The proposed mechanism by which a calcium hydroxide preparation initiates secondary dentin formation in direct pulp cappings is by
stimulating fibroblasts to elaborate nuclei of the first order.
releasing calcium ions.
stimulating differentiated ameloblasts to lay down dentin.
stimulating undifferentiated cells of the tissue to differentiate into odontoblasts
1 explanations
oneguy
When performing a direct pulp capping, calcium hydroxide produces coagulation necrosis at the contact surface of the pulp. The underlying tissue (undifferentiated cells) then differentiates into odontoblasts, which elaborate a matrix in about 4 weeks. This results in the formation of a reparative dentin bridge, caused by the irritating quality of the highly alkaline calcium hydroxide, which has a pH of 11 to 12.
oneguy