發(fā)布時(shí)間：2018-05-24 22:10

  本文選題：根管制備 + 牙根微裂　； 參考：《北京大學(xué)學(xué)報(bào)(醫(yī)學(xué)版)》2015年01期

【摘要】：目的:比較Hy Flex CM和Pro Taper Universal兩種鎳鈦器械預(yù)備根管后,根尖區(qū)牙根微裂的發(fā)生率。方法:收集60顆完整的離體下頜切牙,使用自凝樹(shù)脂和藻酸鹽印模材料進(jìn)行包埋,暴露根尖區(qū)3 mm。隨機(jī)分成3組(n=20),對(duì)照組不進(jìn)行根管預(yù)備,兩個(gè)實(shí)驗(yàn)組分別使用Hy Flex CM和Pro Taper Universal鎳鈦器械預(yù)備根管至#40/0.06。根管預(yù)備后,在距根尖孔1 mm、2 mm、3 mm處進(jìn)行水平切盤(pán),利用立體顯微鏡觀察并記錄牙根不同橫截面牙根微裂的產(chǎn)生情況。結(jié)果:對(duì)照組未觀察到牙根裂的產(chǎn)生,Hy Flex CM實(shí)驗(yàn)組牙根微裂的發(fā)生率為5%(1/20),Pro Taper Universal實(shí)驗(yàn)組為85%(17/20),兩實(shí)驗(yàn)組間牙根裂發(fā)生率的差異有統(tǒng)計(jì)學(xué)意義(P0.01)。結(jié)論:以Hy Flex CM鎳鈦系統(tǒng)進(jìn)行根管預(yù)備產(chǎn)生根尖部牙根微裂的風(fēng)險(xiǎn)明顯低于Pro Taper Universal。
[Abstract]:Objective: to compare the incidence of root microfissure in apical region after root canal preparation with Hy Flex CM and Pro Taper Universal. Methods: 60 intact mandibular incisors were collected and embedded with self-coagulating resin and alginate impression materials, and the apical region was exposed to 3 mm. Three groups were randomly divided into three groups, the control group did not perform root canal preparation, the two experimental groups were treated with Hy Flex CM and Pro Taper Universal nickel titanium instruments to prepare the root canal to #40 / 0.06 respectively. After root canal preparation, a horizontal cutting disc was performed at a distance of 1 mm to 2 mm / 3 mm from the apical foramen. The root microcracks in different cross sections of the root were observed and recorded by stereoscopic microscope. Results: the incidence of root microcleavage in Hy Flex CM group was not observed in the control group. The incidence of root microcleavage in Hy Flex CM group was 85 / 17 / 20 / 20 in the control group, and the difference between the two groups was statistically significant (P 0.01). Conclusion: the risk of apical root microfissures in root canal preparation with Hy Flex CM Ni-Ti system is significantly lower than that with Pro Taper Universal..
【作者單位】： 北京大學(xué)口腔醫(yī)學(xué)院·口腔醫(yī)院牙體牙髓科;
【分類號(hào)】：R781.05

【共引文獻(xiàn)】

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1 吳記文;洪青梅;;Mtwo機(jī)動(dòng)鎳鈦器械兩種預(yù)備方法對(duì)彎曲根管根尖成形和封閉效果的比較[J];廣東醫(yī)學(xué);2013年15期

2 陳暢行;張利平;陳武;;鎳鈦機(jī)用系統(tǒng)在根管預(yù)備中的應(yīng)用(綜述)[J];安徽衛(wèi)生職業(yè)技術(shù)學(xué)院學(xué)報(bào);2013年06期

3 郭婷婷;王成坤;;Path File鎳鈦銼建立根管治療疏通通道和根管預(yù)備的臨床效果評(píng)價(jià)[J];吉林大學(xué)學(xué)報(bào)(醫(yī)學(xué)版);2014年02期

4 鐘東青;熊世江;;不同器械去除根管內(nèi)充填材料的研究進(jìn)展[J];北京口腔醫(yī)學(xué);2014年01期

5 邵彤菲;侯本祥;;往復(fù)運(yùn)動(dòng)鎳鈦銼的設(shè)計(jì)特點(diǎn)和臨床應(yīng)用性能[J];北京口腔醫(yī)學(xué);2014年02期

6 鄭雨燕;金艷;吳曉云;馬麗輝;;兩種鎳鈦器械預(yù)備根管的臨床研究[J];廣東牙病防治;2014年06期

7 趙朋朋;秦宗長(zhǎng);;根管治療與根管壁微裂[J];國(guó)際口腔醫(yī)學(xué)雜志;2014年04期

8 朱玉婷;劉江峰;黃江勇;徐妍;李艷利;李曉星;陳秉勛;;控制記憶型鎳鈦銼HyFlexCM根管預(yù)備的臨床效果分析[J];國(guó)際口腔醫(yī)學(xué)雜志;2014年05期

9 伍婉翠;吳補(bǔ)領(lǐng);陳廣盛;;新型鎳鈦機(jī)動(dòng)器械預(yù)備橢圓形根管牙本質(zhì)微裂比較[J];重慶醫(yī)學(xué);2014年34期

10 陸支越;;樁核修復(fù)與牙根抗折裂強(qiáng)度[J];國(guó)際口腔醫(yī)學(xué)雜志;2015年02期

相關(guān)碩士學(xué)位論文 前10條

1 王琳;三種根充糊劑用于根管治療一次法的近期療效觀察[D];大連醫(yī)科大學(xué);2012年

2 許波;Hey1基因過(guò)表達(dá)對(duì)小鼠單核細(xì)胞RAW264.7向破骨細(xì)胞分化的影響[D];第四軍醫(yī)大學(xué);2013年

3 陳t，

本文編號(hào)：1930781