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Association of weight and height with timing of deciduous tooth emergence
Ashraf I Shaweesh1, Ola B Al-Batayneh2
1School of Dentistry and Health Sciences, Faculty of Science, Charles Sturt University, Wagga Wagga, New South Wales, 2678, Australia; Faculty of Dentistry, Jordan University of Science and Technology, PO Box 3030, Ramtha, Irbid, 22110, Jordan.
Insights
This study found that while both weight and height generally correlate with deciduous tooth emergence timing in children, weight has a more significant association with the emergence of specific teeth. These findings help in assessing normal tooth emergence in children with varying body sizes.
Area of Science:
- Pediatric Dentistry
- Anthropometry
- Developmental Biology
Background:
- Deciduous tooth emergence is a key developmental milestone in children.
- Variations in weight and height may influence the timing of tooth eruption.
- Understanding these associations can aid in clinical assessments.
Purpose of the Study:
- To investigate the relationship between children's weight and height and the timing of deciduous tooth emergence.
- To provide weight and height-specific data for assessing normal tooth emergence patterns.
Main Methods:
- A cohort of 1756 children (1-33 months) had their deciduous tooth emergence timing, weight, and height recorded.
- Children were categorized into weight (underweight, normal, overweight) and height (short, normal, tall) groups.
- Probit regression analysis was used to determine tooth emergence ages and compare them across groups.
Main Results:
- Deciduous teeth emerged earlier in children with higher weight and height, and later in those with lower measurements.
- A statistically significant association between weight and emergence timing was observed for canines, lateral incisors, and upper central incisors.
- No statistically significant association was found between height and the emergence timing of any deciduous teeth.
Conclusions:
- Weight demonstrates a stronger association than height with the emergence timing of specific deciduous teeth (canines, lateral incisors, upper central incisor).
- The study provides novel weight and height-specific data for deciduous tooth emergence.
- These findings can assist in evaluating normal tooth eruption timelines in children with atypical growth patterns.
Objectives:
The aim of this study was to associate weight and height with the timing of deciduous tooth emergence.
Methods:
1756 children, aged from 1 to 33 months (755 females and 1001 males) had been previously examined for the timing of deciduous tooth emergence and their weights and heights measured. Children were categorized into weight and height groups (underweight, normal, overweight, short stature, normal and tall stature). Probit regression analysis was used to calculate the ages at emergence of each deciduous tooth. Tooth emergence ages were compared pairwise across the weight and height groups.
Results:
The deciduous dentition emerged between 7.9-31.5, 7.8-29.6 and 6.3-26.5 months in the underweight, normal and overweight children, respectively. In the height groups, the ranges were 9.0-31.3, 7.4-27.0 and 6.7-24.3 in the short, normal and tall children, respectively. The extremes of weight and height were related to the times at deciduous tooth emergence where a substantial increase in weight or height was associated with earlier emergence, and vice versa. However, only canines, lateral incisors and upper central incisor showed statistically significant association with weight and none of the teeth exhibited statistically significant association with height. Moreover, no emergence sequence change was associated with weight and height.
Conclusions:
The present study provides the first weight and height- specific data on the timing of deciduous tooth emergence. Although both weight and height are generally associated with the timing of deciduous tooth emergence, weight shows a stronger association for canines, lateral incisors and upper central incisor. The findings will aid assessing normal emergence timing in children with variant weights and heights.
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