不同方法对根管内氢氧化钙去除效果的micro-CT评价

doi:10.19439/j.sjos.2024.03.001

上海口腔医学 ›› 2024, Vol. 33 ›› Issue (3): 225-228.doi: 10.19439/j.sjos.2024.03.001

不同方法对根管内氢氧化钙去除效果的micro-CT评价

伍甜甜, 韩艳彦^#, 汪轶^#

上海交通大学医学院附属第九人民医院口腔综合科,上海交通大学口腔医学院,国家口腔医学中心, 国家口腔疾病临床医学研究中心,上海市口腔医学重点实验室,上海市口腔医学研究所,上海 200011

收稿日期:2024-03-02 修回日期:2024-04-22 出版日期:2024-06-25 发布日期:2024-07-11
通讯作者: 韩艳彦,E-mail：iceleave211@163.com;汪轶,E-mail：realwangyi@sina.com。^#共同通信作者
作者简介:伍甜甜（1987-）,女,博士,主治医师,E-mail：wutiantian_happy@126.com
基金资助:
国家自然科学基金（81700949）

Study of the effect of different methods on the removal of calcium hydroxide in root canal by micro-computed tomography in vivo

WU Tian-tian, Han Yan-yan, WANG Yi

Department of General Dentistry, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology. Shanghai 200011, China

Received:2024-03-02 Revised:2024-04-22 Online:2024-06-25 Published:2024-07-11

摘要/Abstract

摘要： 目的：应用显微CT(micro-computed tomography,micro-CT)建立磨牙根管模型,评价不同方法对氢氧化钙的清除效率。方法：收集2023年10月—2024年2月口腔综合科门诊拔除的11颗磨牙（24个根管）,按照标准根管治疗流程,镍钛器械预备完成后,在根管内置入氢氧化钙,1周后,根据不同冲洗方法将样本随机分为侧方开口注射器组、超声荡洗组（EMS组）和声波震荡组（EDDY组）等3组（n=8)。冲洗前后使用micro-CT重建根管系统并使用不同颜色标记独立根管,计算各个根管氢氧化钙体积,比较各组氢氧化钙清除率。采用SPSS 19.0软件包对数据进行统计学分析。结果：3种方法均无法完全去净根管内氢氧化钙。使用次氯酸钠作为冲洗液时,超声荡洗和声波震荡清除效果优于侧方开口冲洗器（P<0.05）;超声荡洗和声波震荡去除氢氧化钙效率相当,差异无统计学意义（P>0.05）;氢氧化钙残留部位集中于根尖区。结论：Micro-CT能较为高效地重建磨牙根管模型,可用于评价氢氧化钙去除效果。超声荡洗组和声波震荡组清除氢氧化钙效率相当,优于侧方开口注射器组。

关键词: Micro-CT, 氢氧化钙, 超声荡洗, 声波震荡, EMS, EDDY

Abstract: PURPOSE: To establish molar root canal model with micro-computed tomography (Micro-CT) and evaluate the removal efficiency of calcium hydroxide by different methods. METHODS: Eight molar teeth (24 root canals) extracted from the Department of General Dentistry, Shanghai Ninth People's Hospital from October 2023 to February 2024 were collected. Root canal preparation was instrumented by M3 according to standard root canal treatment procedures, then calcium hydroxide was injected into the root canal. One week later, the samples were randomly divided into 3 groups according to different irrigation methods(n=8): lateral opening syringe group, ultrasonic group and sonic vibration group. Micro-CT was used to reconstruct the root canal system before and after irrigation, and independent root canals were marked with different colors. The root canals were divided into upper root segment, middle root segment and apex segment. The volume of calcium hydroxide in each canal was calculated, and the clearance rate of calcium hydroxide was compared among the groups. SPSS 19.0 software package was used for statistical analysis. RESULTS: None of the three methods could completely remove calcium hydroxide from the root canal. When sodium hypochlorite was used as the flushing solution, the removal effect of ultrasonic group and sonic vibration group was significantly better than that of lateral opening syringe group(P<0.05). The removal efficiency of calcium hydroxide by ultrasonic group and sonic vibration group was similar, and the difference was not statistically significant(P>0.05). The removal rate of calcium hydroxide in apical segment was low. CONCLUSIONS: Micro-CT can reconstruct the molar root canal model efficiently for evaluating the removal effect of calcium hydroxide. The removal efficiency of calcium hydroxide in ultrasonic group and sonic vibration group is similar, and both are better than that in lateral syringe group.

Key words: Micro-CT, Calcium hydroxide, Ultrasonic, Sonic vibration, EMS, EDDY

中图分类号:

R781.05

伍甜甜, 韩艳彦, 汪轶. 不同方法对根管内氢氧化钙去除效果的micro-CT评价[J]. 上海口腔医学, 2024, 33(3): 225-228.

WU Tian-tian, Han Yan-yan, WANG Yi. Study of the effect of different methods on the removal of calcium hydroxide in root canal by micro-computed tomography in vivo[J]. Shanghai Journal of Stomatology, 2024, 33(3): 225-228.

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不同方法对根管内氢氧化钙去除效果的micro-CT评价

Study of the effect of different methods on the removal of calcium hydroxide in root canal by micro-computed tomography in vivo

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