与根运河缺陷相关的Enterococcus faecalis的特征:病毒性和耐药性概况
Jyoti Sharma1, Swaty Jhamb2, Manjula Mehta1
1Department of Microbiology, Dr. Harvansh Singh Judge Institute of Dental Sciences and Hospital, Panjab University, Chandigarh, India.
Journal of conservative dentistry and endodontics
|August 1, 2025
概括
根管感染的常见原因Enterococcus faecalis表现出显著的抗生素耐药性,特别是在产生生物膜的菌株中. 加强消毒和针对生物膜的策略对于成功的再处理至关重要.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 微生物学 微生物学
- 传染性疾病 传染性疾病
背景情况:
- 菌 (Enterococcus faecalis) 是持续根管感染的关键病原体.
- 它的毒性因子和抗菌素耐药性在治疗中提出了挑战.
- 了解这些特征对于改善内牙科再治疗结果至关重要.
研究的目的:
- 为了分析E. faecalis的毒性因子和抗生素耐药性概况,从失败的根管程序.
- 调查这些分离物中生物膜形成和抗菌素耐药性之间的关系.
主要方法:
- 对50名接受根管再治疗的患者进行横截面研究.
- 评估生物膜的形成,凝酶和血解素的产生.
- 使用皮尔森系数进行抗生素敏感性测试和相关性分析.
主要成果:
- 66%的E. faecalis分离物形成生物膜;24%是强有力的生产者.
- 完全抵抗美트로尼达;对阿莫西西林 - 克拉夫兰酸,万科米辛,皮佩拉西林 - 塔扎巴克坦敏感.
- 对安皮西林 (44%),红色素 (60%),四环素 (64%),西普洛素 (66%) 的耐药性高.
- 生物膜形成和抗生素敏感性之间存在强烈的负相关性 (r = -0.88).
结论:
- 在持续的根管感染中,E. faecalis生物膜的产生至关重要,并且与抗生素耐药性有关.
- 强化消毒和以生物膜为重点的策略对于再处理是必要的.
- 这些方法可以改善治疗结果并降低再感染风险.
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