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  5. 以透明質酸與骨粉促進骨再生之動物實驗研究
 
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以透明質酸與骨粉促進骨再生之動物實驗研究

Other Title
Animal study on bone healing improvement by combining hyaluronic acid and bone graft
Type
thesis
Date Issued
2016-06-13
Author(s)
張嫣蘭
Advisor
林哲堂
Subjects
系所名稱:牙醫學系碩博士班
Description
學位別:碩士
語文別:中文
指導教授:林哲堂
共同指導教授:
口試委員:黃豪銘;馮聖偉
中文關鍵字:透明質酸;牙本質粉;骨引導性質;動物實驗
英文關鍵字:Hyaluronic acid;Human dentin powder;Osteoconduction;Animal study
Abstract
透明質酸是脊髓動物體內天然的細胞外間質,因為生物相容性高,又不會引起免疫反應,因此被運用在美容手術、牙周病治療、和膝關節炎患者的支持療法等多種生物醫學領域的範疇中。近年來的實驗更指出透明質酸能影響到多種細胞表現,進而具備抗發炎,促進軟骨增生,和促進硬骨增生…等許多作用,除此之外,它本身具備良好的物理特質、具黏彈性、還有可注射性,能夠提供臨床使用的方便性。

然而,關於透明質酸混合骨粉的相關文獻非常稀少,因此本實驗的目的,是想要研究將傳統的HA-βTCP骨粉,以及牙本質粉與透明質酸混合之後,在動物身上的差異,以及對骨癒合的影響。實驗使用8隻12周大的紐西蘭兔,分別在其頭蓋骨處做出4個6 mm直徑大小的骨缺損區,並分成五個組別;分別是填入 HA-βTCP骨粉、HA-βTCP骨粉加透明質酸、牙本質粉、牙本質粉加透明質酸、還有不填入任何材料的控制組。實驗動物在二周和四周時分別犧牲,接著利用微電腦斷層攝影(Micro-CT)和組織學切片分析骨生成的狀況,並作統計分析。

實驗結果顯示,HA-βTCP骨粉和牙本質粉,無論是否與透明質酸混合使用,皆會促進兔子顱骨缺損區的骨癒合反應,並且在各組別中都沒有出現不良的癒合情況。將透明質酸混合骨粉材料使用時,能提供良好的骨引導性質,促進骨癒合,更能在多變的臨床情況下,提供醫師更便利的操作性。
URI
https://203.71.86.71/handle/123456789/57420

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