If the enamel is repaired at this point, the white spots could disappear as the tooth regains lost minerals. Stage 2: Cavity Formation and Enamel Decay If the tooth enamel is not repaired when white ...

Amnioblasts multiply rapidly and form a simple epithelial layer on the inner surface of the amniotic cavity. This epithelial layer forms the amniotic membrane. As pregnancy progresses, the amniotic ...