Erschienen in:
01.12.2015 | Original Article
Influence of metabolic-linked early life factors on the eruption timing of the first primary tooth
verfasst von:
Carolina Un Lam, Chin-Ying Stephen Hsu, Robert Yee, David Koh, Yung Seng Lee, Mary Foong-Fong Chong, Meijin Cai, Kenneth Kwek, Seang Mei Saw, Keith Godfrey, Peter Gluckman, Yap Seng Chong
Erschienen in:
Clinical Oral Investigations
|
Ausgabe 8/2016
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Abstract
Aim
Early eruption of permanent teeth has been associated with childhood obesity and diabetes mellitus, suggesting links between tooth eruption and metabolic conditions. This longitudinal study aimed to identify pre-, peri- and postnatal factors with metabolic consequences during infancy that may affect the eruption timing of the first primary tooth (ETFT) in children from an ethnically heterogeneous population residing within the same community.
Material and methods
Participants were recruited (n = 1033) through the GUSTO (Growing Up in Singapore Towards healthy Outcomes) birth cohort (n = 1237). Oral examinations were performed at 3-month intervals from 6 to 18 months of age. Crude and adjusted analyses, with generalized linear modelling, were conducted to link ETFT to potential determinants occurring during pregnancy, delivery/birth and early infancy.
Results
Overall mean eruption age of the first primary tooth was 8.5 (SD 2.6) months. Earlier tooth eruption was significantly associated with infant’s rate of weight gain during the first 3 months of life and increased maternal childbearing age. Compared to their Chinese counterparts, Malay and Indian children experienced significantly delayed tooth eruption by 1.2 and 1.7 months, respectively.
Conclusions
Infant weight gain from birth to 3 months, ethnicity and maternal childbearing age were significant determinants of first tooth eruption timing. Early life influences can affect primary tooth development, possibly via metabolic pathways.
Clinical relevance
Timing of tooth eruption is linked to general growth and metabolic function. Therefore, it has potential in forecasting oral and systemic conditions such as caries and obesity.