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Clinical Trials in Egypt / NCT07522671
Recruiting Not applicable

Clinical Performance of 3D-Printed Resin and Zirconia Implant Restorations

NCT07522671 · tracked via the Priya Life Science Egypt tracker
Sponsor
Menoufia University
Phase
Not applicable
Started
2026-04-01
Last updated
2026-04-13

Condition(s) studied

Prosthesis User

Investigational drug(s) / intervention(s)

3D-Printed Resin Restoration (CROWNTEC)

3D-Printed Resin Restoration (CROWNTEC): Implant-supported single crowns or short-span fixed partial dentures fabricated using 3D-printed permanent resin (CROWNTEC). Restorations are produced using a standardized digital workflow, including intraoral scanning, CAD design, 3D printing at 50 µm layer thickness, post-processing (isopropyl alcohol cleaning, post-curing), finishing, and polishing. Restorations are delivered as screw- or cement-retained prostheses. In addition, Other participants will receive implant-supported single crowns or short-span fixed partial dentures fabricated from monolithic zirconia using CAD-CAM milling. Restorations undergo sintering, finishing, and polishing, and are delive

Study summary

This randomized controlled clinical trial evaluates the clinical performance of 3D-printed resin restorations compared with milled monolithic zirconia in implant-supported single crowns and short-span fixed partial dentures (FPDs). A total of patients requiring one or two implant-supported restorations in the mandibular anterior region were randomly allocated to receive either 3D-printed permanent resin restorations (CROWNTEC) or conventionally milled zirconia prostheses.

All restorations were fabricated using a standardized digital workflow and assessed over a 12-month follow-up period. The primary outcome was restoration survival rate, while secondary outcomes included technical complications, peri-implant biological parameters, marginal bone level changes, and patient-reported satisfaction.

This study aims to provide clinical evidence regarding the viability of 3D-printed definitive resin materials as an alternative to zirconia in implant prosthodontics.

Eligibility

Sex
ALL
Min age
18 Years
Max age
60 Years
Healthy volunteers
No
Inclusion Criteria: * Participants must meet all of the following: * Age ≥18 years. * Have one or two osseointegrated dental implants requiring prosthetic restoration. * Demonstrate stable peri-implant tissues with no signs of inflammation or implant mobility. * Maintain good oral hygiene and controlled periodontal status. * Require either: * A single implant-supported crown, or * A short-span (maximum 3-unit) implant-supported fixed partial denture (FPD) supported by two implants in the mandibular anterior region. Exclusion Criteria: * Participants are excluded if they have any of the following: * Severe parafunctional habits (e.g., bruxism). * Uncontrolled systemic diseases affecting bone metabolism or healing. * Peri-implantitis or compromised implant stability. * Requirement for cantilever prostheses or long-span restorations, or FPDs in areas other than the mandibular anterior region.

Primary outcome measure(s)

  • Restoration Survival Rate — 12 months
    The proportion of implant-supported single crowns and short-span fixed partial dentures that remain functional without fracture, loss, or need for replacement over the follow-up period. Survival is defined as the restoration remaining in situ, fully functional, and free of catastrophic failure requiring intervention.

Trial sites (1)

FacilityCityRegionStatus
Mohammed Elsawy Shibīn al Kawm Egypt Recruiting

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Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT07522671 on ClinicalTrials.gov ↗ ← All trials in Egypt