Journal of implantology and applied sciences ISSN:2765-7833(Print) 2765-7841(Online) 대한구강악안면임플란트학회지

Histologic observation was done about the tissue changes around the plasma-sprayed titanium dental implants, which were surgically placed and osseointegrated into the canine alveolar bone ridge for distraction osteogenesis of the mandible. This experiment was designed to find the possibility of the osseointegrated endosseous implants for their usage of intraoral distraction osteogenesis of the mandible. 14 commercial titanium dental implants, which were attached with the upper component of specially-made distraction device, were surgically placed into the edentulous alveolar ridge of 6 adult mongrel dogs weighed about 15 Kg. The dogs were sacrificed at postoperative 5, 10, 15, 20, 25, 30 days. Just after the mandibular specimens were cut, they were fixed in the 10% buffered formalin solution. After fixation they were observed grossly, and were cut into the bone blocks including each bone block. After the bone blocks were decalcified with the 5% nitric acid solution, each implant fixtures were removed. After each blocks were cut into 5 micrometer thickness specimen hematoxylin-eosin and modified Masson’s Trichrome stains were done. The stained specimens were observed under the light microscope. The results were as follows: 1. Osseointegrated status of the endosseous dental implants remained and functioned as an anchorage during the distraction forces were applied. 2. The osseointegrated dental implant fixtures might move along the distraction line during distraction period. 3. So, it is suggested that the endosseous dental implants can be used as an anchorage for intraoral mandibular distraction device.