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  2. TMU Publications / 北醫出版品
  3. .博碩士學位論文
  4. .94學年度
  5. 可注射式聚乳酸/幾丁聚醣/非晶型磷酸鈣牙周再生阻隔材之活體評估
 
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可注射式聚乳酸/幾丁聚醣/非晶型磷酸鈣牙周再生阻隔材之活體評估

Other Title
In Vivo Study of Injectable PLA/Chitosan/ACP GTR Barrier
Type
thesis
Date Issued
2006
Author(s)
詹進忠
Advisor
林哲堂
李勝楊
楊正昌
Subjects
系所名稱:牙醫學系碩博士班
Abstract
基於幾丁聚醣具有抗菌、縮短傷口癒合時間、及增加骨生成速率之特點,本研究之目的在以動物試驗評估本實驗室發展的可注射式聚乳酸/幾丁聚醣/非晶型磷酸鈣(PLA/chitosan/ACP)引導組織再生阻隔材對牙周治療的效果。在兩組動物試驗中,第一組用4隻米格魯犬,從牙釉牙堊質聯合(CEJ)處往下製造5 mm齒槽骨上牙周組織缺損(supra-alveolar periodontal defects),將可注射式之PLA/chitosan/ACP、PLA/doxycycline、PLA或Atrisorb?填入缺損區域中固化後縫合,另以不填入材料當控制組,8週後評估其對齒槽骨和牙堊質再生之影響。另ㄧ組則以2隻米格魯在齒槽脊中製造出4 x 5 mm的兩面骨缺損(two-wall intrabony defects),以去礦化冷凍乾燥同類骨移植體(demineralized freeze-dried bone allograft, DFDBA)為支架,將可注射式之PLA/chitosan、PLA/doxycycline、Atrisorb?阻隔材填入缺損區域,另以不填入任何材料和只填入DFDBA為控制組,分別在4週跟12週評估結合DFDBA為支架之可注射式再生阻隔材對牙周再生的影響。結果顯示不加DFDBA的測試發現齒槽骨和牙堊質的再生有限;添加DFDBA手術後12週則全部都有齒槽骨再生現象。綜合以上觀察,可注射式聚乳酸/聚丁聚醣/非晶型磷酸鈣再生阻隔材在配合DFDBA的應用下,可阻擋牙齦上皮細胞向牙根尖生長,並可觀察到齒槽骨之再生,具有良好之組織再生效果。
URI
https://203.71.86.71/handle/123456789/12276
https://hdl.handle.net/11296/p7z9d6
File(s)
No Thumbnail Available
Name

C0178870.pdf

Size

9.71 MB

Format

Adobe PDF

Checksum

(MD5):a5f1eb19e3411fab96cb6e42bb6f74af

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