【摘要】：目的:比較3種往復(fù)旋轉(zhuǎn)單支鎳鈦器械預(yù)備模擬彎曲根管的切割能力和成形能力,為其臨床應(yīng)用提供參考。方法:選取30個(gè)單彎樹脂模擬根管模塊,隨機(jī)分為Reciproc組、One file組和WaveOne組,每組10個(gè)模塊。按廠家提供的使用說(shuō)明預(yù)備模擬根管,記錄根管預(yù)備時(shí)間、預(yù)備前后模塊的質(zhì)量差,測(cè)量根管彎曲角度的變化及鎳鈦器械中心定位能力。結(jié)果:WaveOne組的根管預(yù)備時(shí)間較其他2組長(zhǎng)(P0.05);3組鎳鈦器械根管預(yù)備前后模塊的質(zhì)量差比較差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05);3組鎳鈦器械預(yù)備前后模擬根管彎曲角度的差值比較差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。距離根尖孔5 mm處,Reciproc組和One file組的中心定位能力優(yōu)于WaveOne組(P0.05);在距離根尖孔6和7 mm處,One file組的中心定位能力優(yōu)于其他2組(P0.05)。結(jié)論:WaveOne、Reciproc和One file 3種往復(fù)旋轉(zhuǎn)單支鎳鈦器械均可較好地保持模擬根管的原始形態(tài)。WaveOne預(yù)備根管的效率低于其他2組。One file在各段根管的中心定位能力均高于其他2組。
[Abstract]:Objective: to compare the cutting ability and forming ability of three reciprocating and rotating single nickel titanium instruments in preparation of simulated curved root canals, and to provide reference for clinical application. Methods: thirty single curved resin simulated root canal modules were randomly divided into Reciproc group one file group and WaveOne group with 10 modules in each group. According to the instructions provided by the manufacturer, the preparation of root canal was simulated, the preparation time of root canal was recorded, the quality of the module before and after preparation was poor, the change of bending angle of root canal and the locating ability of nickel titanium instrument center were measured. Results there was no significant difference in root canal preparation time between the two groups (P0.05). There was no significant difference in the quality difference between the two groups before and after the root canal preparation (P0.05). There was no significant difference in the simulated root canal bending angle between the three groups (P0.05). The ability of central localization in Reciproc group and One file group was better than that in WaveOne group at 5 mm from apical foramen (P0.05), and that in one file group at 6 and 7 mm from apical foramen was better than that in other two groups (P0.05). Conclusion: the efficiency of root canal preparation with the original form of simulated root canal. WaveOne is lower than that of the other two groups. One file is superior to the other two groups in locating the center of each segment of root canal. [conclusion] both the 1: WaveOne Reciproc and One file reciprocating and rotating single nickel titanium instruments can maintain the original shape of simulated root canal and the efficiency of preparing root canal is lower than that of the other two groups.
【作者單位】： 吉林大學(xué)口腔醫(yī)院牙體牙髓病科;
【基金】：吉林省科技廳科技發(fā)展計(jì)劃項(xiàng)目資助課題(20140414010GH)
【分類號(hào)】：R781.05

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