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Response of bone and enamel formation to nutritional supplementation and morbidity among malnourished Guatemalan children
Author(s) -
May Richard L.,
Goodman Alan H.,
Meindl Richard S.
Publication year - 1993
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330920104
Subject(s) - enamel paint , medicine , dentistry , enamel hypoplasia , bone development , bone formation , ossification , mineralization (soil science) , physiology , surgery , biology , ecology , soil water
The effects of changes in nutritional and health status upon bone and enamel development are examined in a sample of 63 rural Guatemalan children (24 females, 39 males). The number of ossified hand‐wrist centers at 3 years and the number of linear enamel hypoplasias (LEH) in ∼0–3 year zones of developing teeth were used to monitor the response of bone mineralization and enamel matrix formation to illness and nutritional supplementation. Numbers of ossified centers and LEH were compared across sex, supplementation, and morbidity groups. Enamel matrix secretion responded positively to increased supplementation. Children who received less than 34.25 kcal/day in supplement had more LEH than those who received more supplement. No differences in ossification status were found between supplementation groups. These data suggest that enamel formation may be more sensitive to changes in nutritional status than is bone mineralization. Disruptions of bone and enamel formation were both associated with frequent illness. Children who were ill more than 3.6% of the time had more LEH and fewer ossified hand‐wrist centers than children who were less frequently ill. Conclusions regarding relative environmental sensitivity must take into account the specific aspects of dental and skeletal development examined. © 1993 Wiley‐Liss, Inc.