口腔医学研究 ›› 2018, Vol. 34 ›› Issue (11): 1182-1185.DOI: 10.13701/j.cnki.kqyxyj.2018.11.009

• 龋病牙髓病学研究 • 上一篇    下一篇

镍钛机用器械联合超声冲洗对慢性根尖周炎根管内毒素的清除效果

胡永青, 李雅, 李淑娟, 梁向阳, 杨冬茹*   

  1. 河北医科大学口腔医院口腔内科 河北 石家庄 050017
  • 收稿日期:2018-04-21 出版日期:2018-11-28 发布日期:2018-11-23
  • 通讯作者: 杨冬茹,E-mail:yangdr@hebmu.edu.cn
  • 作者简介:胡永青(1975~ ),女,陕西人,硕士,主治医师,主要从事牙体牙髓病学、牙周病学研究。
  • 基金资助:
    河北省卫生计生委医学科学研究重点课题指导计划(编号:20100446)

Clearup Effects of Nickel-titanium Rotary Instrument and Ultrasonic Irrigation on Endotoxin Level in Root Canals of Chronic Apical Periodontitis

HU Yong-qing, LI Ya, LI Shu-juan, LIANG Xiang-yang, YANG Dong-ru*   

  1. Department of Endodontics, Stomatological Hospital, Hebei Medical University, Shijiazhuang 050017, China.
  • Received:2018-04-21 Online:2018-11-28 Published:2018-11-23

摘要: 目的:研究镍钛机用器械联合超声冲洗对慢性根尖周炎患牙根管内毒素的清除效果。方法:临床选择上颌前牙慢性根尖周炎30例,随机分为3组,A组镍钛机用器械预备常规冲洗,B组镍钛机用器械预备后无菌蒸馏水超声冲洗1 min,C组镍钛机用器械预备后3%次氯酸钠溶液超声冲洗1 min,检测患牙机械预备、超声冲洗后根管内毒素的含量变化。结果:3组患牙治疗前内毒素含量的差异无统计学意义(P>0.05);A、B、C三组治疗后内毒素含量分别为(8.52±2.04) EU/mL,(1.61±0.41) EU/mL,(0.22±0.11) EU/mL,差异有统计学意义(P<0.05)。结论:镍钛机用器械联合超声冲洗对根管内毒素有良好的清除作用;镍钛机用器械预备后以3%次氯酸钠溶液超声冲洗1 min对根管内毒素的清除效果优于无菌蒸馏水超声冲洗1 min。

关键词: 超声冲洗, 根管内毒素, 根管消毒, 慢性根尖周炎

Abstract: Objective: To study the clearup effects of nickel-titanium rotary instrument and ultrasonic irrigation on the endotoxin level in root canals of chronic apical periodontitis. Methods: Thirty maxillary anterior teeth clinically diagnosed with chronic apical periodontitis were randomized into three groups. Group A was prepared with nickel-titanium rotary instrument. Group B was given one minute ultrasonic irrigation with sterile distilled water after root canal preparation with nickel-titanium rotary instrument. Group C was given one minute ultrasonic irrigation with 3% NaClO after root canal preparation with nickel-titanium rotary instrument. The concentration of endotoxin in the root canals was detected before and after treatments. Results: There were no statistical differences between three groups before treatments (P>0.05). The endotoxin concentrations in the three groups were (8.52±2.04) EU/mL, (1.61±0.41) EU/mL, and (0.22±0.11) EU/mL, respectively after treatments (P<0.05). Conclusion: Nickel-titanium rotary instrument and ultrasonic irrigation has a good effect on the clearup effect of endotoxin level in the root canals, and the effect with ultrasonic irrigation for one minute with 3% NaClO was better than ultrasonic irrigation for one minute with sterile distilled water.

Key words: Ultrasonic irrigation, Endotoxin in the root canal, Root canal disinfection, Chronic apical periodontitis