Human ameloblasts die before tooth eruption

Human ameloblasts die before tooth eruption; therefore there is no possibility for secondary physiological enamel production and restoration/ regeneration of the worn out enamel layer. As withother crystalline structures, worn out enamel sites undergo spontaneous mild remineralization by incorporating calcium and phosphate ions that are present in the mouth. This process occurs at a very slowrate, however, and is not be able to compensate for the enamel loss due to bacterial activity and acids.
Fluorides augment "natural" enamel remineralization. In contrast to ameloblasts, odontoblastsremain active throughout life. After complete formation of the root, they very slowly lay down secondary dentine; consequently, as the animal ages, the pulp cavity of the teeth continually growssmaller, Of high clinical interest is the fact that another tye, the tertiary dentin, is produced in response to certain stimuli, such as tooth decay, attrition and incidental or intentional trauma.There are two types of tertiary dentine; reactionary, laid down by the living odontoblasts, and restorative, produced by progenitor pulp cells. The list of teeth diseases is considerably supplemented bythe frequent congenital abnormalities, such as odontia, amelogenesis imperfecta, supernumerary teeth, etc.


Ameloblastos humanos mueren antes de la erupción de los dientes; por lo tanto, no hayposibilidad para la producción de esmalte fisiológica secundaria y la restauración / regeneración de la capa de esmalte desgastado. Al igual que con otras estructuras cristalinas, que se llevan a cabolos sitios de esmalte se someten a la remineralización leve espontánea mediante la incorporación de iones calcio y fosfato que están presentes en la boca. Este proceso se produce a un ritmo muy lento,sin embargo, y no se sea capaz de compensar la pérdida de esmalte debido a la actividad bacteriana y ácidos.
Los fluoruros aumentan la remineralización del esmalte "natural". A diferencia de los...