{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T16:41:44Z","timestamp":1779208904617,"version":"3.51.4"},"reference-count":50,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2021,6,11]],"date-time":"2021-06-11T00:00:00Z","timestamp":1623369600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Comm Dent Oral Epid"],"published-print":{"date-parts":[[2022,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>Daily toothbrushing behaviour is very effective for the prevention of early childhood dental caries (ECC), but is mostly dependent upon parental management. Intrapersonal association between lower toothbrushing frequency and depression is well known; however, the impact of maternal postpartum depression on child toothbrushing behaviour within the mother\u2010child dyad remains unknown. The aim of this study was to determine the association between the prevalence of maternal postpartum depression and lower toothbrushing frequency in children aged two years.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A secondary analysis of a data set from the Japan Environment and Children's Study was performed. A total of 104\u00a0062 fetuses were enrolled after obtaining informed written parental consent, in which 84\u00a0533 mother\u2010infant pairs were included after applying exclusion criteria. The Edinburgh Postpartum Depression Scale (EPDS) was used to evaluate maternal postpartum depression (a total score of \u22659 in EPDS) at one and six months postpartum. Indeed, the participants were classified based on the persistence of postpartum depression: \u2018Resilient\u2019 (no prevalence); \u2018Improving\u2019 (prevalence only at one month postpartum); \u2018Emergent\u2019 (prevalence only at six months postpartum); and \u2018Chronic\u2019 (prevalence at both time points). The association between postpartum depression and a toothbrushing frequency in children (the reference group: more than once per day, the low group: once per day, and the very\u2010low group: less than once per day) was examined using Poisson regression models with adjustments for maternal and child characteristics after multiple imputations for missing data.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The prevalence of maternal postpartum depression at one and six months postpartum was 13.9% and 11.4%, respectively; the proportions of each persistence group were 81.1% (\u2018Resilient\u2019), 7.5% (\u2018Improving\u2019), 5.0% (\u2018Emergent\u2019) and 6.4% (\u2018Chronic\u2019). Concerning children's toothbrushing frequency, 51.6% and 0.5% of participants self\u2010reported frequencies of once per day and less than once per day, respectively. The association of maternal postpartum depression with a lower toothbrushing frequency in children consistently had higher relative risks (RRs). However, these associations were weakened when adjusting for whether the child could self\u2010perform toothbrushing or whether this was done under parental supervision. A key result is that participants with persistent postpartum depression at both one and six month(s) postpartum showed the highest adjusted RRs (95% CI) for lower toothbrushing frequency in children (1.08 [1.04\u20101.12] with a decrease in children's toothbrushing frequency).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Maternal mental health provides valuable screening information for children with lower toothbrushing frequency for the purpose of preventing ECC.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cdoe.12672","type":"journal-article","created":{"date-parts":[[2021,6,12]],"date-time":"2021-06-12T03:28:41Z","timestamp":1623468521000},"page":"300-310","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Influence of maternal postpartum depression on children\u2019s toothbrushing frequency"],"prefix":"10.1111","volume":"50","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0116-3584","authenticated-orcid":false,"given":"Shinobu","family":"Tsuchiya","sequence":"first","affiliation":[{"name":"Department of Orthodontics and Speech Therapy for Craniofacial Anomalies Tohoku University Hospital Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7000-4547","authenticated-orcid":false,"given":"Masahiro","family":"Tsuchiya","sequence":"additional","affiliation":[{"name":"Department of Nursing Tohoku Fukushi University Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1134-0898","authenticated-orcid":false,"given":"Haruki","family":"Momma","sequence":"additional","affiliation":[{"name":"Department of Medicine and Science in Sports and Exercise Tohoku University Graduate School of Medicine Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3038-7202","authenticated-orcid":false,"given":"Ryoichi","family":"Nagatomi","sequence":"additional","affiliation":[{"name":"Department of Medicine and Science in Sports and Exercise Tohoku University Graduate School of Medicine Sendai Japan"},{"name":"Division of Biomedical Engineering for Health &amp; Welfare Tohoku University Graduate School of Biomedical Engineering Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takahiro","family":"Arima","sequence":"additional","affiliation":[{"name":"Department of Informative Genetics Environment and Genome Research Center Tohoku University Graduate School of Medicine Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2521-039X","authenticated-orcid":false,"given":"Nobuo","family":"Yaegashi","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Tohoku University Graduate School of Medicine Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0017-357X","authenticated-orcid":false,"given":"Kaoru","family":"Igarashi","sequence":"additional","affiliation":[{"name":"Department of Orthodontics and Speech Therapy for Craniofacial Anomalies Tohoku University Hospital Sendai Japan"},{"name":"Division of Craniofacial Anomalies Tohoku University Graduate School of Dentistry Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"the Japan Environment, Children\u2019s Study Group","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2021,6,11]]},"reference":[{"key":"e_1_2_11_2_1","first-page":"CD002278","article-title":"Fluoride toothpastes for preventing dental caries in children and adolescents","author":"Marinho VC","year":"2003","journal-title":"Cochrane Database Syst Rev"},{"key":"e_1_2_11_3_1","first-page":"59","article-title":"Policy on early childhood caries (ecc): Classifications, consequences, and preventive strategies","volume":"39","author":"Pediatrics. 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