TRANSPLANTATION OF HUMAN TOOTH GERMS TO LOWER ANIMALS

I. RELATION TO THE HOST

¹ Department of Pathology, Yale University School of Medicine, New Haven, Conn.

1. Transplants of human tooth germs were usually accepted by the hosts in the anterior chamber of the eye and the axilla.

2. Stromatization and vascularization of transplants showed this relation to the hosts.

3. Connective tissue capsules gradually surrounded the whole transplant.

4. Pulpal areas were always invaded with connective tissue when they were disrupted, or they did not retain their anatomic relationship to the rest of the transplant.

5. Cords and clusters of epithelial cells formed, usually from the outer enamel epithelial layer and stratum intermedium.