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  2. .TMU Publications / 北醫出版品(教師升等著作 / 教學實踐 / 學位論文)
  3. .博碩士學位論文
  4. 111學年度
  5. 以微型電腦斷層評估奈米鑽石根管沖洗液搭配音波盪洗 對移除硬組織碎屑之效果
 
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以微型電腦斷層評估奈米鑽石根管沖洗液搭配音波盪洗 對移除硬組織碎屑之效果

Other Title
Micro-CT evaluation of nano-diamond irrigants with sonic agitation systems on hard-tissue debris removal
Type
thesis
Date Issued
2023-06-19
Author(s)
汪寧
Advisor
謝松志 ; 黃豪銘
Subjects
系所名稱:牙醫學系碩士班
Description
學位別:碩士
語文別:中文
口試委員:謝松志 HSIEH, SUNG-CHIH;黃豪銘 HUANG, HAW-MING;張煥正 CHANG, HUAN-CHENG;楊正昌 YANG, JEN-CHANG;林伯彥 LIN, BO-YAN
授權範圍:網際網路,開放日期為2023-07-25
Abstract
移除根管內的感染微生物是成功牙髓治療不可或缺之條件,但根管系統複雜多變,單靠金屬器械的清潔擴大仍有許多空間無法觸及,甚至會殘留許多硬組織碎屑積聚在細小的分支與狹縫,抵禦消毒劑的進入並庇護微生物生長。目前主要仰賴乙二胺四乙酸(EDTA)搭配各式沖洗工具去除硬組織碎屑,但EDTA長時間沖洗會導致牙本質的物理性質下降,並削弱次氯酸鈉的抗菌能力。本研究團體已完成奈米鑽石沖洗液對去除管壁上塗抹層之研究,結果顯示奈米鑽石沖洗液在音波與超音波的輔助下具有去除塗抹層之能力,因此本研究欲更進一步探究奈米鑽石是否有移除硬組織碎屑之能力。實驗方法為挑選40個下顎第一大臼齒與第二大臼齒具有狹部之近心牙根,篩選狹部型態為I型或III型之根管樣本,經旋轉金屬器械擴大後平均分派至四個沖洗組別:奈米鑽石沖洗液搭配音波盪洗、EDTA搭配音波盪洗、次氯酸鈉搭配音波盪洗,以及次氯酸鈉搭配注射針頭沖洗。以微型電腦斷層掃描分析(解析度:9 µm),統計方法使用ANOVA檢定,顯著性水平設定為0.05。研究結果顯示,音波盪洗移除根管硬組織碎屑的能力優於傳統的注射針頭沖洗(p < 0.05)。EDTA搭配音波盪洗和奈米鑽石沖洗液搭配音波盪洗的碎屑減少率(分別為68.9% 和68.0%)高於次氯酸鈉聲波震盪和次氯酸鈉注射針頭沖洗(分別為43.4% 和13.7%)(p < 0.05)。在靠近根尖的區域,奈米鑽石沖洗液展現了比EDTA更集中和穩定的效果。這些結果表明,奈米鑽石沖洗液可能成為一種新型的根管沖洗液,在牙科治療的臨床應用潛力可期。
URI
https://handle.ncl.edu.tw/11296/m8dyqa
https://203.71.86.71/handle/123456789/10454

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