Abstract
The structure of pig mandibular bone was studied to provide base-line information for experimental implantation studies. The density of samples of bone, taken from the tooth-bearing part of the mandible provided overall information about bone structure, and microradiographs gave more detailed information about its distribution. A consistent pattern which was dependent on the type of bone structure established during growth was found. The rapid growth of the periosteum led to a porous structure, whereas a slowly-growing periosteum produced dense bone. On the other hand, endosteal bone formation nearly always produced porous bone which, in older animals, was frequently associated with Haversian remodelling. The premolar area of the adult mandible was probably less metabolically active than the bone in other regions and therefore provides the most suitable site for study of the bone response to endosseous implantation.
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