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热牙胶根管充填技术对下颌第二磨牙C形根管充填效果的研究 被引量:13

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摘要 目的利用染料渗入实验测量根尖微渗漏方法评价热牙胶垂直加压充填技术对C形根管充填后根尖封闭能力,并观察热牙胶充填技术治疗下颌第二磨牙C形根管的疗效,从而为临床运用热牙胶根管充填技术提供一定的理论及临床依据。方法 (1)选取40个为C形根管的离体下颌第二磨牙,ProTaper镍钛锉预备后随机分为两组,每组20个。实验组使用热牙胶垂直加压充填技术,以常规冷侧压技术作为对照组。两组样本在同样的实验条件下进行根尖微渗漏实验,用根管显微镜和游标卡尺测量每个根管染料渗透长度,所得数据使用统计软件SPSS 17.0进行统计分析,评价热牙胶根管充填技术对C形根管的封闭能力。(2)将40例下颌第二磨牙需做根管治疗并被诊断为C形根管的患者按就诊顺序分为两组,每组20例。Protaper镍钛锉预备后,实验组使用热牙胶垂直加压充填技术,常规冷侧压技术作为对照组。3个月后复查,拍摄X线片并结合临床以及患者的主观症状检查,对其疗效进行评价。结果 (1)热牙胶充填组根管根充后的渗透长度小于常规组,统计学检验有统计学意义(P<0.05)。(2)热牙胶充填组根管根充时间远远短于常规组,两组之间的差异有统计学意义(P<0.05)。(3)热牙胶充填组治愈率明显高于常规组,差异有统计学意义(P<0.05)。结论热牙胶由于其良好的物理性能,根充后根尖封闭能力优于冷牙胶侧方加压技术。高温牙胶热塑注射法操作简单,快速安全,术后反应少,疗效明确,是一种比较理想的C形根管充填技术,值得推广应用。
出处 《中华临床医师杂志(电子版)》 CAS 2013年第24期379-382,共4页 Chinese Journal of Clinicians(Electronic Edition)
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共引文献23

同被引文献115

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