Long-term in-vivo effect of various restorative materials on enamel and dentin of primary molars.

Objective: To explore the long-term in-vivo effect of different dental restorative materials on the surrounding enamel and dentin, in primary molars.

Method And Materials: Sixteen naturally exfoliated primary molars restored with amalgam, compomer, and glass-ionomer cement were collected after 2 to 5 years of function in the mouth. Four intact molars served as control.

Enamel development in primary molars from children with familial dysautonomia.

Objectives: Familial dysautonomia (FD) is an autosomal recessive disorder, classified as a hereditary sensory and autonomic neuropathy type III, associated with growth defects affecting postnatal development. This study analysed prenatal and postnatal enamel development and postnatal calcification in upper second primary molars from FD children in comparison with healthy controls. The postnatal enamel of FD was also examined histologically for manifestation of growth insults.