Severe malnutrition does not significantly delay the timing of human tooth formation
In short: Researchers who studied children in Sudan found that severe malnutrition has little to no measurable effect on the timing of tooth development. By comparing children with normal nutritional status to those suffering from significant weight and height deficiencies, the study revealed that dental maturation remains remarkably consistent despite extreme environmental conditions.
This finding suggests that teeth possess a high degree of biological stability, remaining insulated from nutritional stresses that might otherwise affect other maturing body systems. The study used a cross-sectional design to examine the mandibular left permanent teeth of children aged 2 to 22.
The researchers compared 474 malnourished children against 799 with normal nutritional status. A limitation of this study is its cross-sectional design, which provides a snapshot of development rather than tracking individual growth over time.
Why it matters: Teeth are remarkably resilient to nutritional stress, making them stable biological markers even in harsh environments.
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Sources
- Source: Research: Elamin and Liversidge (2013). Malnutrition Has No Effect on the Timing of Human Tooth Formation. PLoS ONE. · cc-by
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