本文選題：根管預備 + 鎳鈦器械��； 參考：《新疆醫(yī)科大學》2017年碩士論文

【摘要】：目的:比較Protaper next、Waveone、Twisted File Adaptive(TFA)三種機用鎳鈦器械對中度彎曲透明樹脂模擬根管的成型能力的影響,為臨床應用提供實驗依據。方法:選取80個中度彎曲(20°)樹脂模擬根管按隨機數字表法等分為4組,即TFA組(T組)、Waveone組(W組)、Protaper next組(P組)與不銹鋼K挫組(K組),每組20個根管,分別采用Twisted File Adaptive(TFA)挫、Waveone挫、Protaper next挫及不銹鋼K挫進行根管預備,記錄根管預備時間,測定預備后根管工作長度,掃描儀獲取預備前后樹脂模擬根管圖像,使用Adobe PhotoshopCS5.0和ImageJ軟件進行圖像重疊并分別測量根管彎曲度的變化、根尖偏移情況,記錄軸中心率,從相距根尖孔1mm處開始作為一個觀測點,分別取3個觀測點,即:選擇樹脂模擬根管距離根尖孔3、5、7mm。統(tǒng)計學分析計量資料采用單因素方差分析,兩兩比較采用Dunnett分析和t檢驗,檢驗水準?=0.05。結果:(1)W組根管預備時間最短,T組次之,K組最長,四組比較差異有統(tǒng)計學意義(P0.05)。4種器械預備后根管工作長度變化值差異無統(tǒng)計學意義(P0.05);(2)距根尖孔3、5、7 mm截面,T組偏移量最小,與其他各組對比差異有統(tǒng)計學意義(P0.05),W組次之,K組偏移量最大(P0.05),T組軸中心率最高,其次為W組、P組,K組最低,四組軸中心率對比差異有統(tǒng)計學意義(P0.05);(3)預備前,各組彎曲度對比差異無統(tǒng)計學意義(P0.05),預備后,各組彎曲度均降低,以K組彎曲度降低最為明顯,T組彎曲度變化幅度最小。結論:TFA鎳鈦機用器械對中度彎曲樹脂模擬根管成型能力好,彈性性能高,韌度強,中心定位能力較高,偏移較少。
[Abstract]:Objective: to compare the effects of three kinds of machine Ni-Ti instruments on the formability of medium bending transparent resin to simulate root canal, and to provide experimental basis for clinical application. Methods: 80 moderately curved (20 擄) resin simulated root canals were randomly divided into 4 groups: TFA group (T group), Waveone group (W group), Protaper next group (P group) and stainless steel K frustration group (K group), with 20 root canals in each group. Root canal preparation was performed with Twisted File Adaptive (TFA) Waveone Protaper next cadaver and stainless steel K cadaver respectively. The root canal preparation time was recorded, the working length of root canal was measured, and the simulated root canal images were obtained by scanners before and after preparation. Adobe Photoshop CS5.0 and ImageJ software were used to perform image overlap and to measure the change of root canal curvature, root tip deviation and axis center rate respectively. From the point of 1mm distance from the apical foramen to the root tip, three observation points were selected, respectively. That is to say, selecting resin to simulate the root canal distance from the apical foramen 3 to 5, 7 mm. The measurement data of statistical analysis were analyzed by single factor ANOVA, Dunnett analysis and t test were used in the comparison, the test level was 0. 05%. Results: (1) the shortest root canal preparation time in group W was the longest in group K, and the difference among the four groups was statistically significant (P0.05). There was no significant difference in the working length of root canal between group W and group T (P0.05); (2). Compared with other groups, the difference was statistically significant (P0.05) the deviation of group K was the largest (P0.05), the rate of axial center of group T was the highest, and that of group W was the lowest (P0.05); (3). There was no significant difference in the curvature of each group (P0.05). After preparation, the curvature of each group decreased, especially in group K the most obvious decrease in the curvature of T group was the smallest. Conclusion the wee TFA Nickel-Titanium Machine has the advantages of good forming ability, high elasticity, high toughness, high center location ability and less deviation to the medium bending resin for simulating root canal formation.
【學位授予單位】：新疆醫(yī)科大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：R781.05

【參考文獻】

相關期刊論文 前10條

1 王麗娜;劉啟成;傅康貴;史春;牛衛(wèi)東;;機用鎳鈦器械Mtwo及K3預備磨牙彎曲根管成形能力的比較[J];中國組織工程研究;2015年12期

2 邵彤菲;侯曉玫;侯本祥;;往復運動鎳鈦銼根管預備成形能力的體外研究[J];華西口腔醫(yī)學雜志;2014年06期

3 丁巖;程瑋;錢t;;兩種機用鎳鈦器械預備根管一次法根管充填術的效果比較[J];醫(yī)學臨床研究;2014年11期

4 耿崎峰;賈甜甜;;兩種機用鎳鈦根管預備器械在樹脂模擬彎曲根管內的成形能力[J];口腔材料器械雜志;2014年01期

5 葛久禹;;鎳鈦根管預備器械[J];中國實用口腔科雜志;2014年01期

6 江淑梅;李健;;手用ProTaper鎳鈦銼預備彎曲根管的臨床應用[J];湖南師范大學學報(醫(yī)學版);2013年02期

7 李辰;朱亞琴;;4種根管預備方法對彎曲根管清潔效果的比較[J];安徽醫(yī)科大學學報;2012年08期

8 閆文娟;;機用和手用ProTaper預備中度彎曲根管后的器械損傷情況評價[J];牙體牙髓牙周病學雜志;2012年07期

9 白玉龍;陳陣;王永蘭;王瑛慧;;3種機用鎳鈦銼對彎曲根管成形能力的比較[J];口腔醫(yī)學研究;2012年05期

10 顧遠平;;手用鎳鈦器械銼結合不銹鋼K銼預彎法去除根管臺階療效分析[J];西部醫(yī)學;2011年08期

，

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