Alcohol-free Essential Oils Containing Mouthrinse Efficacy on 3-day Supragingival Plaque Regrowth

NCT ID: NCT02894593

Last Updated: 2016-12-15

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

NA

Total Enrollment

21 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-01-31

Study Completion Date

2016-07-31

Brief Summary

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The purpose of this study is to evaluate the antiplaque effects of an alcohol-free essential-oil containing mouthrinse - Listerine Zero (LZ) and an alcohol-based essential oils (EO+) mouthwash compared to a positive control of 0.20% chlorhexidine (CHX) mouthwash, and a negative control of a placebo solution (saline), using an in vivo plaque regrowth model of 3 days.

Detailed Description

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Plaque is a biofilm of microorganisms responsible for the development of caries and periodontal disease. The daily removal of supragingival dental plaque represents a major factor in the prevention of caries, gingivitis and periodontitis. Plaque control is largely obtained by daily effective tooth brushing and inter-dental cleaning, but in some cases plaque removal can be improved by adding the use of a mouthwash.

An effective action of chemical formulation (especially antiseptics) to control plaque and gingivitis levels has been proved.

Most mouthwashes contain an alcohol (especially ethanol) in order to act as a carrier agent for active essential oils to penetrate the plaque, and to give the subject a "clean mouth sensation".

The alcohol content of mouthwashes, besides having antiseptic properties, serves the purpose of breaking down or dissolving active principles, in addition to that of preserving the formula components, although such content does not directly contribute to effective biofilm and gingivitis control.

However, there are some contraindications in the use of alcohol-based mouthwashes, like the use by infants, pregnant women, alcohol addicts and patients with mucosal injuries. There are also some undesirable effects, like burning or sore sensation, or a painful sensation for patients with existing soft tissue injuries, or a perception of dryness in the mouth.

In order to avoid the use of alcohol-based mouthwashes in particular conditions, scientific interest is becoming more widespread in introducing a mouthrinse with strong anti-plaque qualities and no alcoholic ingredients.

One of these product is the alcohol-free essential oil mouthwash Listerine Zero (LZ), that has little documentation with regard to its anti-plaque effects.

The aim of this study was to evaluate the antiplaque effects of an alcohol-free essential oil mouthwash (Listerine Zero, LZ) and a alcohol-based essential oil mouthwash (EO+), compared to a positive control of a 0.2% chlorhexidine mouthwash (CHX), and a negative control of a placebo solution (saline), using an in vivo plaque regrowth model of 3 days.

The study was designed as a double-masked, randomized, crossover clinical trial, involving 21 volunteers to compare four different mouthwashes, using a 3-day plaque regrowth model. After receiving thorough professional prophylaxis at baseline, over the next 3 days, each volunteer refrained from all oral hygiene measures and performed two daily rinses with 15 ml of the test mouthwashes. EO+ was compared to LZ. CHX rinse served as a positive control, and a placebo solution as a negative control. At the end of each experimental period, plaque index (PI) was assessed, and a panelists completed through a visual analogue scale (VAS) questionnaire evaluating the organoleptic properties of each product. Each subject underwent a 14-day washout period, and then there was another allocation.

Conditions

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Gingivitis Periodontitis

Keywords

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Antiplaque agents chemical plaque control oral hygiene essential oils alcohol mouthwash

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Caregivers

Study Groups

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alcohol essential oils mouthwash

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

Group Type OTHER

alcohol essential oils mouthwash

Intervention Type OTHER

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

0.20% chlorhexidine mouthwash

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

Group Type ACTIVE_COMPARATOR

0.20% chlorhexidine mouthwash

Intervention Type OTHER

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

Placebo

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type OTHER

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

alcohol free essential oils mouthwash

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

Group Type EXPERIMENTAL

alcohol free essential oils mouthwash

Intervention Type OTHER

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

Interventions

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alcohol free essential oils mouthwash

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

Intervention Type OTHER

alcohol essential oils mouthwash

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

Intervention Type OTHER

0.20% chlorhexidine mouthwash

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

Intervention Type OTHER

Placebo

All subjects were instructed to rinse twice a day, in the morning and in the evening, with 15 ml solution for 60 seconds, after which they expectorated. Subsequent rinsing with water was not allowed.

Intervention Type OTHER

Other Intervention Names

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Listerine Zero, Johnson & Johnson Consumer Inc. Listerine, Johnson & Johnson Consumer Inc. Meridol Chlorhexidine 0.20, GABA International AG

Eligibility Criteria

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Inclusion Criteria

* dentition with ≥ 20 evaluable teeth (minimum of five teeth per quadrant)
* age between 20 and 50 years old

Exclusion Criteria

* oral lesions
* severe periodontal problems (probing depth ≥5 mm or attachment loss \>2 mm)
* removable prostheses or orthodontic bands/ or appliances
* Subjects allergic to several mouthrinse
Minimum Eligible Age

20 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of L'Aquila

OTHER

Sponsor Role lead

Responsible Party

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Enrico Marchetti

Adjunct Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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GIUSEPPE MARZO, DMD

Role: STUDY_CHAIR

University of L'Aquila

Locations

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University of L'Aquila, Division of Periodontology

L’Aquila, AQ, Italy

Site Status

Countries

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Italy

References

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Marchetti E, Mummolo S, Di Mattia J, Casalena F, Di Martino S, Mattei A, Marzo G. Efficacy of essential oil mouthwash with and without alcohol: a 3-day plaque accumulation model. Trials. 2011 Dec 15;12:262. doi: 10.1186/1745-6215-12-262.

Reference Type RESULT
PMID: 22171999 (View on PubMed)

Marchetti E, Casalena F, Capestro A, Tecco S, Mattei A, Marzo G. Efficacy of two mouthwashes on 3-day supragingival plaque regrowth: a randomized crossover clinical trial. Int J Dent Hyg. 2017 Feb;15(1):73-80. doi: 10.1111/idh.12185. Epub 2015 Nov 2.

Reference Type RESULT
PMID: 26522915 (View on PubMed)

Paraskevas S, Rosema NA, Versteeg P, Van der Velden U, Van der Weijden GA. Chlorine dioxide and chlorhexidine mouthrinses compared in a 3-day plaque accumulation model. J Periodontol. 2008 Aug;79(8):1395-400. doi: 10.1902/jop.2008.070630.

Reference Type RESULT
PMID: 18672988 (View on PubMed)

Charles CA, Amini P, Gallob J, Shang H, McGuire JA, Costa R. Antiplaque and antigingivitis efficacy of an alcohol-free essential-oil containing mouthrinse: a 2-week clinical trial. Am J Dent. 2012 Aug;25(4):195-8.

Reference Type RESULT
PMID: 23082381 (View on PubMed)

Marchetti E, Tecco S, Caterini E, Casalena F, Quinzi V, Mattei A, Marzo G. Alcohol-free essential oils containing mouthrinse efficacy on three-day supragingival plaque regrowth: a randomized crossover clinical trial. Trials. 2017 Mar 31;18(1):154. doi: 10.1186/s13063-017-1901-z.

Reference Type DERIVED
PMID: 28359280 (View on PubMed)

Other Identifiers

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RCT_001_16

Identifier Type: -

Identifier Source: org_study_id