Clinical Evaluation of Prefabricated Versus 3D-Printed Composite Resin Veneers: in Vivo Study

July 2, 2026 updated by: Mohammed Abd El Ghany Mohammed, Tanta University
The purpose of this study is to clinically evaluate prefabricated versus 3D-printed composite resin veneers

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Detailed Description

Dental veneers are now a commonly used conservative treatment to improve the appearance and functionality of anterior teeth that have enamel flaws, diastemas, small abnormalities, and discoloration. Compared to ceramic veneers, composite resin veneers have a number of benefits, such as requiring less tooth preparation, being less expensive, being easier to repair, and requiring less chairside time. Recent developments in composite resin technology and adhesive dentistry have further enhanced their mechanical qualities, wear resistance, and aesthetic results, making them a desirable treatment option for patients and professionals alike. There is little clinical data that directly compares the long-term performance of prefabricated and 3D-printed composite veneers, despite their growing use. The majority of research that is currently available has either examined each technique separately or has concentrated on laboratory assessments of mechanical properties. As a result, there is still not enough data to compare their clinical behavior in intraoral settings.

Study Type

Interventional

Enrollment (Actual)

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 Locations

  • Egypt
    • Tanta
      • Tanta, Tanta, Egypt, 31527
        • Restorative Department, Faculty of Dentistry, Tanta University

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

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Good oral hygiene and satisfactory periodontal health
  • Patients requiring esthetic rehabilitation of anterior teeth
  • Presence of enough enamel for bonding

Exclusion Criteria:

  • Non-vital teeth or teeth requiring endodontic treatment
  • Severe malocclusion or parafunctional habits (e.g., bruxism or clenching)
  • Patients with severe intrinsic discoloration requiring alternative treatment

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: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Prefabricated Composite Resin Veneers
Participants received prefabricated composite resin veneer restorations for the treatment of anterior teeth requiring esthetic rehabilitation. Veneers were placed according to the manufacturer's instructions using a standardized adhesive protocol.
Other: Prefabricated Composite Resin Veneers
Prefabricated composite resin veneer restorations used for esthetic rehabilitation of anterior teeth. Restorations will be bonded following the manufacturer's recommended adhesive protocol.
Experimental: 3D-Printed Composite Resin Veneers
Participants received customized 3D-printed composite resin veneer restorations for the treatment of anterior teeth requiring esthetic rehabilitation. Veneers were fabricated using a digital workflow and cemented according to the manufacturer's instructions using a standardized adhesive protocol
Other: 3D-Printed Composite Resin Veneers
Customized 3D-printed composite resin veneer restorations fabricated using digital design and additive manufacturing technology and bonded according to the manufacturer's recommended adhesive protocol

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Color match and stability
Time Frame: 24 months
Clinical evaluation of color match and color stability will be performed according to the World Dental Federation (FDI) evaluation criteria by two calibrated evaluators at baseline and at 6, 9, 12, and 24 months. Veneer restorations will be assigned FDI scores ranging from 1 (clinically excellent) to 5 (clinically poor). Clinical success will be considered as scores of 1-3 and failure as scores of 4-5. Assessment will be carried out under standardized lighting conditions using visual examination and magnification. Statistical analysis will be performed to compare changes over time and between the two study groups.
24 months

Collaborators and Investigators

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

Sponsor

Tanta University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Actual)

April 25, 2025

Primary Completion (Estimated)

April 26, 2027

Study Completion (Estimated)

April 29, 2027

Study Registration Dates

First Submitted

July 2, 2026

First Submitted That Met QC Criteria

July 2, 2026

First Posted (Actual)

July 9, 2026

Study Record Updates

Last Update Posted (Actual)

July 9, 2026

Last Update Submitted That Met QC Criteria

July 2, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Composite Resin Veneers

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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.

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