Clinical and Microbiological Effects of a Mouthwash Containing Chlorine Dioxide

NCT ID: NCT00748943

Last Updated: 2008-09-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

15 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-03-31

Study Completion Date

2007-06-30

Brief Summary

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Previous research has shown the oxidizing properties and microbiological efficacies of chlorine dioxide (ClO2). However, no clinical studies have investigated its microbiological efficacies on periodontal and malodorous bacteria. The aim of this study was to assess the inhibitory effects of a mouthwash containing ClO2 on morning oral malodor and on salivary periodontal and malodorous bacteria using for 7 days.

Detailed Description

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Background: Previous research has shown the oxidizing properties and microbiological efficacies of chlorine dioxide (ClO2). Its clinical efficacies on oral malodor have been evaluated and reported, however, no clinical studies have investigated its microbiological efficacies on periodontal and malodorous bacteria. The aim of this study was to assess the inhibitory effects of a mouthwash containing ClO2 on morning oral malodor and on salivary periodontal and malodorous bacteria using for 7 days.

Methods: A randomized, double blind, crossover, placebo-controlled clinical trial was conducted among 15 healthy male volunteers, who were divided into 2 groups. In the first test phase, the group 1 subjects (N = 8) were instructed to rinse with the experimental mouthwash containing ClO2 twice per day for 7 days, and those in group 2 (N = 7) to rinse with the control (placebo) mouthwash without ClO2. In the second test, phase after a one week washout period, each group had used the opposite mouthwash for 7 days. At baseline and after 7 days, oral malodor was evaluated with OM, and concentrations of hydrogen sulfide (H2S), methyl mercaptan (CH3SH) and dimethyl sulfide ((CH3)2S), the main VSCs of human oral malodor, were evaluated with GC. Clinical outcome variables included plaque and gingival indices, and the Winkel Tongue Coating Index(WTCI). The samples of saliva were microbiologically investigated.

Outcome variables were compared by t-test and Mann-Whitney test.

Conditions

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Halitosis

Keywords

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chlorine dioxide mouthwash halitosis bacteria saliva

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Interventions

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Chlorine Dioxide

Experimental mouthwash (ClO2 Fresh®) contained 0.16% sodium chlorite (NaClO2)

Intervention Type OTHER

Other Intervention Names

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ClO2 Fresh®

Eligibility Criteria

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Inclusion Criteria

* Clinical diagnosis of oral malodor

Exclusion Criteria

* Oral malodor caused by foods
Minimum Eligible Age

19 Years

Maximum Eligible Age

38 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Tokyo Medical and Dental University

OTHER

Sponsor Role lead

Responsible Party

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Dept. of Oral health promotion, Tokyo medical and dental university

Principal Investigators

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Kayoko Shinada, DDS,phD

Role: PRINCIPAL_INVESTIGATOR

Dept. of Oral health promotion, Tokyo medical and dental university

References

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Shinada K, Ueno M, Konishi C, Takehara S, Yokoyama S, Zaitsu T, Ohnuki M, Wright FA, Kawaguchi Y. Effects of a mouthwash with chlorine dioxide on oral malodor and salivary bacteria: a randomized placebo-controlled 7-day trial. Trials. 2010 Feb 12;11:14. doi: 10.1186/1745-6215-11-14.

Reference Type DERIVED
PMID: 20152022 (View on PubMed)

Other Identifiers

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2_Shinada

Identifier Type: -

Identifier Source: secondary_id

2_Shinada

Identifier Type: -

Identifier Source: org_study_id