The use of dental criteria for estimating postnatal survival in skeletal remains of infants

Separate cemeteries and/or burial loci for infants have been variously interpreted as reflecting segregation by age, infanticide or even child sacrifice. Attempts to distinguish between these factors rely primarily on the age distribution found. Currently long bone length is the most commonly used method for fetuses and infants in the perinatal period, but its accuracy is affected by the inherent variation in size for age. We show here how to distinguish between death in the perinatal period and that occurring later in infancy through identification of the neonatal line in ground sections of deciduous teeth. The methodology is reviewed and applied to validate estimations of postnatal survival for infant remains recovered from two archaeological sites in Israel.