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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 單秋成(Chow-Shing Shin) | |
dc.contributor.author | Wei-Siang Jhuang | en |
dc.contributor.author | 莊偉翔 | zh_TW |
dc.date.accessioned | 2021-06-12T17:54:31Z | - |
dc.date.issued | 2011 | |
dc.date.submitted | 2011-08-09 | |
dc.identifier.citation | [1]蕭琮仁, 牙齒根管治療之鎳鈦旋轉器械完整性檢測與評估, 碩士學位論文, 國立台灣大學, 2004.
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/27052 | - |
dc.description.abstract | 提升切削效率和抗斷裂能力是鎳鈦旋轉器械的重要評估項目。一般鎳鈦根管器械是以連續旋轉的方式進行修型,根據文獻透過往復旋轉的模式,可以大幅提升其疲勞壽命和降低扭力破壞的發生,但對於根管銼的切削能力勢必會造成影響。因此本文針對鎳鈦根管器械在不同的往復旋轉角度下,利用本實驗室現有的切削實驗機台,評估往復旋轉對切削效率的影響。在評估切削效率上分為相同切削時間、相同切削路程下與疲勞壽命下的切削量這三個準則去比較。結果顯示往復旋轉在相同切削時間與相同切削路程下,切削效率與連續旋轉比較均下降,且往復旋轉的角度越小,切削量下降的愈多。但考量疲勞壽命下的切削量,則各往復旋轉角度切削量皆有提升,以往復旋轉90度的提升量為最多。
另外本文也改變小角度下的往復旋轉模式,讓往復旋轉起始點順時針增量特定角度,以提升切削的均勻性和切削效率。結果顯示在往復旋轉下,透過增量角度可以提升往復旋轉的切削效率。綜合考量在相同切削路程與疲勞壽命下的切削量,與連續旋轉比較,以往復旋轉90度增量31度具有最佳的切削效率。 | zh_TW |
dc.description.abstract | The purpose of this study was to investigate the cutting efficiency of Ni-Ti rotary instruments when used in reciprocating movement and continuous movement. Cutting efficiency and fracture resistance are both important requirements of Ni-Ti rotary instruments. According to references, reciprocating movement can reduce the incidence of cyclic fatigue failure and torsional fracture, but it would influence the cutting efficiency. This study investigates the effect of different rotary angles of reciprocating movement on cutting efficiency. The cutting efficiency is evaluated by three kinds of standards, the cutting quantity under the same cutting time, the same cutting distance and each fatigue life. Comparing to continuous movement, we found that the cutting efficiency is decreased by reciprocating movement under the same time and the same cutting distance. Most importantly, the cutting quantity is smaller when the rotary angle is small gradually. On the other hand, the cutting quantity under each fatigue life is improved by reciprocating movement. Among all the rotary angles, reciprocating movement at 90o has the best cutting quantity under the fatigue life.
In order to improve the cutting efficiency of the small rotary angles when using reciprocating movement, we use shifting specific angles clockwise from the starting point of reciprocating movement. We found shifting specific angles can improve cutting efficiency when using reciprocating movement. Comparing to continuous movement, the reciprocating movement at 90o and shifting 31o has the best cutting quantity under the same cutting distance and fatigue life. | en |
dc.description.provenance | Made available in DSpace on 2021-06-12T17:54:31Z (GMT). No. of bitstreams: 1 ntu-100-R98522510-1.pdf: 4198983 bytes, checksum: 6c2aa558baa6de73af43c00e79908f8d (MD5) Previous issue date: 2011 | en |
dc.description.tableofcontents | 口試委員審定書 i
致謝 ii 中文摘要 iii Abstract iv 目 錄 v 圖目錄 vii 第一章 導論 1 1-1前言 1 1-2研究動機 1 1-3研究方法 2 1-4論文架構 2 第二章 文獻回顧 4 2-1根管治療 4 2-2鎳鈦合金旋轉器械 5 2-2-1鎳鈦記憶合金簡介 5 2-2-2鎳鈦合金於醫學與牙科應用 6 2-3根管銼切削效率評估 7 2-3-1影響切削效率之參數 7 2-3-2各種評估根管銼切削效率之方法 8 2-4根管銼的往復旋轉 10 第三章 實驗材料與設備 21 3-1實驗材料 21 3-2切削實驗用馬達與驅動器 21 3-3切削試驗機台 21 第四章 實驗原理與方法 28 4-1實驗流程 28 4-2鎳鈦根管器械之往復旋轉 29 4-2-1實驗參數設定 29 4-2-2增量角度的原因與選擇 30 4-3鎳鈦根管銼切削實驗 31 4-3-1切削實驗簡介 31 4-3-2根管銼切削位置 31 4-3-3切削實驗參數 31 4-3-4切削實驗流程與步驟 32 4-4切削效率的評估準則 32 4-4-1相同時間下之切削量 33 4-4-2相同路程下之切削量 33 4-4-3疲勞壽命下之切削量 34 4-5壓克力圓柱切削面觀察 34 4-6切削實驗數據統計分析 34 第五章 實驗結果與討論 47 5-1鎳鈦根管器械往復旋轉於切削實驗結果 47 5-1-1實驗數據離散性討論 47 5-1-2相同時間下切削量比較 47 5-1-3相同路程下切削量比較 50 5-1-4各別疲勞壽命下切削量比較 51 5-2實際切削情形觀察 52 5-2-1壓克力圓柱切削刀痕觀察 52 5-2-2根管銼往復旋轉與磨耗情形觀察 52 5-3往復旋轉且增量角度於切削實驗結果 53 5-3-1往復旋轉90度且增量角度 53 5-3-2往復旋轉60度且增量角度 55 5-3-3往復旋轉45度且增量角度 56 5-3-4綜合比較 58 5-4正反轉切削實驗結果 59 5-5 轉速問題考量 59 5-5-1不同轉速切削量比較 60 5-5-2相同平均角速度下切削量比較 60 附錄A 100 附錄B 119 | |
dc.language.iso | zh-TW | |
dc.title | 往復運動於牙科鎳鈦旋轉器械切削效率之影響 | zh_TW |
dc.title | Reciprocating Movement on Cutting Efficiency of Ni-Ti Endodontic Rotary Instrument | en |
dc.type | Thesis | |
dc.date.schoolyear | 99-2 | |
dc.description.degree | 碩士 | |
dc.contributor.coadvisor | 林俊彬(Chun-Pin Lin) | |
dc.contributor.oralexamcommittee | 陳文斌,王兆麟 | |
dc.subject.keyword | 鎳鈦旋轉器械,鎳鈦根管銼,往復旋轉,切削,修形, | zh_TW |
dc.subject.keyword | Ni-Ti endodontic rotary instrument,Reciprocating movement,Cutting,Shaping, | en |
dc.relation.page | 126 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2011-08-09 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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