NCT05647369

Brief Summary

Halitosis is the third most common oral condition perceived by the patients as pathologic, after caries and periodontal diseases. Although it is difficult to estimate the prevalence of halitosis in the population due to the different assessment methods, the available descriptive epidemiologic studies estimate that 30-50% of the population experience oral malodor. Pathologic halitosis most commonly (85%) originates from the oral cavity and is a result of bacterial deposits that cover the tongue or are found in the inflamed oral mucosa, under poor-quality restorations, orthodontic mechanisms, carious lesions or mucosal ulcers. Odor usually results from the microbial degradation of organic substrates present in saliva. This interaction generates malodorous volatile sulfur compounds (VSCs), of which the three most common are: hydrogen sulfide (H2S), methyl-mercaptan (CH3SH) and dimethyl sulfide \[(CH3)2S\]. Orthodontic patients with fixed appliances are more prone to halitosis, due to the increased plaque accumulation and the increased amounts of available nutrients for the supragingival and subgingival microbes .

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Dec 2022

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2022

Completed
1 day until next milestone

First Submitted

Initial submission to the registry

December 2, 2022

Completed
10 days until next milestone

First Posted

Study publicly available on registry

December 12, 2022

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2023

Completed
Last Updated

January 14, 2025

Status Verified

January 1, 2025

Enrollment Period

3 months

First QC Date

December 2, 2022

Last Update Submit

January 10, 2025

Conditions

Keywords

HalitosisMasticOrthodontic appliance

Outcome Measures

Primary Outcomes (3)

  • Modified plaque index (PI-M)

    The Silness and Löe index (Silness and Löe, 1964) does not take into account the pattern of plaque accumulation in orthodontic patients. To overcome this problem, Williams et al. (1991) divided the tooth into mesial, distal, gingival, and incisal regions in relation to the bracket and scored plaque in each region using the four codes of the original index (0 to 3). The values are summed to obtain a total score, which ranges from 0 to 12 for each tooth. This modified index is recommended for patients with fixed orthodontic appliances because it acknowledges the usual effects of orthodontic appliances on plaque distribution and has much greater categorical discrimination.

    baseline-2 weeks

  • Gingival index (GI)

    The Gingival Index (GI) is a measure of the severity of gingivitis and is scored by measuring the amount of gingival inflammation, also considering redness and bleeding (Löe \& Silness, 1963).

    baseline-2 weeks

  • VSCs levels {hydrogen sulfide (H2S), methyl-mercaptan (CH3SH) and dimethyl sulfide [(CH3)2S].

    VSCs levels {hydrogen sulfide (H2S), methyl-mercaptan (CH3SH) and dimethyl sulfide \[(CH3)2S\]} will be measured with the OralChromaTM device (NOVATRONIC Deutschland GmbH, Kölner Straße 102, D-51429 Bertogisch Gladbach). The organoleptic evaluation will be done by the patient, due to the current pandemic of the SARS-Covid 19 virus. This assessment will be subjectively based on a scale in printed questionnaires. The objective assessment of the T0-T1 VSCs levels will be done with the OralChromaTM. This chromatograph measured the concentrations of the oral gases H2S, CH3SH and (CH3)2S. The sample will be collected using disposable syringes (1 ml plastic syringes), which will be inserted into the patient's oral cavity. The patients weill be asked to close their mouth for 30 seconds before the samples collection. Then 0.5ml of air will injected from the syringe's intake into the measuring device.

    baseline-2 weeks

Study Arms (2)

Experimental: Group 1

EXPERIMENTAL

Experimental: Experimental group 1: patients, age 13-18, conventional brackets, Mastic mouthwash 15 patients, age 13-18,with conventional brackets,will get Mastic mouthwash

Dietary Supplement: Mastic mouthwash

Control group: Group 2

PLACEBO COMPARATOR

Control group: Group 2 patients, age 13-18, conventional brackets, placebo mouthwash 15 patients, age 13-18,with conventional brackets,will get placebo mouthwash

Dietary Supplement: Placebo mouthwash

Interventions

Mastic mouthwashDIETARY_SUPPLEMENT

All 30 patients will be randomly assigned to either the mastic mouthwash group A (Art of Nature Mastiha Mouthwash, Mastihashop, Greece) (n = 15) or the placebo mouthwash group B (from the same manufacturer) (n = 15) (Table 1). All patients will be asked to use the mouthwash twice a day (10 ml of mouthwash / 2 times a day for 30 sec for 14 days, every morning and every night after brushing) and to maintain their usual oral hygiene routine. The measurements will be done in the morning and at least three hours after brushing and without the use of the mouthwash by the participant on the day of the assessments.

Experimental: Group 1
Placebo mouthwashDIETARY_SUPPLEMENT

All 30 patients will be randomly assigned to either the mastic mouthwash group A (Art of Nature Mastiha Mouthwash, Mastihashop, Greece) (n = 15) or the placebo mouthwash group B (from the same manufacturer) (n = 15) (Table 1). All patients will be asked to use the mouthwash twice a day (10 ml of mouthwash / 2 times a day for 30 sec for 14 days, every morning and every night after brushing) and to maintain their usual oral hygiene routine. The measurements will be done in the morning and at least three hours after brushing and without the use of the mouthwash by the participant on the day of the assessments.

Control group: Group 2

Eligibility Criteria

Age13 Years - 18 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Patients eligible for the trial must comply with all of the following at randomization:
  • Age between 13 and 18 years for the group with conventional orthodontic appliances.
  • This age group represents the majority of patients seeking orthodontic treatment and is homogeneous regarding occupational status (high-school and lyceum students in Greece). Younger patients might present with cooperation problems.
  • Good general health.
  • Orthodontic fixed labial appliances on the maxillary and mandibular arch, brackets at least on 20 teeth for more than 4 months before enrollment and estimated duration of the treatment more than 1 month, bands on the first molars, extraction cases patients could be enrolled at least two months after the last extraction.
  • Total initial VSCs levels above the baseline level of 150ppb.

You may not qualify if:

  • Patients will be excluded for any of the following reasons:
  • Active caries
  • Periodontitis
  • Dental fluorosis / dysplasia of the teeth
  • Syndromes, mental disabilities and craniofacial deformities
  • Smoking or use of other tobacco products
  • Allergy to mastic
  • Antibiotics during the last 2 months
  • Chlorhexidine in the previous 3 weeks
  • Participation in other trials

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National and Kapodistrian University of Athens, School of Dentistry, Departments of Orthodontics

Athens, Attica, 11527, Greece

Location

Related Publications (1)

  • Tsironi K, Mylonopoulou IM, Pandis N, Vassilopoulos S, Sifakakis I, Papaioannou W. The effect of mastic mouthwash on halitosis and oral hygiene in orthodontic patients: a randomized clinical trial. Eur J Orthod. 2023 Nov 30;45(6):781-787. doi: 10.1093/ejo/cjad036.

MeSH Terms

Conditions

Halitosis

Condition Hierarchy (Ancestors)

Signs and Symptoms, DigestiveSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Iosif Sifakakis, Assistant Professor

    University of Athens

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
All patients will be allocated at a 1:1 ratio between group A (mastic group) and group B (placebo group), for each sex separately using stratified randomization. Two random sequences of 15 letters (A or B) will be obtained from www.random.org (List Randomizer service), one for males and one for females. Those letters were written on paper and then sealed in opaque envelopes, sequentially numbered from M1 to M15 for males and from F1 to F15 for females respectively. All envelopes were sealed, numbered and stored in a drawer by a person not involved in the study. Every patient enrolled in the study will receive an envelope in a numerical order and their name was written on the envelope. Informed consent will be obtained from parents / legal guardians and written consent upon information and prior to the randomization or application of any procedure obtained from the patients.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: This trial is designed as a prospective, randomized, placebo-controlled, double (investigator and patient) blinded, with two parallel groups and an equal allocation ratio in all groups. In this study, the intervention consists of delivery of mastic mouthwash or placebo lozenges.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Iosif Sifakakis, assistant professor, National and Kapodistrian University of Athens

Study Record Dates

First Submitted

December 2, 2022

First Posted

December 12, 2022

Study Start

December 1, 2022

Primary Completion

March 1, 2023

Study Completion

March 1, 2023

Last Updated

January 14, 2025

Record last verified: 2025-01

Locations