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  5. 新型人工牙根系統於高扭力承載下之有限元素分析與生物力學研究
 
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新型人工牙根系統於高扭力承載下之有限元素分析與生物力學研究

Other Title
Finite element analysis and biomechanical research on novel dental implant system under high-torque loading
Type
thesis
Date Issued
2013-01-13
Author(s)
李俊儒
Advisor
洪景明
Subjects
系所名稱:醫療器材產業碩士專班
Description
學位別:碩士
語文別:中文
指導教授:洪景明
共同指導教授:
口試委員:邱錫榮;黃瓊芳
中文關鍵字:人工牙根;有限元素分析;扭力試驗
Abstract
本研究以有限元素分析方法探討二件式人工牙根於不同扭力作用下,牙科植體與齒槽骨之間的影響及應力分布情形,並選用直徑3.5 mm之國維人工牙根系統進行模擬分析以及扭力試驗。結果顯示同一長度之牙科植體與齒槽骨會隨著扭力增加,而使得等效應力增加,研究中以設定最高扭力值為75 N-cm之分析結果顯示,以長度8.8 mm之植體表現出的等效應力值最大為678.2 MPa,但其最大等效應力值仍小於鈦金屬之降伏強度,能確保材料不會產生形變現象;長度13.5 mm以上尺寸之牙科植體於等效應力表現則明顯比最大等效應力降低51.88 %以上。在實測扭力試驗之結果顯示國維人工牙根(???n3.5 mm × L13.5 mm)之扭斷強度為217.39 ± 78.44 N-cm,由模擬分析結果同樣可證明國維人工牙根能有效承載高扭力,且不影響植體周圍齒槽骨之結構。
URI
https://203.71.86.71/handle/123456789/14001

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