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Plaque Inhibitory Effect of Neutral Electrolysed Water in the Form of a Mouthwash in a 4-day Non-brushing Model

Evaluation of a Mouthwash Formulation Containing Neutral Electrolysed Water on De-novo Plaque Formation, Gingival Inflammation, MMP-8 Activity and the Oral Microbiome

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05709015
Enrollment
16
Registered
2023-02-01
Start date
2023-01-05
Completion date
2023-06-21
Last updated
2023-07-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gingivitis

Brief summary

Electrolysed water (EOW) is produced by the electrolysis of sodium chloride in an aqueous solution, producing chlorine gas at the anode and sodium hydroxide and hydrogen at the cathode. EOW is known to have antimicrobial effects against various microorganisms, including viruses, bacteria, spores and fungi. Its antimicrobial activity is generally attributed to its hypochloric acid content - a product of chlorine gas dissolved in water. Due to its biocompatibility, known uses of EOW include ocular disinfection, nasal irrigation and chronic cutaneous wound care. In the dental setting, it may be used as a mouthwash, disinfectant, irrigant, mouthwash or dental gel. The aim of this study is to investigate the effect of a mouthwash containing neutral electrolyzed water on plaque accumulation (evaluated using a disclosing agent and an intraoral scanner), gingival inflammation, MMP-8 activity and the oral microbiome. In this double-blind, cross-over, 4-day experimental gingivitis model, each subject will participate in all three arms of the study. Each arm will last 4 days, during which the subjects will be asked to refrain from toothbrushing and the use of interdental cleaning devices. Instead, they will be instructed to rinse their oral cavities twice daily with either EOW, placebo or a positive control (chlorhexidine), according to a randomisation chart (each subject will receive a different mouthwash type in every arm of the study). The outcomes will be assessed at baseline and after 4 days. A washout period of at least 7 days will be implemented between each study arm.

Interventions

OTHERNeutral electrolyzed water

Use of mouthwash containing neutral electrolyzed water twice daily for 4 consecutive days instead of tooth brushing and usage of interdental cleaning devices.

DRUGPlacebo

Use of mouthwash containing placebo twice daily for 4 consecutive days instead of tooth brushing and usage of interdental cleaning devices.

Use of mouthwash containing chlorhexidine digluconate twice daily for 4 consecutive days instead of tooth brushing and usage of interdental cleaning devices.

Sponsors

University of Ljubljana
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
20 Years to 30 Years
Healthy volunteers
Yes

Inclusion criteria

* age 20 - 30 years, * non-smoker, * systemically healthy, * without regular systemic medication, * presence of at least 6 teeth in each jaw quadrant, * plaque index \< 10 % at baseline visit, * absence of periodontal pockets measuring \> 4 mm.

Exclusion criteria

* known allergy or suspected hypersensitivity to chlorhexidine digluconate, * gingivitis, * regularly use of mouthwash as part of oral hygiene routine, * antibiotic treatment in the last 6 months or during the observation period, * pregnancy or lactation, * fixed or removable prosthetic devices, dental implants.

Design outcomes

Primary

MeasureTime frameDescription
3D plaque scorebaseline, 4 daysDifferences in plaque scores evaluated by optical scanning
Plaque indexbaseline, 4 daysDifferences on plaque score evaluated using the Turesky Modification of the Quigley-Hein Plaque Index

Secondary

MeasureTime frameDescription
Modified Gingival Indexbaseline, 4 daysDifferences in the gingival index evaluated using the Lobene Modified Gingival Index
Microbiologic profile of gingival crevicular fluidbaseline, 4 daysTo determine if the mouthwashes effect the presence of the most relevant periodontal pathogens (e. g. Aggregibacter actinomycetemcomitans) in gingival crevicular fluid
MMP-8 in gingival crevicular fluidbaseline, 4 daysTo determine if the mouthwashes effect the amount of MMP-8 in gingival crevicular fluid

Countries

Slovenia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026