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Year : 2020  |  Volume : 10  |  Issue : 6  |  Page : 771-778

Clinical quantitative antibacterial potency of garlic-lemon against sodium hypochlorite in infected root canals: A double-blinded, randomized, controlled clinical trial

Department of Conservative Dentistry and Endodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India

Correspondence Address:
Dr. Riluwan Siddique
Department of Conservative Dentistry and Endodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, 162, Poonamallee High Road, Chennai 600077, Tamil Nadu.
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jispcd.JISPCD_287_20

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Introduction: Sodium hypochlorite for endodontic treatment has been shown to exhibit significant antimicrobial properties, with adverse effects such as sodium hypochlorite accidents. Natural irrigants have shown significant antimicrobial action and the added advantage of being biocompatible. This study proposes an alternative intracanal irrigant made from Garlic-Lemon (Ga-Li) extract. Aim: To evaluate the antimicrobial action of 1.8% Garlic-Lemon (Ga-Li) mixture in contrast to 3% sodium hypochlorite in a tooth diagnosed with asymptomatic apical periodontitis. Materials and Methods: Thirty patients were randomly allocated into two groups: Group A, 3% sodium hypochlorite and Group B, 1.8% Garlic-Lemon. Single- or multirooted teeth root canals were instrumented and prepared by using ProTaper Gold. Root canal samples were taken both pre- and postinstrumentation. These samples were subjected to DNA extraction, amplification, and quantification by using a real-time polymerase chain reaction (qPCR). Results: Samples before preparation (S1) were tested positive for microbial presence, with mean numbers of 7.0 ×107 and 12.4 ×107 bacterial cells for the sodium hypochlorite and Garlic-Lemon groups, respectively. Postpreparation (S2), in sodium hypochlorite and Garlic-Lemon groups, bacterial counts were still present with mean counts seen at 27.4 ×105 and 7.7 ×105 bacterial cells, respectively. Intergroup comparison resulted in a statistically insignificant difference (P > 0.05). Conclusion: Garlic-Lemon has shown microbial load reduction that is as effective as sodium hypochlorite, with the highest mean bacterial reduction percentage. The results of the present randomized, controlled clinical trial suggest that Garlic-Lemon is a potential new alternative as an endodontic irrigant.

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