上海口腔医学 ›› 2022, Vol. 31 ›› Issue (1): 6-11.doi: 10.19439/j.sjos.2022.01.002

• 论著 • 上一篇    下一篇

被动超声冲洗对弯曲根管的碎屑清理能力和根管形态的影响

PRIYA Vishnu1, 邵皎皎1, 封菲2, 张旗1   

  1. 1.同济大学口腔医学院 牙体牙髓病学教研室,上海牙组织再生与修复工程技术研究中心,上海 200072;
    2.上海市口腔医院 牙体牙髓病科,上海 200001
  • 收稿日期:2020-09-24 修回日期:2020-11-10 出版日期:2022-02-25 发布日期:2022-03-10
  • 通讯作者: 张旗,E-mail: qizhang@tongji.edu.cn
  • 作者简介:PRIYA Vishnu (1991-),女,硕士,E-mail: drvishnupriya91@gmail.com
  • 基金资助:
    国家自然科学基金(81870760、81570966); 中央高校基本科研业务费专项资金(22120190217)

Study on the influence of passive ultrasonic irrigation on debris cleaning ability and root canal shape

PRIYA Vishnu1, SHAO Jiao-jiao1, FENG Fei2, ZHANG Qi1   

  1. 1. Department of Dentistry and Endodontics, School of Stomatology, Tongji University, Shanghai Engineering Research Center for Dental Tissue Regeneration and Restoration. Shanghai 200072;
    2. Department of Dentistry and Endodontics, Shanghai Stomatological Hospital. Shanghai 200001, China
  • Received:2020-09-24 Revised:2020-11-10 Online:2022-02-25 Published:2022-03-10

摘要: 目的: 评价被动超声冲洗在弯曲根管内碎屑清理能力和根管偏移量。方法: 选取下颌磨牙近中弯曲根管36个,弯曲度在25°以上,以机用 XP-endo Shaper根管锉预备根管。根据弯曲长度(curved length,CL)和冲洗方式分为A1组(CL>3 mm,注射器冲洗)、B1组(CL>3 mm,超声K锉冲洗)、C1组(CL>3 mm,irrisafe超声锉冲洗)、A2组(CL<3 mm,注射器冲洗)、B2组(CL<3 mm,超声K锉冲洗)和C2组(CL<3 mm,irrisafe超声锉冲洗),每组6个样本。对所有样本冲洗前、后进行Micro-CT扫描,计算冲洗后根管内体积增加量和根管偏移量。采用SPSS 22.0软件包对数据进行统计学分析。结果: 在CL>3 mm的根管根尖区,PUI+irrisafe组的根管体积增量显著高于PUI+K锉和注射器冲洗(P<0.05),并且在距离根尖孔5 mm处PUI+irrisafe形成的根管偏移量显著低于PUI+K锉(P<0.05);与注射器冲洗相比无显著差异(P>0.05)。在CL<3 mm的根管中,PUI+irrisafe组和PUI+K锉组的根管体积增量均显著高于注射器冲洗(P<0.05),但根管偏移量与注射器冲洗无显著差异(P<0.05)。结论: 在弯曲长度较大的根管中,被动超声冲洗结合预弯锉可获得更好的清理效果;而在弯曲长度较小的根管中,被动超声冲洗结合K锉和预弯锉均安全有效。

关键词: 被动超声冲洗, 弯曲根管, 根管偏移

Abstract: PURPOSE: To evaluate the safety and effectiveness of passive ultrasonic irrigation(PUI) in curved root canals, and debris cleaning ability and the amount of root canal transportation of passive ultrasonic irrigation(PUI) in curved root canals. METHODS: A total of 36 mesially curved root canals of mandibular molars with a curvature above 25° were selected. The root canals were prepared with XP-endo Shaper root canal file. The samples were divided into A1 group (curved length>3 mm, syringe irrigation), B1 group(curved length>3 mm, PUI+K file), C1 group(curved length>3 mm, PUI+irrisafe), A2 group (curved length<3 mm, syringe irrigation), B2 group (curved length<3 mm, PUI+K file), and C2 group (curved length<3 mm, PUI+ irrisafe) (n=6). Micro-CT scans were performed on all samples before and after irrigation, and the volume increase in the root canal after irrigation and the transportation of the root canal were calculated. SPSS 22.0 software package was used to analyze the data. RESULTS: In the apical area of the root canal with a curved length greater than 3 mm, the root canal volume increase in the PUI+irrisafe group was significantly greater than that of the PUI+K file and syringe irrigation (P<0.05), and at 5 mm section, the transportation of the root canal formed by PUI+irrisafe was significantly lower than that of the PUI+K file (P<0.05), but there was no significant difference from syringe irrigation (P>0.05); in root canals with a curved length less than 3 mm, root canal volume increment of the file group was significantly greater than that of syringe irrigation (P<0.05), but there was no significant difference between the root canal transportation and syringe irrigation(P<0.05). CONCLUSIONS: In root canals with larger curved length, passive ultrasonic irrigation combined with a pre-curved file can obtain a better cleaning effect, while in root canals with smaller curved length, both K file and pre-curved file with passive ultrasonic irrigation are safe and effective.

Key words: Passive ultrasonic irrigation, Curved canals, Root canal transportation

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