Assessment of the Cytotoxic and Genotoxic Effect of Toothpastes With Different Forms of Fluoride on the Buccal Mucosa

NCT ID: NCT05596149

Last Updated: 2022-10-27

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-11-01

Study Completion Date

2023-11-01

Brief Summary

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The remarkable therapeutic anticaries effect of fluoride is well recognized, but in recent years, toxic effects on the oral mucosa have been discussed. So far, many in vivo studies examining the genotoxic and cytotoxic effect of fluoride in human cells (lymphocytes, bone marrow, germ cells) have been carried out, but there are no studies examining the effect of fluoride on cells of the buccal mucosa. In vitro studies have shown that sodium fluoride can be toxic to fibroblasts of the oral mucosa by inhibiting protein synthesis, suppressing mitochondrial function and consequently reducing the amount of intracellular ATP.

The study would include 80 participants, aged between 18 and 75. All subjects would use the same toothpaste without fluoride for the first month, and then they would be randomly divided into four groups, where three groups would receive a toothpaste with fluoride with one of the active substances (sodium fluoride, sodium monofluorophosphate, amine fluoride) for the next 60 days, while the control group would continue to use the toothpaste without fluorine. Swabs of the buccal mucosa would be taken at 0 (before the start of use) and 30, 45 and 60 days after the start of using the tested toothpastes.

The aim of this research would be to examine the cytotoxic and genotoxic effect of toothpastes containing fluoride with different active substances and to compare their effect. As a measure of genotoxicity and cytotoxicity in cells, the micronucleus test will be used.

Detailed Description

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Conditions

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DNA Damage

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Toothpaste without fluoride

A group of participants that will be using toothpaste without fluoride.

Group Type ACTIVE_COMPARATOR

Toothpaste without fluoride

Intervention Type OTHER

A sample of cells from the area of the buccal mucosa of each of the subjects will be taken with a cytological brush just before the start of using the toothpaste without fluoride and 30, 45 and 60 days after the start of use. Cell suspension is applied on a microscopy slide. Slides will be stained with Fast Green FCF dye and analyzed with an epifluorescence microscope. After using each tested toothpaste, the respondents will be given a specially designed questionnaire with questions related to their opinion about the used oral hygiene product.

Toothpaste with sodium fluoride

A group of participants that will be using toothpaste with sodium fluoride.

Group Type EXPERIMENTAL

Toothpaste with sodium fluoride

Intervention Type OTHER

A sample of cells from the area of the buccal mucosa of each of the subjects will be taken with a cytological brush just before the start of using the toothpaste with sodium fluoride and 30, 45 and 60 days after the start of use. Cell suspension is applied on a microscopy slide. Slides will be stained with Fast Green FCF dye and analyzed with an epifluorescence microscope. After using each tested toothpaste, the respondents will be given a specially designed questionnaire with questions related to their opinion about the used oral hygiene product.

Toothpaste with sodium monofluorophosphate

A group of participants that will be using toothpaste with sodium monofluorophosphate.

Group Type EXPERIMENTAL

Toothpaste with sodium monofluorophosphate

Intervention Type OTHER

A sample of cells from the area of the buccal mucosa of each of the subjects will be taken with a cytological brush just before the start of using the toothpaste with sodium monofluorophosphate and 30, 45 and 60 days after the start of use. Cell suspension is applied on a microscopy slide. Slides will be stained with Fast Green FCF dye and analyzed with an epifluorescence microscope. After using each tested toothpaste, the respondents will be given a specially designed questionnaire with questions related to their opinion about the used oral hygiene product.

Toothpaste with amine fluoride

A group of participants that will be using toothpaste with amine fluoride.

Group Type EXPERIMENTAL

Toothpaste with amine fluoride

Intervention Type OTHER

A sample of cells from the area of the buccal mucosa of each of the subjects will be taken with a cytological brush just before the start of using the toothpaste with amine fluoride and 30, 45 and 60 days after the start of use. Cell suspension is applied on a microscopy slide. Slides will be stained with Fast Green FCF dye and analyzed with an epifluorescence microscope. After using each tested toothpaste, the respondents will be given a specially designed questionnaire with questions related to their opinion about the used oral hygiene product.

Interventions

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Toothpaste without fluoride

A sample of cells from the area of the buccal mucosa of each of the subjects will be taken with a cytological brush just before the start of using the toothpaste without fluoride and 30, 45 and 60 days after the start of use. Cell suspension is applied on a microscopy slide. Slides will be stained with Fast Green FCF dye and analyzed with an epifluorescence microscope. After using each tested toothpaste, the respondents will be given a specially designed questionnaire with questions related to their opinion about the used oral hygiene product.

Intervention Type OTHER

Toothpaste with sodium fluoride

A sample of cells from the area of the buccal mucosa of each of the subjects will be taken with a cytological brush just before the start of using the toothpaste with sodium fluoride and 30, 45 and 60 days after the start of use. Cell suspension is applied on a microscopy slide. Slides will be stained with Fast Green FCF dye and analyzed with an epifluorescence microscope. After using each tested toothpaste, the respondents will be given a specially designed questionnaire with questions related to their opinion about the used oral hygiene product.

Intervention Type OTHER

Toothpaste with sodium monofluorophosphate

A sample of cells from the area of the buccal mucosa of each of the subjects will be taken with a cytological brush just before the start of using the toothpaste with sodium monofluorophosphate and 30, 45 and 60 days after the start of use. Cell suspension is applied on a microscopy slide. Slides will be stained with Fast Green FCF dye and analyzed with an epifluorescence microscope. After using each tested toothpaste, the respondents will be given a specially designed questionnaire with questions related to their opinion about the used oral hygiene product.

Intervention Type OTHER

Toothpaste with amine fluoride

A sample of cells from the area of the buccal mucosa of each of the subjects will be taken with a cytological brush just before the start of using the toothpaste with amine fluoride and 30, 45 and 60 days after the start of use. Cell suspension is applied on a microscopy slide. Slides will be stained with Fast Green FCF dye and analyzed with an epifluorescence microscope. After using each tested toothpaste, the respondents will be given a specially designed questionnaire with questions related to their opinion about the used oral hygiene product.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* age of 18 and older
* good oral and general health
* non smokers

Exclusion Criteria

* subjects suffering from infectious diseases or chronic inflammatory diseases
* use of antibiotics, corticosteroids and anti-inflammatory drugs in the last six months
* damage to the mucous membrane of the oral cavity
* subjects who have fixed-prosthetic works and orthodontic braces
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Split, School of Medicine

OTHER

Sponsor Role collaborator

University of Zagreb

OTHER

Sponsor Role lead

Responsible Party

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Jasen Vladislavić

Pulmonology Resident, Medical Doctor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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School of Dental Medicine, University of Zagreb

Zagreb, , Croatia

Site Status RECRUITING

Countries

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Croatia

Facility Contacts

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Jasen Vladislavić, MD

Role: primary

+385958483757

Other Identifiers

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2181-198-03-04-22-0003

Identifier Type: -

Identifier Source: org_study_id

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