アパタイトブラスト処理インプラント周囲における新生骨の結晶性の評価

DOI 被引用文献4件 参考文献23件
  • 諏訪 武利
    日本大学大学院松戸歯学研究科総義歯学専攻
  • 寒河江 登志朗
    日本大学松戸歯学部組織・発生・解剖学講座 日本大学松戸歯学部口腔顎顔面インプラント学講座
  • 中田 浩史
    日本大学松戸歯学部顎口腔義歯リハビリテーション学講座 日本大学松戸歯学部口腔顎顔面インプラント学講座
  • 加藤 仁夫
    日本大学松戸歯学部口腔科学研究所 日本大学松戸歯学部口腔顎顔面インプラント学講座
  • 小林 喜平
    日本大学松戸歯学部顎口腔義歯リハビリテーション学講座 日本大学松戸歯学部口腔顎顔面インプラント学講座

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タイトル別名
  • Crystallinity Evaluation of New Bone around Hydroxyapatite-blasted Implants

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The aim of this study was to qualify and differentiate between the new bones formed around hydroxyapatite-blasted implants and the cortical bone.<br/> Evaluation of bone substance was carried out using non-decalcified tibia after 1, 2 and 4 weeks implantation by polarized light microscopy, parametric X-ray radiation (PXR) and position sensitive proportional countermicro-X-ray-diffractometer (PSPC-Micro-XRD).<br/> Several parts of remarkably high birefringence in the new bone were revealed by the polarized light microscopy. The new bones formed around implants were compared among 1, 2 and 4 weeks after implantation: the volume of the new bone increased with time, and the Haversian lamella appeared after 4 weeks. In PXR,the cortical bone was generally observed to be radiopaque. The attached layer of the newly formed bone covering the implant was observed to be radiopaque, and its radiopacity was generally lower but similar to that of the compact bone. The full width at half maximum (FWHM) value of apatite (Ap) 002 in micro-XRD charts showed that crystallinity of the new bones increased from 1 to 2 weeks and slightly increased from 2 to 4 weeks. In this study, polarized light microscopy revealed the presence of new bones which were hardly shown by PXR. PXR showed calcification of new bone. Thus, the new bones formed around implants can be evaluated more exactly by combining these three analytical techniques.

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