What is this study trying to find out about scan time and prosthetic complications?

This study is evaluating how two digital methods, intra-oral scanning and intra-oral photogrammetry, affect the time it takes to scan and the complications of full-arch implant prostheses. The research aims to help understand which method may better support patients receiving these dental prostheses. It is led by Cairo University.

Who may be eligible for this scan time and prosthetic complications clinical trial?

Adults of any gender who need a full arch implant-supported prosthesis with 4 to 6 implants per arch may be eligible. Participants must have enough space between jaws and good oral hygiene, and controlled systemic diseases like diabetes or hypertension are allowed. Please review eligibility criteria for more details.

Is there any cost to participate in this scan time and prosthetic complications clinical trial?

Study-related care, including the study devices and all trial visits, is provided at no cost. However, personal travel or other expenses are not guaranteed to be covered and may vary. Participants should plan accordingly.

Actively Recruiting

Phase Not Applicable

All Genders

ID07446790

Scan Time and Prosthetic Complications of Intraoral Scanning Versus Intraoral Photogrammetry for Full-Arch Titanium Framework With Zirconia Overlay Implant Screw-Retained Prostheses A Randomized Clinical Trial

Led by Cairo University · Updated on 2026-03-03

Participants Needed

Research Sites

N/A

Total Duration

AI-Summary

What this Trial Is About

Researchers are evaluating the impact of intra-oral scanning and intra-oral photogrammetry on the time needed to scan and complications related to prosthetic devices in patients receiving full-arch implant prostheses. The study focuses on patients who get a full-arch titanium framework with zirconium overlay implant screw-retained prostheses, aiming to compare these two digital impression methods in a randomized clinical trial sponsored by Cairo University. Participants will receive a full arch implant prosthesis using either an intraoral scanner IOS or intraoral photogrammetry IOP. The IOS uses a device to capture digital impressions with 3D printed generic scan bodies, while IOP employs a specialized photogrammetry system to digitally record implant positions and surrounding soft tissue. Scan time will be measured during the initial clinical visit, and prosthetic complications such as screw loosening, framework fractures, or zirconia chipping will be tracked at 3 and 6 months after prosthesis delivery. During the study, researchers will record the scanning duration at the first visit and monitor any prosthetic issues during follow-up visits at 3 and 6 months. Complications will be managed as they occur. Participants need to have specific dental and health conditions, and data on oral hygiene and cooperation will be collected. The overall study period includes initial scanning and follow-up assessments over six months post-prosthesis delivery.

CONDITIONS

Brief Title

Scan Time and Prosthetic Complications of Intraoral Scanning Versus Intraoral Photogrammetry for Full-Arch Titanium Framework With Zirconia Overlay Implant Screw-Retained Prostheses

Who Can Participate

All Genders

Eligibility Criteria

You may qualify if you...

Patients requiring maxillary and/or mandibular full arch screw-retained implant-supported prosthesis.
Number of implants placed per arch ranging from 4-6 implants per arch.
Completely edentulous patients with sufficient inter-arch space to receive fixed prosthesis (Crown height space 9-15 mm per arch).
Adequate zone of keratinized mucosa (> 2mm width).
Both genders.
Acceptable oral hygiene.
Cooperative patients.
Controlled systemic diseases (Diabetes, hypertension).

You will not qualify if you...

Completely edentulous patients with insufficient inter-arch space to receive fixed prosthesis (Crown height space lesser than 9mm per arch).
Completely edentulous patients with in-adequate zone of keratinized mucosa (< 2mm).
Un cooperative patients.
Poor oral hygiene.
Uncontrolled systemic diseases (Diabetes, hypertension).

Research Team

Nour El Hoda M El Tarabishi

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