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Clinical Evaluation of Indirect Tooth-Colored Onlays With Cervical Margin Relocation

NCT07157410 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 18

Last updated 2025-09-05

No results posted yet for this study

Summary

This study will evaluate the performance of three different tooth-colored onlay materials in adult patients' posterior teeth. First, investigators will use a bulk-fill composite resin to raise the cavity margin above the gum line and below the contact point. Then each patient will receive three onlays made from different materials. Investigators will follow patients at 2 weeks, 6 months, 18 months, and 24 months to assess how well the onlays fit, function, and whether restorations cause sensitivity or new decay. The results will help dentists choose the most durable onlay restorations for deep-margin elevation cases.

Conditions

  • Indirect Tooth-colored Onlay Restorations in Posterior Teeth
  • Clinical Performance of Cervical-margin-relocated Onlay Restorations

Interventions

OTHER

Machinable lithium-disilicate ceramic onlay (IPS e.max CAD)

Single indirect onlay restoration milled from an IPS e.max CAD block and crystallized according to the manufacturer's Instructions for Use, then adhesively luted on a randomized molar under.

OTHER

Pressed lithium-disilicate ceramic onlay (IPS e.max Press)

Single indirect onlay restoration heat-pressed from an IPS e.max Press ingot and then adhesively luted on a randomized molar under rubber-dam isolation.

OTHER

Machinable composite onlay (BRILLIANT Crios)

Single indirect onlay restoration milled from a BRILLIANT Crios block and then adhesively luted on a randomized molar under rubber-dam isolation.

Sponsors & Collaborators

  • Mansoura University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
20 Years
Max Age
50 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-04-14
Primary Completion
2027-04-30
Completion
2027-04-30

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07157410 on ClinicalTrials.gov