中国组织工程研究

中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (43): 6918-6923.doi: 10.3969/j.issn.2095-4344.2015.43.006

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

次氯酸钠冲洗方式、温度和冲洗时间影响根管玷污层的清除效果

后岷红1，陈 敏2，李 蕾3，张沙沙4，周冬艳5，吴丽更2   

  1. 1天津市第四中心医院口腔科，天津市  300242；2天津医科大学口腔医院牙体牙髓科，天津市  300052；3航天中心医院口腔科，北京市  100049；4天津市口腔医院牙体牙髓科，天津市  300041；5嘉兴市第二医院口腔科，浙江省嘉兴市  314000
  • 收稿日期:2015-09-13 出版日期:2015-10-15 发布日期:2015-10-15
  • 通讯作者: 吴丽更，主任医师，天津医科大学口腔医院，天津市 300052
  • 作者简介:后岷红，女，1967年生，天津市人，汉族，1991年天津医科大学毕业，副主任医师，主要从事口腔临床根管治疗与正畸方面的研究。
  • 基金资助:

    天津市卫生局科技基金资助项目(2010KZ102)

Flushing methods, temperature and flushing time of sodium hypochlorite affect the clearance effect on the smear layer of root canal

Hou Min-hong1, Chen Min2, Li Lei3, Zhang Sha-sha4, Zhou Dong-yan5, Wu Li-geng2   

  1. 1Department of Stomatology, Tianjin 4th Central Hospital, Tianjin 300242, China; 2Department of Endodontics, Stomatology Hospital of Tianjin Medical University, Tianjin 300052, China; 3Department of Stomatology, Beijing Space Center Hospital, Beijing 100049, China; 4Department of Endodontics, Tianjin Stomatological Hospital, Tianjin 300041, China; 5Department of Stomatology, Jiaxing Second Hospital, Jiaxing 314000, Zhejiang Province, China
  • Received:2015-09-13 Online:2015-10-15 Published:2015-10-15
  • Contact: Wu Li-geng, Chief physician, Department of Endodontics, Stomatology Hospital of Tianjin Medical University, Tianjin 300052, China
  • About author:Hou Min-hong, Associate chief physician, Department of Stomatology, Tianjin 4th Central Hospital, Tianjin 300242, China
  • Supported by:

    the Science and Technology Foundation of Tianjin Health Bureau of China, No. 2010KZ102

PDF

264

被引次数

16

摘要：

背景：根管预备中，次氯酸钠根管冲洗液清除玷污层的效果与冲洗液接触时间和面积、冲洗液的量、冲洗液温度、冲洗液浓度、冲洗方式等有关。

目的：观察在不同冲洗方式、冲洗温度和冲洗时间下，3%次氯酸钠对根管玷污层的清除效果。
方法：收集离体人单根前牙180颗，均采用机动ProTaper进行根管预备，以3%次氯酸钠冲洗根管，根据冲洗方式将其随机均分为根管主动清洗组、被动超声荡洗组和侧方开口冲洗针组3大组，再根据冲洗温度和每更换一根锉后的冲洗时间分别将每大组随机均分为6小组，分别为20 ℃ 30 s组、20 ℃ 60 s组、37 ℃    30 s组、37 ℃ 60 s、60 ℃ 30 s组和60 ℃ 60 s组。扫描电镜观察各组根管玷污层清除效果。
结果与结论：根管主动清洗组玷污层的总体清除效果优于被动超声荡洗组与侧方开口冲洗针组(P < 0.05)。每组组内，在时间一定的情况下，60 ℃组的玷污层清除效果优于37 ℃组、20 ℃组(P < 0.05)；在温度一定的情况下，60 s组的玷污层清除效果优于30 s组(P < 0.05)；根冠1/3区的玷污层清除效果优于根中1/3区、根尖1/3区(P < 0.05)。说明以根管主动清洗方式，采用60 ℃的3%次氯酸钠清洗60 s清除玷污层的效果最好。
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

关键词: 生物材料, 口腔生物材料, 次氯酸钠, 玷污层, 温度, Endoactivator, 被动超声荡洗, 根管冲洗

Abstract:

BACKGROUND: In root canal preparation, the clearance effect of sodium hypochlorite for root canal irrigation on the smear layer is associated with the contact time and contact area of irrigation fluid, the amount of irrigation fluid, irrigation fluid temperature, irrigation fluid concentration, flushing methods and so on.

OBJECTIVE: To investigate the clearance effect of 3% sodium hypochlorite on the smear layer of root canal under different flushing methods, flushing temperature and flushing time.
METHODS:Totally 180 isolated front teeth with single root were collected and root canal preparation was conducted using motorized ProTaper. The root canal was flushed with 3% sodium hypochlorite. According to different flushing methods, these root canals were randomly and evenly divided into root canal active flushing group, passive ultrasound swished group and side opening flushing needle group. According to the flushing temperature and the flushing time after replacing a file, each group was randomly divided into six subgroups: 20 ℃ 30 seconds group,  20 ℃ 60 seconds group, 37 ℃ 30 seconds group, 37 ℃ 60 seconds, 60 ℃ 30 seconds group and 60 ℃ 60 seconds group. The clearance effect on the smear layer of root canal was observed using scanning electron microscope. 

RESULTS AND CONCLUSION: The general clearance effect on the smear layer in the root canal active flushing group was better than that in the passive ultrasound swished group and side opening flush acupuncture group (P < 0.05). At the same time, the clearance effect on the smear layer in the 60 ℃ group was better that that in the 37 ℃ group and 20 ℃ group (P < 0.05). At a certain temperature, the clearance effect on the smear layer in 60 seconds group was better than that in the 30 seconds group (P < 0.05). The clearance effect on the smear layer in the 1/3 root cap zone was better than that in the 1/3 root and 1/3 apical root zone (P < 0.05). These results show that the best clearance effect on the smear layer can be achieved as follows: 3% sodium hypochlorite irrigation at 60 ℃ for 60 seconds. 
 

Key words: Sodium Hypochlorite, Root Canal Preparation, Root Canal Irrigants, Tissue Engineering