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Clinical Evaluation of Indirect Tooth-Colored Onlays With Cervical Margin Relocation
Sponsor: Mansoura University
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.
Official title: Two-year Clinical Evaluation of Different Indirect Tooth-colored Onlay Restorations Placed in Posterior Teeth With Cervical Margin Relocation and Laboratory Investigation of Marginal Adaptation
Key Details
Gender
All
Age Range
20 Years - 50 Years
Study Type
INTERVENTIONAL
Enrollment
18
Start Date
2025-04-14
Completion Date
2027-04
Last Updated
2025-09-05
Healthy Volunteers
Yes
Conditions
Interventions
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.
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.
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.
Locations (1)
Faculty of Dentistry, Mansoura University
Al Mansurah, Dakahlia Governorate, Egypt