Direct Composite Versus Indirect Hybrid Resin Restorations in Hypomineralized First Permanent Molars

July 17, 2026 updated by: Maha Elhabbak, Cairo University

Clinical Evaluation of Direct Composite Versus Indirect Hybrid Resin Restorations in Hypomineralized First Permanent Molars: A Randomized Clinical Trial

The aim of this clinical trial is to evaluate the clinical success of 3D printed Indirect hybrid resin restorations in the hypomineralized first permanent molars.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

40

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Participants aged from 7 years to 11 years
  2. MIH-TNI 2 or 4
  3. No past dental treatment for the hypomineralized first permanent mandibular molars.
  4. Caries lesions that include the occlusal surface.

Exclusion Criteria:

  1. The presence of systemic disease, physical or mental disability.
  2. Any potential confounding enamel defects i.e., amelogenesis imperfecta.
  3. Uncooperative children.
  4. A history of allergic reactions to local anesthetics or some components of restorative materials
  5. History of spontaneous pain.
  6. Presence of clinical or radiographic signs of pulp necrosis (Fistula/abscess, internal or external root resorption, mobility of the tooth, and swelling).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 3d printed restoration
Other: 3d printed restoration
3d hybrid resin restoration
Active Comparator: direct composite restoration
Other: composite
direct resin composite

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
evaluation of self-reported pain
Time Frame: 12 months
Self-reported pain was assessed considering each MIH affected FPM included in the study, using the faces pain scale-revised (FPS-R) before and after the restoration. This scale is made up of six faces, each representing an increase in the degree of pain fromleft to right. The scores of the faces are 0, 2, 4, 6, 8, and 10
12 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
percentage of clinical survival of restoration
Time Frame: 12 months
Restorations were clinically evaluated according to the restoration quality analysis criteria proposed by the United States Public Health Services USPHS-Modified for periods of 6 and 12 months
12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Cairo University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

October 1, 2026

Primary Completion (Estimated)

December 1, 2027

Study Completion (Estimated)

December 1, 2027

Study Registration Dates

First Submitted

July 8, 2026

First Submitted That Met QC Criteria

July 17, 2026

First Posted (Actual)

July 21, 2026

Study Record Updates

Last Update Posted (Actual)

July 21, 2026

Last Update Submitted That Met QC Criteria

July 17, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PhD-2026

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Molar-Incisor Hypomineralization (MIH)

Clinical Trials on 3d printed restoration

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Bahrain

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe