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NCT Number: NCT07446790

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

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.

Recruiting

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Key information

Conditions

Scan Time

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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).

Treatment and study plan

Intraoral photogrammetry (IOP)

Device

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.

Intraoral scanner (IOS)

Device

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.

Primary outcomes

  1. Scan time

    Time frame: At week 1 during the clinical visit of scanning the arch and bite registration.

Secondary outcomes

  1. Prosthetic complications

    Time frame: At 3, 6 months of delivery of final prosthesis.

Study contacts

Contact information is provided by the study sponsor or research team.

Nour El Hoda M El Tarabishi

CONTACT

[email protected]

+2001001428905

Sponsors and collaborators

Lead sponsor

Cairo University

Other

Registry information

Official study title

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

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Mar 3, 2026
Registry last updated
Mar 3, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.