イヌ下顎骨窩洞への焼成歯根細片充填後の組織所見

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  • Histological Investigation after Filling of Baked Dental Root Tips in the Cavity of Dog's Mandibular Bone

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Three adult dogs were used in this experiment to investigate the usefullness of baked dental root tips for bone replacement materials. In the experimental method, baked dental root tips (800℃,20 minutes) of the human devitalized teeth and hydroxyapatite (HA) granules were respectively filled in the mandibular bone of the dog. Tissue specimens were taken 1, 3 and 5 weeks post operatively for observation under the light microscope.<br/> 1. In the case of filling of baked dental root tips, osseous addition occured 3 weeks after operation. In the case of filling of HA granules, osseous addition occured 1 week after operation.<br/> 2. In the both cases, osseous additoion were incessantly observed 5 weeks after operation.<br/> 3. The baked dental root tips may be useful as bone replacement materials.<br/>

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