Comparative antimicrobial efficacy of oregano oil, chlorhexidine, and sodium hypochlorite against Enterococcus faecalis : An in vitro study

Endodontology

article

Teja, Kavalipurapu Venkata¹  Janani, Krishnamachari²  Kaligotla, Vasundhara Apoorva³  Harini, Krishnamachari¹ 

[1] Department of Conservative Dentistry and Endodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University;Department of Conservative Dentistry and Endodontics, Private Consultant, Anna University;Department of prosthodontics and implantology, Sibar Institute of Dental Science

关键词: Chlorhexidine;    Enterococcus faecalis;    essential oil;    sodium hypochlorite;   

DOI  :  10.4103/endo.endo_124_20

学科分类：材料科学（综合）

来源: Wolters Kluwer Medknow Publications

【 摘 要 】

Objective:  The purpose of this study was to evaluate the comparative antibacterial efficacy of 0.2% oregano oil, 2% chlorhexidine (CHX), and 3% sodium hypochlorite (NaOCl) in disinfection of dentin tubules contaminated with Enterococcus faecalis. Materials and Method:  One hundred and twenty human extracted anterior teeth were infected with E. faecalis for 21 days. They were assigned into three groups (n = 40) – Group 1: 3% NaOCl, Group 2: 2% CHX, and Group 3: 0.2% oregano oil. Disinfection protocol was followed using 31-gauge side-vented needle. After chemomechanical preparation, the apical 5 mm of the roots was removed frozen in liquid nitrogen and pulverized to expose E. faecalis in dentinal tubules. The number of colony-forming units of E. faecalis per mg dentin was determined. The data were analyzed statistically. Results:  Zone of inhibition of oregano oil was found to be 15 mm, and the values were significant in Group III (P < 0.05) as compared to the other groups assessed. Conclusion:  Within the study's limitation, 0.2% oregano oil showed better disinfection property against E. faecalis among tested irrigants. Therefore, it can be used as an effective alternative root canal irrigant.

【 授权许可】

CC BY-NC-SA