Cyprus Journal of Medical Sciences
Original Article

Comparative Antibacterial Capabilities of Origanum Onites Oil and Diode Laser against Enterecoccus faecalis Contaminated Primary Root Canals


Department of Pediatric Dentistry, Near East University Faculty of Dentistry, Northern Nicosia, North Cyprus


Research Center of Experimental Health Sciences, Near East University, Northern Nicosia, North Cyprus


Department of Nutrition and Dietetics, Near East University Faculty of Health Sciences, Northern Nicosia, North Cyprus


Department of Pharmacognosy, Near East University Faculty of Pharmacy, Northern Nicosia, Northern Cyprus


Department of Pediatric Dentistry, Kyrenia University Faculty of Dentistry, Kyrenia, North Cyprus

Cyprus J Med Sci 2021; 6: 237-243
DOI: 10.5152/cjms.2021.1136
Read: 216 Downloads: 75 Published: 18 October 2021

Enterecoccus faecalis is the most dominant and most isolated resistant species from infected/failed permanent teeth undergoing root canal therapy or painful primary teeth with periapical radiolucency. The main purpose of the present research was to compare the antimicrobial effectiveness of essential oil of Origanum onites and diode laser irradiation against E. faecalis removal from primary root canals.

A total of 60 retained human primary incisors were selected randomly and divided into six experimental groups as follows: Group 1: negative control; Group 2: positive control; Group 3: sodium hypochlorite (NaOCl); Group 4: diode laser; Group 5: Origanum onites (OO) oil; Group 6: diode laser þ OO oil. The gas chromatography–mass spectrometry (GC–MS) and GC analyses of OO oil were carried out with an Agilent 5977B GC-MSD and Agilent 7890B GC systems, respectively. A 2-W diode laser was used in a continuous action mode with a wavelength of 980nm for 20 seconds. NaOCl and OO oil were applied continuously for 5 minutes to each root canal. Multiple comparisons and the significances between experimental groups were statistically analyzed using Tukey’s multiple comparisons test. The level of significance was accepted at .05 for the entire statistical analysis (P ¼ .05).

The major reductions were observed in the groups of NaOCl (98.3%) and diode laser þ Origanum onites oil combination (92.5%).

Combined therapy of diode laser irradiation following Origanum onites oil application in primary root canal disinfection may be used as an ideal effective chemo-mechanical alternative to NaOCl irrigation.

Cite this article as: _Islam A, Susever S, Hanog˘lu DY, Baser KHC, C etiner S. Comparative Antibacterial Capabilities of Origanum Onites Oil and Diode Laser against Enterecoccus faecalis Contaminated Primary Root Canals. Cyprus J Med Sci. 2021; 6(3): 237-243.

ISSN 2149-7893 EISSN 2536-507X