Secular changes in eruption of primary teeth in Chinese infants and young children from three national cross-sectional surveys

Abstract The eruption of primary teeth is a basic event during physical development of children, which is affected by heredity and environment. This study aimed to analyze the changes in primary teeth eruption among Chinese children with social development. A total of 249,264 healthy children under...

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Main Authors: Ya-qin Zhang, Xin-nan Zong, Hua-hong Wu, Hui Li
Format: Article
Language:English
Published: Nature Portfolio 2024-04-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-024-59044-0
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author Ya-qin Zhang
Xin-nan Zong
Hua-hong Wu
Hui Li
author_facet Ya-qin Zhang
Xin-nan Zong
Hua-hong Wu
Hui Li
author_sort Ya-qin Zhang
collection DOAJ
description Abstract The eruption of primary teeth is a basic event during physical development of children, which is affected by heredity and environment. This study aimed to analyze the changes in primary teeth eruption among Chinese children with social development. A total of 249,264 healthy children under 2 years were extracted from the 1995, 2005, and 2015 National Survey on the Physical Growth and Development of Children in Nine Cities of China. Their primary teeth were examined and percentiles of primary teeth eruption age were calculated by probit analysis. The median primary teeth eruption age were 6.8 months, 6.7 months, 6.6 months in 1995, 2005 and 2015. Primary teeth eruption age of boys was 0.2 months, 0.3 months, 0.3 months earlier than that of girls in 1995, 2005 and 2015. Primary teeth eruption age was the earliest in children from northern region and was the latest in children from southern region, and this regional difference did not change over time. These findings suggest that primary teeth eruption age slightly advanced with social development, and their gender difference and regional difference have always existed, which supplied some data for understanding the secular trend of primary teeth development in stomatology, pediatrics, anthropology, and other related fields.
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spelling doaj.art-56187f46a833458391a47dd22e2c2b922024-04-14T11:14:07ZengNature PortfolioScientific Reports2045-23222024-04-011411910.1038/s41598-024-59044-0Secular changes in eruption of primary teeth in Chinese infants and young children from three national cross-sectional surveysYa-qin Zhang0Xin-nan Zong1Hua-hong Wu2Hui Li3Department of Growth and Development, Capital Institute of PediatricsDepartment of Growth and Development, Capital Institute of PediatricsDepartment of Growth and Development, Capital Institute of PediatricsDepartment of Growth and Development, Capital Institute of PediatricsAbstract The eruption of primary teeth is a basic event during physical development of children, which is affected by heredity and environment. This study aimed to analyze the changes in primary teeth eruption among Chinese children with social development. A total of 249,264 healthy children under 2 years were extracted from the 1995, 2005, and 2015 National Survey on the Physical Growth and Development of Children in Nine Cities of China. Their primary teeth were examined and percentiles of primary teeth eruption age were calculated by probit analysis. The median primary teeth eruption age were 6.8 months, 6.7 months, 6.6 months in 1995, 2005 and 2015. Primary teeth eruption age of boys was 0.2 months, 0.3 months, 0.3 months earlier than that of girls in 1995, 2005 and 2015. Primary teeth eruption age was the earliest in children from northern region and was the latest in children from southern region, and this regional difference did not change over time. These findings suggest that primary teeth eruption age slightly advanced with social development, and their gender difference and regional difference have always existed, which supplied some data for understanding the secular trend of primary teeth development in stomatology, pediatrics, anthropology, and other related fields.https://doi.org/10.1038/s41598-024-59044-0InfantsPrimary teethEruption ageSecular changes
spellingShingle Ya-qin Zhang
Xin-nan Zong
Hua-hong Wu
Hui Li
Secular changes in eruption of primary teeth in Chinese infants and young children from three national cross-sectional surveys
Scientific Reports
Infants
Primary teeth
Eruption age
Secular changes
title Secular changes in eruption of primary teeth in Chinese infants and young children from three national cross-sectional surveys
title_full Secular changes in eruption of primary teeth in Chinese infants and young children from three national cross-sectional surveys
title_fullStr Secular changes in eruption of primary teeth in Chinese infants and young children from three national cross-sectional surveys
title_full_unstemmed Secular changes in eruption of primary teeth in Chinese infants and young children from three national cross-sectional surveys
title_short Secular changes in eruption of primary teeth in Chinese infants and young children from three national cross-sectional surveys
title_sort secular changes in eruption of primary teeth in chinese infants and young children from three national cross sectional surveys
topic Infants
Primary teeth
Eruption age
Secular changes
url https://doi.org/10.1038/s41598-024-59044-0
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AT huahongwu secularchangesineruptionofprimaryteethinchineseinfantsandyoungchildrenfromthreenationalcrosssectionalsurveys
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