Sub-threshold Effects of Maternal Alcohol Consumption on Craniodental Development
Fluctuating dental asymmetry was used as an indicator of developmental stress in a sample of 20 children exposed to mild levels of maternal alcohol abuse. To probe the differences in timing of the insult, casts were selected in the mixed dentition stage, with juxtapositioning of the second deciduous molar and the first permanent molar. Fluctuating asymmetry was found to be significantly elevated in the deciduous dentition when compared to normal controls, suggesting destabilization during 3 to 5 months intra utero. The finding that the levels of fluctuating asymmetry did not differ between mild and severe abusers of ethanol suggests that there might not be a dose response to transplacental exposure to ethanol.
KeywordsFluctuate Asymmetry Fetal Alcohol Syndrome Human Biology Developmental Stability Maternal Alcohol
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