| 摘要: |
| ［摘要］ 目的 评价声波和手用器械联合预备感染的后牙根管的临床效果。方法 对129例慢性根尖周炎的155颗后牙，随机分为实验组：76颗，163个根管，用MM1500声波手机及其配套的Rispisonic锉针，结合手用不锈钢K型锉预备根管；对照组：79颗，168个根管，单纯手用不锈钢K型锉预备。两组均用甘油-氢氧化钙糊剂根管内封药消毒，符合根充条件即行根管充填。对两组的疗程次数，根管治疗期间急症发生率，根管充填质量进行比较。结果 实验组的疗程次数少于对照组（P<0.05）；两组的急症发生率、根管充填质量无统计学意义（P>0.05）。结论 用声波器械结合手用器械预备感染的后牙根管，其虽不能提高根管充填质量和减少EIE的发生，但能减少治疗感染根管的疗程次数，具有临床应用的可行性。 |
| 关键词: 声波器械 感染 根管预备 疗程 |
| DOI：10.3969/j.issn.1674-3806.2009.12.14 |
| 分类号:R 781.05 |
| 基金项目: |
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| A clinical observation on preparation infected molar root canals by the combination of sonic endodontic instrument and hand file |
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LI Shi-jian, CHEN Yan, LU Zhao-wei, et al.
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Department of Stomatology, the People′s Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China
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| Abstract: |
| ［Abstract］ Objective To investigate the clinical efficacy of root canal preparation by the combination of sonic endodontic instrument and hand K- file for infected molar root canals.Methods One hundred and fifty-five molars of 129 chronic infected cases were randomly assigned to two groups and were prepared with step-back technique and disinfected by using calcium hydroxide paste as an interappointment medicament, experiment group（76 molars, 163 root canals）were prepared by sonic endodontic instrument MM1500 unit and hand K- file; control group（79 molars, 168 root canals）were prepared only by stainless steel hand K-files. The quality of root canal obturation，the incidence of EIE and the numbers of treatment sessions between two groups were compared.Results There were significant difference of the numbers of treatment sessions between two groups，experiment group was less （P<0.05）, but no statistical significant differences of the quality of root canal obturation and the incidence of EIE between two groups （P > 0.05）.Conclusion The combination of sonic endodontic instrument and hand K- file for infected molars root canals can reduce the numbers of treatment sessions，and be worth of clinical application. |
| Key words: Sonic endodontic instruments Infection Root canal preparation Treatment sessions |
