Posterior Implant-Supported Modified Monolithic Zirconia and Metal-Ceramic Single Crowns: 5 Years Study

Summary

The outcome of implant therapy has been presented in the majority of clinical studies by focusing only on implant survival without providing detailed information on the reconstructions . However, for decision making, it is important to know the survival rates and the incidence of biological and technical complications not only for the implants but also for the reconstructions. Thus, the selection of restoration materials should be based on proper optical characteristics in addition to biocompatibility and sufficient strength of materials.

Monolithic zirconia has been used in posterior region, especially for single crowns, in order to eliminate the veneer cracking, But Since monolithic zirconia are relatively new, few randomized, controlled clinical studies have evaluated their success. There is only one study identified regarding the performance of monolithic ceramic restorations bonded to Ti inserts, investigating the clinical outcome of using monolithic or modified monolithic zirconia implant-supported single crowns and comparing outcomes and complications of metal-ceramic and monolithic or modified monolithic zirconia implant supported single crowns.

More clinical studies to evaluate the performance of CAD/CAM monolithic implant-supported restorations bonded to Ti inserts and bases and compare their survival, success and complication rates with other restorative options \[with a mean follow-up period of at least 5 years are required for a meaningful interpretation of the survival and complication rate .

So this study aims to investigate outcomes and complications of implant supported modified monolithic zirconia and metal-ceramic single crowns in the posterior region of the mouth.

The null hypothesis is that there is no difference between modified monolithic zirconia and metal-ceramic posterior implant-supported SCs in prosthetic complication rates.

Conditions

• Posterior Occlusion
• Fracture

Interventions

DEVICE

modified monolithic zirconia crowns

outcomes and complications of implant restoration

DEVICE

Metal Ceramic crowns

outcomes and complications of implant restoration

Sponsors & Collaborators

• ITI International Team for Implantology, Switzerland

  collaborator OTHER

• Jordan University of Science and Technology

  lead OTHER

Principal Investigators

• Rola Alhabshneh, Prof · JUST

Study Design

Allocation

RANDOMIZED

Purpose

DIAGNOSTIC

Masking

TRIPLE

Model

CROSSOVER

Eligibility

Min Age

21 Years

Max Age

55 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2020-04-02

Primary Completion

2024-05-02

Completion

2024-12-05

Countries

• Jordan

Study Locations