Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
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Disinfectant effectiveness of chlorhexidine gel compared to sodium hypochlorite: a systematic review with meta-analysis

  • Theodoro Weissheimer (Department of Endodontics, School of Dentistry, Federal University of Rio Grande do Sul (UFRGS)) ;
  • Karem Paula Pinto (Department of Endodontics, School of Dentistry, Rio de Janeiro State University (UERJ)) ;
  • Emmanuel Joao Nogueira Leal da Silva (Department of Endodontics, School of Dentistry, Rio de Janeiro State University (UERJ)) ;
  • Lina Naomi Hashizume (Department of Preventive and Social Dentistry, Federal University of Rio Grande do Sul (UFRGS)) ;
  • Ricardo Abreu da Rosa (Department of Endodontics, School of Dentistry, Federal University of Rio Grande do Sul (UFRGS)) ;
  • Marcus Vinicius Reis So (Department of Endodontics, School of Dentistry, Federal University of Rio Grande do Sul (UFRGS))
  • Received : 2023.05.26
  • Accepted : 2023.09.07
  • Published : 2023.11.30
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Abstract

This study aimed to compare the disinfectant ability of chlorhexidine (CHX) gel and sodium hypochlorite (NaOCl). Systematic searches were conducted from inception until December 8th, 2022 (MEDLINE/PubMed, Cochrane Library, Web of Science, Scopus, Embase, and Grey Literature databases). Only randomized clinical trials were included. The revised Cochrane risk of bias tools for randomized trials were used to assess the quality of studies. Meta-analyses were performed. The overall quality of evidence was assessed through the Grading of Recommendations Assessment, Development, and Evaluation tool. Six studies were included. Five had a low risk of bias and 1 had some concerns. Three studies assessed bacterial reduction. Two were included in the meta-analysis for bacterial reduction (mean difference, 75.03 [confidence interval, CI, -271.15, 421.22], p = 0.67; I2 = 74%); and 3 in the meta-analysis for cultivable bacteria after chemomechanical preparation (odds ratio, 1.03 [CI, 0.20, 5.31], P = 0.98; I2 = 49%). Five studies assessed endotoxin reduction. Three were included in a meta-analysis (mean difference, 20.59 [CI, -36.41, 77.59], p = 0.48; I2 = 74%). There seems to be no difference in the disinfectant ability of CHX gel and NaOCl, but further research is necessary.

Keywords

References

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