ArticleChildren (Basel, Switzerland)2023
Timing of Primary Tooth Eruption in Infants Observed by Their Parents.
Article in Children (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 3 citations in OpenAlex.
- The Relationship Between Neonatal and Maternal Factors and the Timing of Primary Tooth Eruption in Preterm Infants: An Observational Study in Iran.Health science reports · 2026Article
- Salivary Albumin and Alkaline Phosphatase in Infants: Exploring the Link Between Early Dental Development and Biomarkers.European journal of dentistry · 2026Article
- Timing of primary maxillary tooth eruption in preterm compared to term infants: a retrospective longitudinal cohort study.BMC oral health · 2026Observational
- Elucidation of Factors Affecting Anterior Occlusion in Primary Dentition Based on the Japan Environment and Children's Study.Children (Basel, Switzerland) · 2025Article
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9 authors at 1 institution in 1 country.
Funding
Abstract
backgroundThe timing of primary teeth eruption is a visible indicator of infant physical growth other than body weight or height. It also reflects neurological integrity and development as well as nutrition, socioeconomic state, or underlying diseases. Therefore, the timing of primary teeth eruption is one of the major concerns for parents in health checkups for infants and children. However, the detailed developmental timing of teeth eruption differs depending on the survey methodology, country, or generation. We hypothesized that the timing of primary teeth eruption differs between the medical checkup by dentists and the daily records by parents.
methodsWe conducted a questionnaire survey on the date of eruption of primary teeth as an adjunct study among Miyagi Regional Center participants in the Japan Environment and Children's Study (JECS), a large-scale birth cohort study. A total of 1695 responses (3793 participants) were analyzed.
resultsThe median ages of eruption were 7.1 months (male) and 7.6 months (female) for mandibular primary central incisors, 8.7 months (male) and 9.2 months (female) for maxillary primary central incisors, 10.0 months (male) and 10.3 months (female) for maxillary primary lateral incisors, and 10.4 months (male) and 10.8 months (female) for mandibular primary lateral incisors, which were earlier than the reported timings based on dental check-ups. Comparing the eruption time of preterm and term infants, the eruption time was earlier in preterm infants in the corrected ages.
conclusionsThe eruption timing observed and described by the parents is earlier than that examined by dentists at regular check-ups. In addition to examining the primary teeth eruption of full-term birth children, we also examined that of preterm birth children because of the increasing number of premature births. To the best of our knowledge, this is the first report from a large cohort study to clarify the eruption time of primary teeth monitored by parents.
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