with all markers tested in the cohort from Turkey was identified. These interactions were not identified in the remaining cohorts. Associations (p<0.05) between the use of medication after three years of age and MIH were also found, suggesting that conditions acquired at the age children start to socialize might contribute to the development of MIH.

Indexed as

Gene-Environment InteractionGenotypePolymorphism, Single NucleotideAdolescentAmelogenesisChildDental Enamel HypoplasiaFemaleHumansIncisorMaleMolarTransforming Growth Factor alphaTGFA protein, humanTransforming Growth Factor alpha

Identifiers

PMID33406080
PMCPMC7787379
OpenAlexW3119451513

What OpenQuestion holds

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LicenceCC BY
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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.