Abstract
Employing the method of Takamatsu & Gomori, histochemical investigations were conducted on the phosphatase reaction of pulps of dogs under experimental tuberculosis.
1) The pulps of dogs could not be recognized of tuberculous findings pathologically, irrespective of methods of inoculation of tuberculosis bacillus.
2) In case of abdominal inoculation, hyperemia and extension of the vessels of pulps were observed. Phosphatase reaction in the pulps of molars (5mg inoculation was most intense in their infiltrating cells, vessel walls, odontblast. In other cases, phosphatase reaction was more intense than normal pulp.
3) In case of application to pulp, abscess of pulp and ulcer, infiltration cells, extension of blood vessels, pulp hyperemia were observed.
Phosphatase reaction was most intense in the abscess, surrounding infiltration cells especially in polynuclear leucocytes. The phosphatase reaction of odontblasts was in different degree by locality.
4) In case of abdominal inoculation, prominent difference depended on the quantity of tuberculosis bacillus applied. Phosphatase reaction was more intense in molars pulp than in incisors pulp. In cases of application to pulp prominent difference was not observed between incisors and molars.
5) In cases of abdominal inoculation and application to pulp phosphatase reaction was more intense than in normal pulp, and the intensity seemed to correspond with the grade of inflammation of the pulp.
