中国组织工程研究

中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (34): 5443-5447.doi: 10.3969/j.issn.2095-4344.2015.34.007

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

三种根管预备器械预备根管根尖碎屑推出量和根管清理能力的比较

伍婉翠，陈广盛   

  1. 广州医科大学附属第二医院口腔科，广东省广州市  510260
  • 出版日期:2015-08-20 发布日期:2015-08-20
  • 通讯作者: 陈广盛，硕士，主任医师，广州医科大学附属第二医院口腔科，广东省广州市 510260
  • 作者简介:伍婉翠，女，1983年生，广东省广州市人，汉族，2015年南方医科大学毕业，博士，主治医师，主要从事牙体牙髓病学及根管镍钛器械的研究。
  • 基金资助:

    广州市医药卫生科技一般引导项目资助(20121A011151)

Self-adjusting files, ProTaper Next and ProTaper Universal: a comparative study of root canal cleanness and the amount of apically extruded debris during root canal preparation

Wu Wan-cui, Chen Guang-sheng   

  1. Department of Stomatology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, Guangdong Province, China
  • Online:2015-08-20 Published:2015-08-20
  • Contact: Chen Guang-sheng, Master, Chief physician, Department of Stomatology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, Guangdong Province, China
  • About author:Wu Wan-cui, M.D., Attending physician, Department of Stomatology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, Guangdong Province, China
  • Supported by:

    the General Guidance Fund of Medicine and Health in Guangzhou City, No. 20121A011151

PDF

624

被引次数

6

摘要：

背景：根尖碎屑推出量是评价根管预备器械预备效果的一项重要指标。研究表明，推出根尖孔的碎屑将引起根管治疗后疼痛，减少根尖区碎屑的推出可降低术后疼痛发生率。

目的：比较新型镍钛器械自调节根管锉、ProTaper Next和传统镍钛器械ProTaper Universal预备人下颌单根管前磨牙的根尖碎屑推出量和根管清理能力。

方法：将45颗离体人下颌单根管前磨牙随机均分为3组，分别使用新型镍钛器械自调节根管锉、ProTaper Next和ProTaper Universal进行根管预备，收集推出根尖孔碎屑，比较不同根管预备器械的根尖碎屑推出量；纵向劈开根管预备后的牙根，扫描电镜下观察比较3种器械的根管清理能力。

结果与结论：ProTaper Universal组的根尖碎屑推出量显著高于ProTaper Next和自调节根管锉组(P < 0.05)，ProTaper Next组和自调节根管锉组的根尖碎屑推出量比较差异无显著性意义(P > 0.05）。自调节根管锉组预备后根管壁的碎屑和玷污层去除能力优于ProTaper Next组和ProTaper Universal组(P < 0.05)，ProTaper Next组和ProTaper Universal组预备后根管壁的碎屑和玷污层去除能力比较差异无显著性意义(P > 0.05)。表明新型镍钛器械自调节根管锉和ProTaper Next的根尖碎屑推出量较传统镍钛器械ProTaper Universal少，有利于减少根管治疗后疼痛的发生率；自调节根管锉预备后根管清洁度优于ProTaper Next和ProTaper Universal。

中国组织工程研究杂志出版内容重点：组织构建；骨细胞；软骨细胞；细胞培养；成纤维细胞；血管内皮细胞；骨质疏松；组织工程

关键词: 生物材料, 口腔生物材料, 机用镍钛器械, 根尖碎屑推出量, 根管清洁度

Abstract:

BACKGROUND: Amount of debris extruded apically is an important indicator to evaluate the effect of root canal preparation instrument. Studies have shown that debris extruded apically can cause post-treatment pain, and thus, reducing the amount of debris extruded apically can decrease the incidence of post-treatment pain.

OBJECTIVE: To compare the root canal cleanness and the amount of apically extruded debris during root canal preparation with Self-adjusting files, ProTaper Next and ProTaper Universal.

METHODS: Forty-five premolars with single canal were divided into three groups randomly, and then prepared by Self-adjusting files, ProTaper Next and ProTaper Universal, respectively. Debris extruded apically was collected, dried and weighed. Then roots were longitudinally sectioned and observed under scanning electronic microscope to evaluate the cleanness of the root canal.

RESULTS AND CONCLUSION: The amount of apically extruded debris in the ProTaper Universal group was significantly higher than that in the Self-adjusting files group and ProTaper Next group (P < 0.05), but there were no statistically significant differences between the groups of Self-adjusting files and ProTaper Next in apically extruded debris (P > 0.05). Scores on debris and smear layer were lower in the group of Self-adjusting files than the groups of ProTaper Next and ProTaper Universal (P < 0.05), but there was no difference between the latter two groups (P > 0.05). These findings indicate that the Self-adjusting files and ProTaper Next can extrude less debris beyond the apical foramen, which may decrease the incidence of post-treatment pain. Cleaning ability of Self-adjusting files is better than ProTaper Next and ProTaper Universal.

 

Key words: Nickel, Titanium, Root Canal Preparation, Tissue Engineering

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