中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (3): 450-454.doi: 10.3969/j.issn.2095-4344.2015.03.022

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

三种机用镍钛器械对推出根尖孔碎屑和冲洗液影响的比较

王丽娜,刘启成,林志鑫,史 春,牛卫东   

  1. 大连医科大学口腔医学院,辽宁省大连市 116044
  • 出版日期:2015-01-15 发布日期:2015-01-15
  • 通讯作者: 牛卫东,博士,教授,大连医科大学口腔医学院,辽宁省大连市 116044
  • 作者简介:王丽娜,女,1981年生,辽宁省锦州市人,满族,在读博士,讲师,主要从事牙体牙髓病学的临床与基础研究。
  • 基金资助:

    国家自然科学基金(81171538)

A comparative study of apically extruded debris and irrigant exudation by using three kinds of nickel-titanium rotary instruments

Wang Li-na, Liu Qi-cheng, Lin Zhi-xin, Shi Chun, Niu Wei-dong   

  1. College of Stomatology, Dalian Medical University, Dalian 116044, Liaoning Province, China
  • Online:2015-01-15 Published:2015-01-15
  • Contact: Niu Wei-dong, M.D., Professor, College of Stomatology, Dalian Medical University, Dalian 116044, Liaoning Province, China
  • About author:Wang Li-na, Studying for doctorate, Lecturer, College of Stomatology, Dalian Medical University, Dalian 116044, Liaoning Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81171538

摘要:

背景:根管预备过程中所产生的牙本质碎屑及冲洗液有可能被带到牙根尖周围,造成严重的术后疼痛并延缓根尖组织愈合过程。研究表明,采用机用镍钛器械主进行根管预备时的根尖碎屑产生量明显低于手用器械。

 

目的:比较临床上常用的3种机动镍钛旋转式器械ProTaper、ProFile及K3和手动不锈钢器械K-file在根管预备时,推出根尖孔的牙本质碎屑量和冲洗液渗出量。

 

方法:选取40颗单根管人离体牙,随机均分成4组,分别用镍钛旋转器械ProTaper、ProFile、K3及手动不锈钢器械K-file进行根管预备,预备后每颗样本牙用等量的冲洗液冲洗根管,收集预备过程中从根尖孔推出的碎屑和液体,电子秤测得推出根尖孔的液体和碎屑的质量。

 

结果与结论:K-file组所产生的根尖推出碎屑量及冲洗液渗出量最多,多于镍钛旋转器械3组(P < 0.05);K3组根尖推出碎屑量最少,但3种机动镍钛器械根尖推出碎屑量组间比较差异无显著性意义(P > 0.05);K3组冲洗液渗出量明显少于ProTaper及ProFile组(P < 0.05),后两组间差异无显著性意义(P > 0.05)。K-file组所产生的冲洗液渗出量与根尖推出碎屑量呈正相关(P < 0.05),机用镍钛器械3组中冲洗液与根尖推出碎屑量无明显相关性。说明在临床上进行根管预备时尽量选用机用镍钛器械。

 

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 口腔生物材料, 机用镍钛器械, 根尖推出碎屑量, 冲洗液渗出量, 国家自然科学基金

Abstract:

BACKGROUND: Apically extruded debris and irrigant exudation can be produced during the root canal preparation, which lead to severe postoperative pain. Studies have shown that nickel-titanium rotary instruments used during the root canal preparation can generate less apical debris than hand instruments.

OBJECTIVE: To compare three commonly used nickel-titanium rotary instruments, ProTaper, ProFile, K3, and hand instrument, K-file, in the root canal preparation and to detect the amount of apically extruded debris and irrigant exudation.
METHODS: Forty extracted teeth with simple root were randomly divided into four groups, and ProTaper, ProFile, K3, and K-file were respectively used for root canal preparation. Then, the apical debris and irrigants generated were collected and weighed using an electronic scale.
RESULTS AND CONCLUSION: The amount of apically extruded debris and exuded irrigants generated by the K-file method was larger than that using the other methods (P < 0.05), while the amount of apically extruded debris and exuded irrigants was the least using the K3 method (P < 0.05). There was no difference in the apically extruded debris between the three types of Ni-Ti rotary instruments (P > 0.05). The amount of exuded irrigants generated by the K3 instrument was significantly lower than that generated by the ProTaper and ProFile (P < 0.05), but there was no difference between the latter two instruments (P > 0.05). In the group of K-file, the amount of exuded irrigants was positively correlated to the amount of the apically extruded debris (P < 0.05); however, there was no significant correlation in the three kinds of nickel-titanium rotary instruments. These findings indicate that the Ni-Ti instruments are preferred for root canal preparation.

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: Root Canal Preparation, Tooth Apex, Root Canal Irrigants

中图分类号: