In-vitro activity of sodium-hypochlorite gel on bacteria associated with periodontitis.

Jurczyk, Karolina; Nietzsche, Sandor; Ender, Claudia; Sculean, Anton; Eick, Sigrun (2016). In-vitro activity of sodium-hypochlorite gel on bacteria associated with periodontitis. Clinical oral investigations, 20(8), pp. 2165-2173. Springer 10.1007/s00784-016-1711-9

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OBJECTIVES The aim of the present study was to assess the antimicrobial activity of a sodium hypochlorite formulation including its components against bacteria associated with periodontal disease. MATERIALS AND METHODS Sodium hypochlorite formulation (NaOCl gel), its components sodium hypochlorite (NaOCl), and the activating vehicle were compared with 0.1 % chlorhexidine digluconate (CHX) solution. The antimicrobial activity was proven by determination of minimal inhibitory concentrations (MIC), minimal bactericidal concentrations, and killing assays. Furthermore, the influence on formation as well as on a 4-day-old 6-species biofilm was tested. RESULTS Except for one strain (Parvimonas micra ATCC 33270 in case of NaOCl gel), the MICs both of the CHX solution and NaOCl gel did not exceed 10 % of the formulations' concentration. In general, MICs of the NaOCl gel were equal as of the CHX solution against Gram-negatives but higher against Gram-positive bacteria. CHX but not NaOCl gel clearly inhibited biofilm formation; however, the activity of NaOCl gel was more remarkable on a 4-day-old biofilm. NaOCl killed bacteria in the biofilm and interfered with the matrix. CONCLUSIONS The NaOCl gel acts antimicrobial in particular against Gram-negative species associated with periodontitis. Moreover, its component NaOCl hypochlorite is able to alter biofilm matrices. CLINICAL RELEVANCE The NaOCl gel may represent a potential alternative for adjunctive topical antimicrobial treatment in periodontitis.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology
04 Faculty of Medicine > School of Dental Medicine
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04 Faculty of Medicine > School of Dental Medicine > School of Dental Medicine, Periodontics Research

UniBE Contributor:

Jurczyk, Karolina; Sculean, Anton and Eick, Sigrun

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1432-6981

Publisher:

Springer

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

23 Jan 2017 09:25

Last Modified:

01 Feb 2017 12:26

Publisher DOI:

10.1007/s00784-016-1711-9

PubMed ID:

26759339

Uncontrolled Keywords:

Biofilm, Periodontal infection, Sodium hypochlorite

BORIS DOI:

10.7892/boris.91309

URI:

https://boris.unibe.ch/id/eprint/91309

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