Hydroxyapatite Toothpastes and Enamel Remineralization:

NCT ID: NCT07069218

Last Updated: 2025-08-22

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

RECRUITING

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-07-25

Study Completion Date

2026-02-15

Brief Summary

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This randomized controlled clinical trial aims to evaluate the efficacy of two commercially available toothpastes containing hydroxyapatite in the remineralization of early enamel lesions. The study compares Biorepair® Total Protection Plus, which contains biomimetic microRepair particles, with Bioniq® Repair, a conventional hydroxyapatite-based toothpaste.

Forty participants will be randomly assigned to either the trial group (Biorepair®) or the control group (Bioniq®), and both groups will receive quarterly professional dental cleanings and use the assigned toothpaste twice daily for 6 months.

The primary outcome is the change in enamel demineralization, assessed by DIAGNOdent Pen scores, in permanent molar fissures and upper central incisors. Secondary outcomes include enamel integrity assessed by DIAGNOcam imaging and ICDAS scores, as well as changes in dental sensitivity (Schiff Air Index), erosive wear (BEWE Index), plaque accumulation (Plaque Index), gingival inflammation (Bleeding Index), and extrinsic stains (Modified Lobene Stain Index). Patient satisfaction will also be evaluated at the end of the study using a self-administered questionnaire.

This study will help determine whether biomimetic hydroxyapatite offers superior benefits in maintaining enamel health compared to conventional formulations, supporting evidence-based preventive strategies in dental care.

Detailed Description

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Conditions

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Enamel Hypomineralization Tooth Erosion

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Biorepair Group

Participants receive professional oral hygiene sessions every 3 months and use Biorepair® Total Protection Plus toothpaste (biomimetic microRepair-based) twice daily for 6 months.

Group Type EXPERIMENTAL

Biorepair® Total Protection Plus Toothpaste

Intervention Type DRUG

Participants will use Biorepair® Total Protection Plus toothpaste twice daily for 6 months. The toothpaste contains biomimetic microRepair® particles based on zinc-substituted hydroxyapatite, intended to promote enamel remineralization, reduce sensitivity, and protect against erosion and plaque accumulation. Professional dental cleanings will also be performed every 3 months.

Bioniq Group

Participants receive professional oral hygiene sessions every 3 months and use Bioniq® Repair toothpaste (conventional hydroxyapatite-based) twice daily for 6 months.

Group Type ACTIVE_COMPARATOR

Bioniq® Toothpaste

Intervention Type DRUG

Participants will use Bioniq® Repair toothpaste twice daily for 6 months. The toothpaste contains 20% conventional hydroxyapatite and is designed to restore enamel, reduce dentin hypersensitivity, and protect against erosion. Professional dental cleanings will also be performed every 3 months.

Interventions

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Biorepair® Total Protection Plus Toothpaste

Participants will use Biorepair® Total Protection Plus toothpaste twice daily for 6 months. The toothpaste contains biomimetic microRepair® particles based on zinc-substituted hydroxyapatite, intended to promote enamel remineralization, reduce sensitivity, and protect against erosion and plaque accumulation. Professional dental cleanings will also be performed every 3 months.

Intervention Type DRUG

Bioniq® Toothpaste

Participants will use Bioniq® Repair toothpaste twice daily for 6 months. The toothpaste contains 20% conventional hydroxyapatite and is designed to restore enamel, reduce dentin hypersensitivity, and protect against erosion. Professional dental cleanings will also be performed every 3 months.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Subjects aged between 6 and 18 years
* Ability to understand and follow instructions in Italian or English
* Signed written informed consent provided by the parent/legal guardian and assent from the minor
* Good cooperation and adherence to clinical instructions
* Fully erupted permanent first molars and upper central incisors in good general condition
* DIAGNOdent Pen baseline values in the C1 (0-12) or C2 (13-24) range

Exclusion Criteria

* DIAGNOdent Pen values greater than 25
* Ongoing systemic antibiotic therapy
* Presence of sealants or composite restorations on first permanent molars or upper central incisors
* Severe enamel alterations such as molar-incisor hypomineralization (MIH), fluorosis, or extensive white/brown spot lesions
* Poor motivation or limited compliance with study procedures
Minimum Eligible Age

6 Years

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Pavia

OTHER

Sponsor Role lead

Responsible Party

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Andrea Scribante

Associate Professor, Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Andrea Scribante, Associate Professor

Role: PRINCIPAL_INVESTIGATOR

University of Pavia

Locations

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Unit of Orthodontics and Pediatric Dentistry - Section of Dentistry - Department of Clinical, Surgical, Diagnostic and Pediatrics - University of Pavia

Pavia, Lombardy, Italy

Site Status RECRUITING

Countries

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Italy

Central Contacts

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Andrea Scribante, Associate Professor

Role: CONTACT

+39 0382516223

Facility Contacts

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Andrea Scribante, Associate Professor

Role: primary

+39 0382516223

Other Identifiers

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2025-REMINEN

Identifier Type: -

Identifier Source: org_study_id

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