Evidence map›Paper›PMID 30382812›Full record

ArticleEnvironmental health and preventive medicine2018

Prevalence of molar incisor hypomineralization and regional differences throughout Japan.

Masato Saitoh, Yuki Nakamura, Mika Hanasaki, Issei Saitoh, Yuji Murai, Yoshihito Kurashige, Satoshi Fukumoto, Yukiko Asaka, Masaaki Yamada, Michikazu Sekine and 2 more

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Article in Environmental health and preventive medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 3 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

10 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Review
  7. Article
  8. Article
  9. Molar incisor hypomineralisation in Lebanon: prevalence and clinical characteristics.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2020
    Article
  10. A clinical and statistical study on enamel hypomineralization of the first permanent molar in the period of mixed dentition.Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie
    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

12 authors.

Masato SaitohDivision of Pediatric Dentistry, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Tobetsu, Ishikari, Hokkaido, 061-0293, Japan. msaitoh@hoku-iryo-u.ac.jp.ORCID http://orcid.org/0000-0002-9237-8363
Yuki NakamuraDivision of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, 951-8514, Japan.
Mika HanasakiDivision of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, 951-8514, Japan.
Issei SaitohDivision of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, 951-8514, Japan.
Yuji MuraiDivision of Pediatric Dentistry, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Tobetsu, Ishikari, Hokkaido, 061-0293, Japan.
Yoshihito KurashigeDivision of Pediatric Dentistry, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Tobetsu, Ishikari, Hokkaido, 061-0293, Japan.
Satoshi FukumotoDivision of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, 980-8575, Japan.
Yukiko AsakaDepartment of Epidemiology and Health Policy, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, 930-0194, Japan.
Masaaki YamadaDepartment of Epidemiology and Health Policy, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, 930-0194, Japan.
Michikazu SekineDepartment of Epidemiology and Health Policy, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, 930-0194, Japan.
Haruaki HayasakiDivision of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, 951-8514, Japan.
Shigenari KimotoDepartment of Dentistry for Growth and Development of Oral Function Pediatric Dentistry, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, 238-8580, Japan.

Funding

Japanese Dental Science Federation JDSF-DSP1-2017-109-1
6 · The paper itself

Abstract

backgroundMolar incisor hypomineralization (MIH) frequently occurs in children worldwide. However, MIH prevalence throughout Japan has not yet been investigated. The purpose of this study was to clarify MIH prevalence rates and to consider potential regional differences throughout Japan.

methodsA total of 4496 children aged 7-9 years throughout Japan were evaluated in this study. MIH prevalence rates among children were evaluated in eight regions throughout Japan. A child's residence was defined as the mother's residence during pregnancy. The localization of demarcated opacities and enamel breakdown was recorded on a standard code form using a guided record chart. Logistic regression analysis was used to evaluate whether MIH prevalence rates differed among age groups, sex, and regions.

resultsThe overall prevalence of MIH in Japan was 19.8%. The prevalence of MIH was 14.0% in the Hokkaido region, 11.7% in the Tohoku region, 18.5% in the Kanto Shin-Etsu region, 19.3% in the Tokai Hokuriku region, 22.3% in the Kinki region, 19.8% in the Chugoku region, 28.1% in the Shikoku region, and 25.3% in the Kyushu region. These regional differences were statistically significant. Moreover, MIH prevalence rates decreased with age. No significant sex differences in MIH prevalence rates were demonstrated.

conclusionsTo our knowledge, this is the first MIH study carried out in several regions throughout Japan. Regional differences existed in MIH prevalence rates; particularly, MIH occurred more frequently in children residing in southwestern areas than those in northeastern areas of Japan.

Indexed as

ChildDental Enamel HypoplasiaFemaleHumansJapanMalePrevalenceMolar incisor hypomineralizationPrevalence ratesRegional differences

Identifiers

PMID30382812
PMCPMC6211451

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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.