华西口腔医学杂志

• 临床研究 • 上一篇    下一篇

根管中真菌感染的检测

刘虹,姚志刚,谢晓莉,王树芝   

  1. 410008  中南大学湘雅医院口腔系
  • 收稿日期:2002-12-25 修回日期:2002-12-25 出版日期:2002-12-20 发布日期:2002-12-20

Detection of Fungi in Infected Root Canals

Liu Hong, Yao Zhigang, Xie Xiaoli, et al   

  1. The Department of Stomatology, Xiangya Hospital, the Central South University
  • Received:2002-12-25 Revised:2002-12-25 Online:2002-12-20 Published:2002-12-20

摘要:

目的:检测真菌在感染根管中的阳性率,探讨真菌与患牙临床症状及体征间的关系。方法:将患急性根尖脓肿、慢性根尖周炎、牙髓坏死、坏疽和慢性牙髓炎的患牙109颗,取根髓标本涂片,固定后过碘酸雪夫氏染色法(PAS)染色。记录临床资料及患牙的PAS染色结果并作统计学分析。结果:109颗患牙中PAS阳性率28.44%,露髓与未露髓牙间PAS阳性率差异有显著性;PAS染色结果与临床症状、体征无明显关系。结论:因龋齿和楔状缺损导致露髓或近髓患牙的根管中存在真菌的可能性较大。

关键词: 感染, 根管, 真菌, PAS染色

Abstract:

Objective:The aim of this study was to detect fungi in infected root canals and possible correlation between penetration of fungi and clinical symptoms and signs. Methods: One hundred and nine cases of canals with necrotic pulp were selected for this study. After smearing, fixing and staining, the root canals were treated with periodic-acid-schiffs (PAS) method. Finally, the samples were observed under a microscope and the clinical data and results of PAS staining were analyzed. Results: The positive rate of PAS staining was 28.44% . Remarkable differences were demonstrated in positive rates between exposed and unexposed canals. There was no obvious correlation between the results of PAS staining and clinical symptoms and signs. Conclusion: Fungi could exist in the root canals which were infected through caries, cuneiform defect and etc.

Key words: root canal, infection, fungi, PAS staining