[Histological studies on the healing of mandibular osteotomies in the dog following stable osteosynthesis with the cold polymerizing polymethylmethacrylate "Kallokryl K"].

The disadvantages of methods of accomplishing stable osteosynthesis of mandibular fractures are described and the possibilities of jacketing the fragments with Kallokryl K plastic material, which is a cold-polymerizing polymethyl methacrylate, pointed out. After six months from the surgical operation, the healing under Kallokryl K was clinically and histologically evaluated on canine mandibles subjected to osteotomy and with the periosteum removed from the lower jaw bone. The reaction of both soft tissue and bone to the plastic material attached thereto was also evaluated. The results are discussed in the light of what is presently known about primary and secondary bone healing.