[Light microscopic presentation of the morphological behavior of the nerves of deciduous teeth during tooth exfoliation deciduous and after loss of the dentition].

Structural changes in the nerve can hardly be demonstrated in nerve sections located intradentally, i.e. away from the area of tooth resorption. pseudohypersegmentation, however, is found intradentally in nerve sections of the radical pulp close to the resorption area. Serious lesions of the nervous substance are found extradentally, in the direct neighborhood of the erupting permanent tooth. If the deciduous tooth was lost more than 12 months ago, intraosseously the final stage of physiological degeneration is reached.