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Evaluation of Mandibular Posterior Zirconia Crowns With Different Ti-Base Surface Treatments.

NCT07456995 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 27

Last updated 2026-03-09

No results posted yet for this study

Summary

This clinical trial evaluates how different surface treatments on a metal base (Ti-Base) affect the success of dental crowns on implants. Patients receiving a zirconia crown for a missing lower back tooth are divided into three groups: one group receives no special treatment on the metal base, one group receives a silica coating, and the third receives both a silica coating and a chemical primer. The study monitors these crowns for one year to see which treatment best prevents the crown from coming loose or breaking, while also checking the health of the surrounding gums.

Conditions

  • Jaw, Edentulous, Partially
  • Tooth Loss
  • Molar Teeth
  • Dental Implant

Interventions

DEVICE

Tribochemical silica coating.

Surface treatment of titanium base implant abutment using 30 um SiO2 - Al2O3 particles at 2.0 bar pressure.

DEVICE

Tribochemical silica coating and Z-Prime Plus.

Surface treatment of titanium base implant abutment using 30 um SiO2 - Al2O3 particles at 2.0 bar pressure, followed by the application of Z-Prime Plus primer.

Sponsors & Collaborators

  • October University for Modern Sciences and Arts

    lead OTHER

Principal Investigators

  • Dina Elawady, PhD / Asst. Prof. · MSA University, Faculty of Dentistry

  • Hesham Amr, Ph.D · MSA University, Faculty of Dentistry

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
55 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-01-08
Primary Completion
2026-01-12
Completion
2026-02-12

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 NCT07456995 on ClinicalTrials.gov