NCT03394729

Brief Summary

The aim of the present study was to evaluate the effect of a xylitol containing propolis tablet on the salivary pH, total microorganisms count and soluble and insoluble extracellular polysaccharide concentration of the dental biofilm of adolescents in a randomized controlled clinical trial. In addition, evaluate the acceptability of the individuals regarding the characteristics of the tablets (appearance, taste, aroma and texture) through a questionnaire. To that end, healthy adolescents between 10 and 19 years old, without active carious lesions, who seek care at the Pediatric Dentistry Clinic of the Universidade Federal do Rio de Janeiro (UFRJ) will be randomly assigned to the two groups of the study: control group (propolis- consumers of tablets with propolis), respecting an interval of 30 days of rest between the consumption of the tablets. The study will be cross-checked and the principal investigator will be blind. The tablets will be given to the participants on an exact number of days of use and they will be instructed to consume two tablets per day for 7 uninterrupted days. After 30 days of interval, they will consume the other type of tablet with the same recommendations of the first one. The total non-stimulated saliva collection will be performed at the beginning of the study (before the consumption of the tablets) and 7 days after the intervention of each type of tablet, as well as the collection of the dental biofilm. Saliva and biofilm samples from all individuals will be identified and later analyzed in the laboratory, on the same day of collection, to measure the salivary pH, with the aid of a phmeter, and evaluation of the growth of total microorganisms (CFU / mg biofilm ), respectively. From the biofilm collected and stored in saline, concentrations of soluble and insoluble extracellular polysaccharides will also be measured by means of a spectrophotometer. Statistical tests will be used to compare the groups, with a significance level of 5%. As results, the propolis-containing tablet is expected to increase the salivary pH and decrease the number of total microorganisms in the dental biofilm.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Sep 2017

Typical duration for phase_2

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

September 29, 2017

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

December 26, 2017

Completed
14 days until next milestone

First Posted

Study publicly available on registry

January 9, 2018

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 21, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 21, 2020

Completed
Last Updated

November 4, 2020

Status Verified

November 1, 2020

Enrollment Period

3.1 years

First QC Date

December 26, 2017

Last Update Submit

November 3, 2020

Conditions

Keywords

PropoleXylitolSaliva

Outcome Measures

Primary Outcomes (1)

  • Total microorganism count of adolescents biofilm

    Effect of xylitol tablets with and without propolis on the total microorganism count of adolescents biofilm using the scattering technique, considering the number of CFU/mg of biofilm.

    7 days

Secondary Outcomes (2)

  • Concentration of soluble and insoluble extracellular polysaccharides of the biofilm of adolescents

    7 days

  • Acceptability of tablets

    7 days

Study Arms (2)

Propolis tablet to limit dental biofilm

EXPERIMENTAL

Individuals will be instructed to consume the tablet with propolis and xilytol to control dental biofilm, twice a day (at 10am and 5pm) for 7 days, giving a 30 day interval between the test and the control tablet.

Drug: Propolis tablet to limit dental biofilm

Xilytol tablet to limit dental biofilm

ACTIVE COMPARATOR

Individuals will be instructed to consume the tablet with xilytol to control dental biofilm, twice a day (at 10am and 5pm) for 7 days, giving a 30 day interval between the test and the control tablet.

Drug: Xilytol tablet to limit dental biofilm

Interventions

The tablets will be offered in an exact number of days of use. Collection of total stimulated saliva and dental biofilm will be performed at the beginning of the study (before tablet consumption) and 7 days after the intervention. Saliva samples from each individual will be collected in separate containers as well as the biofilm samples, both at baseline and after 7 days

Also known as: Propolis+Xylitol tablet
Propolis tablet to limit dental biofilm

The tablets will be offered in an exact number of days of use. Collection of total stimulated saliva and dental biofilm will be performed at the beginning of the study (before tablet consumption) and 7 days after the intervention. Saliva samples from each individual will be collected in separate containers as well as the biofilm samples, both at baseline and after 7 days.

Also known as: Xylitol tablet
Xilytol tablet to limit dental biofilm

Eligibility Criteria

Age10 Years - 19 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Individuals aged 10-19 years;
  • Both genders;
  • Individuals without cavitary caries lesions;
  • Healthy individuals without any systemic diseases.

You may not qualify if:

  • Individuals intolerant to some component of the propolis-containing tablet;
  • Subjects undergoing antimicrobial treatment during the course of the study or for a period of 30 days prior to the study;
  • Individuals who used products containing xylitol up to 30 days before the start of study or during the course of the study;
  • Individuals who used products containing propolis up to 30 days before the start of the study or during the course of the study;
  • Individuals with orthodontic appliances;
  • Individuals who are using oral mouthwashes during the period of study;
  • Individuals with a history of intraoral surgery within the last 6 months;
  • Individuals who are making use of products rich in polyphenols: coffee, mate, acai, in the previous period (30 days) and during the research;
  • Individuals who consume alcohol.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Universidade Federal do Rio de Janeiro

Rio de Janeiro, Rio de Janeiro, 22245120, Brazil

Location

Related Publications (1)

  • Tulsani SG, Chikkanarasaiah N, Siddaiah SB, Krishnamurthy NH. The effect of Propolis and Xylitol chewing gums on salivary Streptococcus mutans count: a clinical trial. Indian J Dent Res. 2014 Nov-Dec;25(6):737-41. doi: 10.4103/0970-9290.152182.

    PMID: 25728105BACKGROUND

MeSH Terms

Conditions

Dental Plaque

Interventions

Xylitol

Condition Hierarchy (Ancestors)

Dental DepositsTooth DiseasesStomatognathic Diseases

Intervention Hierarchy (Ancestors)

Sugar AlcoholsAlcoholsOrganic ChemicalsCarbohydrates

Study Officials

  • Andréa F Gonçalves, Doctorate

    Universidade Federal do Rio de Janeiro

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
In the study, the principal investigator will be blind to the order of the tablets consumed by adolescents. The propolis tablets and control tablets will have a similar appearance, taste, texture and sizes, will be coded as "A" and "B" by an independent investigator and will be delivered to participants in an opaque and closed bottle. Individuals will be instructed to consume each type of tablet (propolis and propolis) twice a day (10 a.m. and 5 p.m.) for 7 days, giving a 30 day interval between test and control. Volunteers will be followed at the beginning and end of each intervention.
Purpose
PREVENTION
Intervention Model
CROSSOVER
Model Details: Clinical trial of prevention, cross, blind, randomized controlled with two arms in the study phase 2-3.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Post-graduate Student in Pediatric Dentistry, Faculty of Dentistry

Study Record Dates

First Submitted

December 26, 2017

First Posted

January 9, 2018

Study Start

September 29, 2017

Primary Completion

October 21, 2020

Study Completion

October 21, 2020

Last Updated

November 4, 2020

Record last verified: 2020-11

Data Sharing

IPD Sharing
Will not share

Locations