片側多数歯抜去後のサル下顎骨の病理組織学的変化

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The healing process of the alveolar region following the tooth extraction has been studied extensively in animals. The histopathological changes of the other region in the mandible, however, has not been investigated in detail after the teeth extraction. Therefore the mandible were observed in the region of the alveolus, bone mallow, mandibular canal and the lower ridge on 5th, 10th, 15th, 30th, 60th, 90th and 120th days after the extraction of <|1∿8>^^^-. The results were as follows : 1. The interdental septum in the region of <|456>^^^- had already made the new bone in the 5th days after the extraction. The new bone formation in the region of <|123>^^^- and <|78>^^^- were observed in the 10th days after the extraction. The order on the new bone width is the region of <|456>^^^-, <|78>^^^- and <|123>^^^-. These findings were not observed after 60th days. The formation of the Haversian canals and the lamella bone were observed in 120th days after the extraction. 2. In the early stage after the extraction, the new bone formation was observed on the ridge of the spongiose bone in the bone mallow. Especially, its finding was remarkable on the ridge of the spongiose bone. In the region of <|456>^^^-, the new bone was connected between the spongiose bone and the other one near by. 3. The new bone formation of the outside lower ridge of the mandibular canal was observed from 5th to 60th days after the extraction. And from 60th to 120th days, its finding was also observed on the inside lower ridge. 4. From 5th days after the extraction, the fat cells in the upside bone mallow to the mandibular canal were not observed, and the young fibroreticulate tissue and the inflammatory cells were filled up. The fat cells were gradually increased. The 30th days after the extraction, the bone mallow was completely healed toward the control findings. 5. In the early stage after the extraction, the addition of the new bone was observed in the lower lingual ridge of the mandible. Its findings were remarkable in the premolar and the molar region. 6. It was remarkable to process the process the new bone formation in the alveolus, bone mallow and the mandibular lower ridge of <|456>^^^-. The next was <|78>^^^-, and <|123>^^^- region. 7. It was considerable on this experimental study that the mandible after the teeth loss was reinforced remarkably with the addition of the new bone.
九州歯科学会の論文
1983-10-25

片側多数歯抜去後のサル下顎骨の病理組織学的変化

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