A little curiosity goes a long way.

In 20 extracted baby teeth from children with early childhood caries, the preterm group had thinner prenatally formed enamel, lower calcium and phosphorus concentrations, and pitted, eroded surfaces with more widely distributed enamel hypoplasia than the full-term group. The researchers suggested these enamel defects could be a possible risk factor for early childhood caries.

Among 140 analyzed eyes, the researchers identified four shape patterns: primarily spherical, regularly toric, asymmetric, and irregularly spaced toric. Only 8 eyes (5.7%) were primarily spherical; the largest group, 57 eyes (40.7%), had asymmetric depressions or elevations.