Electrolyzed water (EW) has been introduced as a surface disinfectant due to its antimicrobial properties without cytotoxic effects to oral tissues contrary to sodium hypochlorite (NaOCl), which is cytotoxic and can be detrimental if extruded beyond the root canal. This scoping review aimed to compare antimicrobial efficacy of EW with NaOCl on root canal pathogens and to assess effect of concentration and exposure time on antimicrobial efficacy. The review was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews protocol guidelines. Electronic databases were searched for eligible articles published between 2011-2021 in PubMed, PLOS, Science Direct, and Google Scholar. Joanna Briggs Institute Critical Appraisal Tool was used for quality assessment. Of the 784 articles recovered, only 8 were eligible based on inclusion criteria. The included studies assessed several types of EW, which showed antimicrobial potential against E. faecalis in vitro in suspension and biofilm forms. EW demonstrated antimicrobial efficacy comparable with NaOCl in 5 of 8 studies. Only one study found that higher concentration and exposure time increased antimicrobial efficacy of EW; other studies showed otherwise. It can be concluded that EW can be a potential alternative solution for NaOCl as an endodontic irrigant.

THERAPEUTIC EFFECT OF NATURAL HERBS IN DENTISTRY: A NARRATIVE REVIEW Objectives: Natural herbs have increased attention due to their therapeutic and general health-improving qualities as reported in the literature. This review paper aims to explore the therapeutic effects of natural herbs in dentistry and to describe the various herbal sources, active compounds and its dental applications. Methodology: A literature search was conducted using WoS, Pubmed, and Scopus with the search terms ‘herbal’ AND ‘dentistry’ AND ‘alternative treatment’. Articles related to natural herbs and dental applications from the past 15 years until September 2023 were gathered. The inclusion criteria for this study were in-vitro experiments and clinical studies. Result: 512 articles were extracted from the search with 128 falling under the inclusion criteria (86 in-vitro experiments and 42 clinical studies). It was observed that 15 therapeutic properties were extensively examined, with antimicrobial studies being the most prevalent (50.0%), while the least explored properties were pulp-capping and obturation material (0.8%). Diseases such as denture stomatitis, oral candidiasis, and gingivitis were highly reported to have benefited from natural herbal medicine as an alternative treatment option. Herbals such as propolis, green tea, ginger, Zataria multiflora, chitosan, garlic, Artemisia, Schinus terebinthifolius Raddi, Uncaria tomentosa, Punica granatum, and Ricinus communis were found to be useful in the treatment of denture stomatitis. Rhizoma imperatae extract has been added to oral care products and has shown an excellent effect on reducing gingivitis. Pistacia atlantica extract mouthwash was reported to be effective against dental plaque bacteria and subgingival microorganisms. Conclusion: Numerous natural herbs have been extensively documented to have therapeutic effects in certain dental diseases as supported by laboratory and clinical studies. However, comprehensive guides such as the clinical indications, therapeutic doses and application methods were with minimal evidence that can be derived from the literature. More extensive clinical trials are to be conducted on the therapeutic efficacy of natural herbs in dentistry.