[Development of dental tissues innervation in primary teeth. Experimental study on dogs].

In this work it was studied the innervation of pulp-dentin in primary premolars on experimental - dogs of 15, 35, 55 days old, with the aid of stainings Alcian blue/PAS and Bielschowsky. On 15 days old experimental dogs there were seen nerve fibres subodontoblastically. On 35 days old experimental dogs nerve fibres were directed towards the odontoblasts, there were also seen neural loops subodontoblastically and terminal nerve fibres on the exterior surface of the vessels. On 55 days old experimental dogs there was seen a great number of argyrophilic fibres in the district of the relapse of the dentine and pulp.