| 摘要: |
| ［摘要］ 目的 探讨两种根管长度测量方法对根管充填质量的影响。方法 随机选择需行根管治疗术的单根管恒前牙352颗, 随机分为A、B两组, A组采用TRRY根管测量仪测量根管长度, 根管预备后加试主尖摄牙片, 侧方加压充填根管, 摄牙片;B组采用根管器械探测法测量根管长度, 根管预备后加试主尖摄牙片, 侧方加压充填根管, 摄牙片。结果 在实际工作长度±1.0 范围内, TRRY测量准确率为94.32%, 根管器械探测法测量准确率为78.40%，两种方法差异显著(P<0.01)。适充率:A组90.37%, B组75.82%，两种方法充填根管X片结果差异显著(P<0.01)，A组明显优于B组。结论 用TRRY根管测量仪加试主尖摄牙片的方法可明显提高根管充填的质量，值得临床推广应用。 |
| 关键词: 工作长度 根管测量仪 口腔数字成像系统 |
| DOI： |
| 分类号:R 781.05 |
| 基金项目: |
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| Influence of two canal length measurement on the quality of root canal obturation |
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CHEN Yan, LI Shi-jian, FA Ping, et al.
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Department of Oral Medicine, the People′s Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China
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| Abstract: |
| ［Abstract］ Objective To observe the influence of two canal length measurement on the quality of root canal obturation. Methods Three hundred and fifty two permanent teeth with single root canal which need root canal therapy were selected and divided randomly into two groups. A group: to measure the length of root canal by TRRY, prepare the root canal and test the trial point for a best position of the major Gutta Percha point in root canal, then take X-ray photos. After that obturate the root canal with lateral compaction and take X-ray photos. B group: to measure the length of root canal by root canal probes, prepare the root canal and test the trial point for a best position of the major Gutta Percha point in root canal, then take X-ray photos. After that obturate root canal with lateral compaction and take X-ray photos.Results Within 1.0 mm the TRRY＇s accuracy in A group was 94.32% and 78.41% in B group. There was significant difference between them(P<0.01). The rate of best root canal obturation in A group was 90.37%, and in B group was 75.76%. There was significant difference between them(P<0.01).The effect of A group was better than B group obviously.Conclusion The appliance of TRRY and trial point testing in root canal therapy then take X-ray photos may improve the quality of obturation remarkably. |
| Key words: Working length Electronic apex locator Oral digital imaging system |
