Comparative Evaluation of Hydrophilic and Hydrophobic Sealants in Partially Erupted First Molars

NCT ID: NCT07052526

Last Updated: 2025-07-09

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

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-07-01

Study Completion Date

2027-04-01

Brief Summary

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This randomized controlled clinical trial aims to evaluate and compare the retention, caries prevention, microleakage, and fluoride release of three types of pit and fissure sealants-hydrophilic, nanofilled hydrophobic, and conventional hydrophobic-applied to partially erupted first permanent molars in children aged 5 to 7 years. The study uses a split-mouth design and includes both clinical and laboratory evaluations over an 18-month period. Outcomes will assess sealant effectiveness with and without the use of a bonding agent.

Detailed Description

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This is a randomized controlled clinical trial designed to evaluate and compare the effectiveness of three types of pit and fissure sealants-hydrophilic (Embrace WetBond), nanofilled hydrophobic (DENU Seal), and conventional hydrophobic (Helioseal F)-when applied to partially erupted first permanent molars in children aged 5 to 7 years. The study aims to assess the sealants' clinical retention, their ability to prevent dental caries, microleakage, sealant penetration depth, and fluoride release.

A total of 150 children will be randomly assigned to three equal groups of 50 participants each. A split-mouth design will be used: in each group, sealants will be applied with and without bonding agents on opposite sides of the upper or lower arch, allowing intra-subject comparisons. Clinical evaluations will be conducted at 3, 6, 12, and 18 months to assess sealant retention and caries incidence using the modified Color, Coverage, Caries (CCC) Sealant Evaluation System.

In addition to the clinical phase, a laboratory phase will be conducted using extracted human premolars. This phase will evaluate microleakage and sealant penetration under a stereomicroscope following dye penetration techniques. Fluoride release will be measured at specified time intervals (1, 7, 14, 21, and 28 days) using an ion-selective electrode in artificial saliva conditions maintained at 37°C.

The primary outcomes include sealant retention and caries incidence. Secondary outcomes focus on the degree of microleakage, sealant penetration, and fluoride release. The trial will help determine whether moisture-tolerant sealants offer superior clinical and preventive benefits over traditional hydrophobic materials, particularly in situations where ideal isolation is difficult, such as with partially erupted teeth in young children.

The study will be conducted at the Pediatric Dentistry Clinic, Faculty of Dentistry, Mansoura University, and is expected to generate evidence that could improve clinical decision-making in preventive pediatric dentistry.

Conditions

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Dental Caries

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

A total of 150 children aged 5-7 will be randomly assigned to three equal groups of 50 participants each
Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Participants

Study Groups

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Helioseal Fplus

Participants in this arm will receive the Helioseal F Plus resin-based sealant, applied to occlusal surfaces of permanent molars. The sealant will be applied according to the manufacturer's

Group Type EXPERIMENTAL

Prevention

Intervention Type OTHER

Conventional Hydrophobic Sealant (Helioseal F - Control) will be used as a positive control; applied to partially erupted molars with and without bonding in a split-mouth design.

1 - Hydrophilic Sealant (Embrace WetBond)

Participants will receive Embrace WetBond sealant, a moisture-tolerant resin sealant applied to slightly moist occlusal surfaces. The sealant is light-cured for 20 seconds

Group Type EXPERIMENTAL

Prevention of caries

Intervention Type OTHER

Embrace WetBond sealant will be applied to partially erupted first permanent molars using a split-mouth design with and without bonding agent.

Denu seal

Participants in this arm will receive Denuseal, a fluoride-releasing sealant, applied to occlusal surfaces of permanent molars under dry conditions. The sealant will be light-cured for 20 seconds.

Group Type EXPERIMENTAL

Prevention therapy

Intervention Type OTHER

DENU Seal applied using a split-mouth design to evaluate bonding and non-bonding application outcomes from retention and caries prevention

Interventions

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Prevention

Conventional Hydrophobic Sealant (Helioseal F - Control) will be used as a positive control; applied to partially erupted molars with and without bonding in a split-mouth design.

Intervention Type OTHER

Prevention of caries

Embrace WetBond sealant will be applied to partially erupted first permanent molars using a split-mouth design with and without bonding agent.

Intervention Type OTHER

Prevention therapy

DENU Seal applied using a split-mouth design to evaluate bonding and non-bonding application outcomes from retention and caries prevention

Intervention Type OTHER

Other Intervention Names

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Helioseal-F plus Hydrophilic Embrace-Wetbond Denuseal

Eligibility Criteria

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Inclusion Criteria

* Cooperative children (Frankl Scale 3)
* good oral hygiene (OHI-S Index),
* 2 partially erupted 1st molars

Exclusion Criteria

* Cavitated caries
* fluorosis
* hypoplasia
* restored teeth
Minimum Eligible Age

5 Years

Maximum Eligible Age

7 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Mansoura University

OTHER

Sponsor Role lead

Responsible Party

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Heba Mohamed

Assisstant lecturer

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Dr rabaa MAHMOUD ABOU Bakr, Professor

Role: PRINCIPAL_INVESTIGATOR

Mansoura University - Pediatric Dentistry Clinic

Locations

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Facility of Dentistry،Mansoura University

Al Mansurah, , Egypt

Site Status

Countries

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Egypt

Central Contacts

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Dr. Heba Mohamed DEGHID, Master

Role: CONTACT

2001016684174

Related Links

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https://pubmed.ncbi.nlm.nih.gov/39087225/

This randomized controlled trial compared hydrophilic (UltraSeal XT Hydro) and hydrophobic (Helioseal-F) resin-based sealants in uncooperative childre in aged 6-9 years. Using a split-mouth design, sealants were applied to 49 pairs of molars and assessed

https://www.jstage.jst.go.jp/article/tdcpublication/45/3/45_3_173/_pdf

In-vitro studies on pit and fissure sealants often involve measuring fluoride ion release to assess their potential anticariogenic effects. Fluoride release is typically measured using a fluoride ion-selective electrode and an ion analyzer. Different typ

Other Identifiers

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MU-DPH-Heba2025

Identifier Type: -

Identifier Source: org_study_id

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