| 应用显微CT评估两种镍钛锉预备重度弯曲根管成形能力的实验研究 |
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| 引用本文： | 陈晓燕,马琰,邱申彩,舍玉秀,吴佩玲.应用显微CT评估两种镍钛锉预备重度弯曲根管成形能力的实验研究[J].中国美容医学,2019(1):122-125. |
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| 作者姓名： | 陈晓燕 马琰 邱申彩 舍玉秀 吴佩玲 |
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| 作者单位： | 新疆医科大学第二附属医院口腔科 |
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| 基金项目： | 新疆维吾尔自治区自然科学联合基金(编号:2016D01C212) |
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| 摘 要： | 目的:使用显微CT(micro-computdetomographicimaging,Micro-CT)扫描成像系统,观察比较ProTaperNext(PTN)和Twisted Files Adaptive(TFA)预备下颌磨牙近中弯曲根管的成形能力。方法:20颗近期拔除的具有两个独立且呈25°～35°近中根管的下颌磨牙,采用两种机用根管锉系统进行根管预备,Micro-CT扫描并三维重建根备前后并成像,对以下参数分析:根管容积、表面积、根管偏移、根管/根宽度比和预备时间。结果:PTN平均偏移范围为0.038～0.174mm,TFA为0.079～0.197mm,在各水平评估的参数的统计学比较无显著性差异(P>0.05)。根管预备完成后,所有根管在观测水平的根管宽度都不超过根宽的35%。结论:应用Micro-CT系流评估,PTN和TFA在根管偏移和对中能力上具有相似结果,两种器械没有出现过度切削牙本质,降低了根折的风险。
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| 关 键 词： | 根管治疗 根管预备 MICRO-CT 根管偏移 牙本质厚度 |
Experiment Research on Evaluating the Shapping Ability of Two Nickel-Titanium Instruments to Prepare Severely Curved Canals with Micro-CT |
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| CHEN Xiao-yan,MA Yan,QIU Shen-cai,SHE Yu-xiu,WU Pei-ling.Experiment Research on Evaluating the Shapping Ability of Two Nickel-Titanium Instruments to Prepare Severely Curved Canals with Micro-CT[J].Chinese Journal of Aesthetic Medicine,2019(1):122-125. |
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| Authors: | CHEN Xiao-yan MA Yan QIU Shen-cai SHE Yu-xiu WU Pei-ling |
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| Affiliation: | (Department of Stomatology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830068,Xinjiang,China) |
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| Abstract: | CHEN Xiao-yan;MA Yan;QIU Shen-cai;SHE Yu-xiu;WU Pei-ling(Department of Stomatology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830068,Xinjiang,China) |
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| Keywords: | root canal treatment root canal preparation micro-computed tomographic imaging root canal transportation dentin thickness |
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