Trial Outcomes & Findings for Bad Breath Response to Tongue Scraper and Rinses (NCT NCT00867035)
NCT ID: NCT00867035
Last Updated: 2013-05-16
Results Overview
2 investigators are trained to evaluate smell using the Rosenberg scale which measures foul smelling breath. The Rosenberg scale is validated and is scored 0-5 with 0= no bad breath, 5=worst bad breath. A score of 2 is the threshold at which bad breath is determined.
COMPLETED
NA
22 participants
baseline, 1 hour, 2 hours, 4 hours, 1 week
2013-05-16
Participant Flow
Screening in dental clinic March 2008-March 2009. With organoleptic(OLT)score of 2 or more, or 75parts per billion(ppb) hydrogen sulfide(H2S), subjects invited to enter clinical trial. Subjects numbered in sequence from a computer-generated table of random numbers.
Exclusions: 1)Inability to return for evaluation, 2)inability to follow directions, 3) afflicted with systemic disease involving volatile sulfur compounds (VSC), 4)currently taking antibiotics, 5) using medicine in syrup form, 6) advanced periodontal disease, 7) smoker.
Participant milestones
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Baseline to 1 Hour
STARTED
|
13
|
9
|
|
Baseline to 1 Hour
COMPLETED
|
12
|
8
|
|
Baseline to 1 Hour
NOT COMPLETED
|
1
|
1
|
|
Baseline to 2 Hours
STARTED
|
12
|
8
|
|
Baseline to 2 Hours
COMPLETED
|
12
|
8
|
|
Baseline to 2 Hours
NOT COMPLETED
|
0
|
0
|
|
Baseline to 4 Hours
STARTED
|
12
|
8
|
|
Baseline to 4 Hours
COMPLETED
|
12
|
8
|
|
Baseline to 4 Hours
NOT COMPLETED
|
0
|
0
|
|
Baseline to 1 Week
STARTED
|
12
|
8
|
|
Baseline to 1 Week
COMPLETED
|
11
|
8
|
|
Baseline to 1 Week
NOT COMPLETED
|
1
|
0
|
Reasons for withdrawal
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Baseline to 1 Hour
Withdrawal by Subject
|
1
|
1
|
|
Baseline to 1 Week
Withdrawal by Subject
|
1
|
0
|
Baseline Characteristics
Bad Breath Response to Tongue Scraper and Rinses
Baseline characteristics by cohort
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=13 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=9 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
Total
n=22 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Age, Categorical
<=18 years
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Age, Categorical
Between 18 and 65 years
|
13 Participants
n=5 Participants
|
9 Participants
n=7 Participants
|
22 Participants
n=5 Participants
|
|
Age, Categorical
>=65 years
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Sex: Female, Male
Female
|
4 Participants
n=5 Participants
|
3 Participants
n=7 Participants
|
7 Participants
n=5 Participants
|
|
Sex: Female, Male
Male
|
9 Participants
n=5 Participants
|
6 Participants
n=7 Participants
|
15 Participants
n=5 Participants
|
|
Region of Enrollment
United States
|
13 participants
n=5 Participants
|
9 participants
n=7 Participants
|
22 participants
n=5 Participants
|
|
Rosenberg score of 2 or more
|
13 participants
n=5 Participants
|
9 participants
n=7 Participants
|
22 participants
n=5 Participants
|
PRIMARY outcome
Timeframe: baseline, 1 hour, 2 hours, 4 hours, 1 weekPopulation: two judges score breath odor by Rosenberg scale 0 to 5. Score of 2 is threshold for malodor. participants randomly assigned, ITT.
2 investigators are trained to evaluate smell using the Rosenberg scale which measures foul smelling breath. The Rosenberg scale is validated and is scored 0-5 with 0= no bad breath, 5=worst bad breath. A score of 2 is the threshold at which bad breath is determined.
Outcome measures
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=13 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=9 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Percentage of Participants With Rosenberg Score at Indicated Time Points
Percentage with score of 0 or 1 at 1 hour
|
79 percentage of participants
|
100 percentage of participants
|
|
Percentage of Participants With Rosenberg Score at Indicated Time Points
Percentage with score of 0 or 1 at 2 hours
|
79 percentage of participants
|
94 percentage of participants
|
|
Percentage of Participants With Rosenberg Score at Indicated Time Points
Percentage with score of 0 or 1 at 4 hours
|
54 percentage of participants
|
81 percentage of participants
|
|
Percentage of Participants With Rosenberg Score at Indicated Time Points
Percentage with score of 0 or 1 at 1 week
|
64 percentage of participants
|
81 percentage of participants
|
|
Percentage of Participants With Rosenberg Score at Indicated Time Points
Percentage with score of 2 or 3 at Baseline
|
96 percentage of participants
|
74 percentage of participants
|
SECONDARY outcome
Timeframe: 1hrPopulation: ITT
Using portable gas chromatograph
Outcome measures
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=13 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=9 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Concentration of Hydrogen Sulfide (H2S) in Mouth Air at 1 Hour
|
10.1 parts per billion (ppb)
Standard Deviation 18.6
|
9.12 parts per billion (ppb)
Standard Deviation 13.9
|
SECONDARY outcome
Timeframe: 2hrPopulation: ITT
Using portable gas chromatograph
Outcome measures
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=12 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=8 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Concentration of Hydrogen Sulfide (H2S) in Mouth Air at 2 Hours
|
12.7 parts per billion (ppb)
Standard Deviation 12.9
|
3.88 parts per billion (ppb)
Standard Deviation 7.57
|
SECONDARY outcome
Timeframe: 4 hoursPopulation: ITT
Using portable gas chromatograph
Outcome measures
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=12 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=8 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Concentration of Hydrogen Sulfide (H2S) in Mouth Air at 4 Hours
|
12.7 parts per billion (ppb)
Standard Deviation 16.1
|
7.0 parts per billion (ppb)
Standard Deviation 9.99
|
SECONDARY outcome
Timeframe: 1 weekPopulation: ITT
Using portable gas chromatograph
Outcome measures
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=11 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=8 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Concentration of Hydrogen Sulfide (H2S) in Mouth Air at 1 Week
|
9.17 parts per billion (ppb)
Standard Deviation 13.1
|
20.2 parts per billion (ppb)
Standard Deviation 29.6
|
SECONDARY outcome
Timeframe: 1 hourPopulation: ITT
Using portable gas chromatograph
Outcome measures
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=13 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=9 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Concentration of Methyl Mercaptan (MM) in Mouth Air at 1 Hour
|
17.5 parts per billion (ppb)
Standard Deviation 27.0
|
36.0 parts per billion (ppb)
Standard Deviation 51.0
|
SECONDARY outcome
Timeframe: 2 hoursUsing portable gas chromatograph
Outcome measures
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=12 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=8 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Concentration of Methyl Mercaptan (MM) in Mouth Air at 2 Hours
|
14.5 parts per billion
Standard Deviation 27.4
|
23.9 parts per billion
Standard Deviation 33.5
|
SECONDARY outcome
Timeframe: 4 hoursPopulation: ITT
Using portable gas chromatograph
Outcome measures
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=12 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=8 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Concentration of Methyl Mercaptan (MM) in Mouth Air at 4 Hours
|
14.4 parts per billion
Standard Deviation 21.2
|
6.88 parts per billion
Standard Deviation 9.42
|
SECONDARY outcome
Timeframe: 1 weekPopulation: ITT
Using portable gas chromatograph
Outcome measures
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=11 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=8 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Concentration of Methyl Mercaptan (MM) in Mouth Air at 1 Week
|
9.75 parts per billion
Standard Deviation 16.6
|
2.12 parts per billion
Standard Deviation 3.64
|
SECONDARY outcome
Timeframe: 1 weekPopulation: ITT
Total viable count(TVC) in colony forming units(CFU) on anaerobe agar
Outcome measures
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=11 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=8 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Number of Bacteria on Tongue at 1 Week
|
15500000 colony forming units (CFU)
Standard Deviation 25400000
|
28400000 colony forming units (CFU)
Standard Deviation 65400000
|
SECONDARY outcome
Timeframe: 1 weekPopulation: ITT
Outcome measures
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=11 Participants
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=8 Participants
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Percentage of Sulfide-producing Black Colonies Out of Total Viable Count(TVC) on Anaerobe Agar Containing Lead Acetate
|
43.1 percentage black colonies
Standard Deviation 22.8
|
27.8 percentage black colonies
Standard Deviation 15.6
|
Adverse Events
Chlorine Dioxide Rinse and Tongue Scraper
Chlorhexidene Rinse and Tongue Scraper
Serious adverse events
Adverse event data not reported
Other adverse events
| Measure |
Chlorine Dioxide Rinse and Tongue Scraper
n=13 participants at risk
20ml of a stabilized 0.1% chlorine dioxide mouthrinse is used after use of tongue scraper twice a day
|
Chlorhexidene Rinse and Tongue Scraper
n=9 participants at risk
20ml of 0.12% chlorhexidine gluconate mouthrinse is used after tongue scraping twice a day
|
|---|---|---|
|
Nervous system disorders
Effect on taste threshhold
|
0.00%
0/13
|
11.1%
1/9 • Number of events 1
|
Additional Information
Milton Robert Wirthlin, DDS, MS
Department of Orofacial Sciences, University of California, San Francisco
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place