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

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

This study aims to evaluate the effect of intra-oral scanning and intra-oral photogrammetry on scan time and prosthetic complications in patients receiving full-arch titanium framework with zirconium overlay implant screw-retained prostheses.

Participants will:

Receive a full arch implant prosthesis and scan time will be recorded. Prosthetic complications (e.g., screw loosening, framework fracture, zirconia chipping) will be recorded at 3 and 6-month follow-up period post-delivery and we will manage complications at the time of prosthetic complication occurrence.

Study Overview

• Status: Recruiting
• Conditions: Scan Time
• Intervention / Treatment: Device: Intraoral scanner (IOS); Device: Intraoral photogrammetry (IOP)

• Study Type: Interventional
• Enrollment (Estimated): 11
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Nour El Hoda M El Tarabishi; Phone Number: +2001001428905; Email: nourelhodaeltarabishi@dentistry.cu.edu.eg

Study Locations

• Egypt
  • Cairo, Egypt, 11511
    • Recruiting
    • Cairo University
    • Contact: Nour El Hoda M El Tarabishi; Phone Number: +2001001428905; Email: nourelhodaeltarabishi@dentistry.cu.edu.eg

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• 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).

Exclusion Criteria:

• 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).

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: IOS will be performed using commercially available IOS device. The scan data will be used to design	Device: Intraoral scanner (IOS); Intra-oral scanner will be used in the study to take a digital impression for the implants. 3D printed generic Scan bodies with unified shape and length replacing the traditional transfer copings will be press fitted on the trans-mucosal abutments and pickup cylinders that are screwed on the implants to capture their position and intra-oral scanning will be done.
Experimental: IOP will be performed using a specialized photogrammetry system. The photogrammetry data will be use	Device: Intraoral photogrammetry (IOP); IOP will be used in the study to take a digital impression for the implants. The scanner will be used to record the soft tissue anatomy and trans-mucosal abutments. 3D Scan bodies will be fitted on the trans-mucosal abutments that are screwed on the implants to capture their position and scanning will be done. A scan of the soft tissue and scan bodies will finally be conducted.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Scan time	At week 1 during the clinical visit of scanning the arch and bite registration.

Secondary Outcome Measures

Outcome Measure	Time Frame
Prosthetic complications	At 3, 6 months of delivery of final prosthesis.

Collaborators and Investigators

• Sponsor: Cairo University

Study record dates

Study Major Dates

• Study Start (Actual): August 1, 2025
• Primary Completion (Estimated): June 1, 2026
• Study Completion (Estimated): June 1, 2026

Study Registration Dates

• First Submitted: December 22, 2025
• First Submitted That Met QC Criteria: February 27, 2026
• First Posted (Actual): March 3, 2026

Study Record Updates

• Last Update Posted (Actual): March 3, 2026
• Last Update Submitted That Met QC Criteria: February 27, 2026
• Last Verified: February 1, 2026

More Information

Terms related to this study

• Other Study ID Numbers: 30725

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No