Associations of maternal, perinatal and postnatal factors with the eruption timing of the first primary tooth

Scientific Reports
Huaying WuYaming Chen

Abstract

We recruited 1296 mothers in their first trimester from the Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University between May 2014 and September 2015 to investigate the associations of maternal, perinatal and postnatal factors with the eruption timing of the first primary tooth (ETFPT) in a Chinese population. We collected maternal demographic information and clinical data during the perinatal and postnatal period, and oral examinations of the infants were performed by a doctor at 6, 9 and 12 months of age. Multiple regression analysis was used to identify significant explanatory variables for ETFPT. The mean age at eruption of the first primary tooth for all the infants was 6.82 ± 1.90 months. After adjustment for confounders, higher maternal childbearing age (β = 0.57; 95%CI = 0.13-1.02), female sex (β = 0.26; 95%CI = 0.07-0.52), and low birth weight (β = 0.98; 95%CI = 0.20-1.76) were significantly associated with delayed eruption of the first primary tooth, while macrosomia (β = -0.79; 95%CI = -1.30--0.28) was significantly associated with earlier eruption of the first primary tooth. Maternal childbearing age, infant sex and infant birth weight were significant determinants of ETFPT.

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Citations

Feb 20, 2020·American Journal of Physical Anthropology·Kathleen S PaulGrant C Townsend
Jun 12, 2020·European Journal of Orthodontics·Renato Araújo RibeiroMilton Santamaria
Feb 26, 2020·Acta Odontologica Scandinavica·Esther Carneiro RibeiroManuella Santos Carneiro Almeida
Jun 17, 2020·Integrative and Comparative Biology·Nidal KaragicC Darrin Hulsey

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