Accuracy of Intraoral Photogrammetry Scanner in Complete Arch Digital Implant Impression

Accuracy of Intraoral Photogrammetry Scanner (IPS) in Complete Arch Digital Implant Impression: an in Vivo Prospective Comparative Study

Intra oral scanning can perform a full digital workflow right on the patient's mouth. Recently an intra-oral photogrammetry scanner has been introduced in the market that can make intra-oral tissue scanning in addition to a built-in photogrammetry technology so that it can capture fixture locations through special intra-oral scan flags.

Study Overview

• Status: Completed
• Conditions: Dental Implant
• Intervention / Treatment: Procedure: Digital scanning; Procedure: Two digital impressions will be recorded, one with a conventional intra-oral scanner and another one with an intra-oral photogrammetry scanner.

Detailed Description

Intraoral scanning had several advantages to intraoral direct scanning, including less storage and transportation needs, faster scanning times, and increased patient comfort. The intraoral scan bodies are used as digital fixture locators when using IOSs for implant impressions.

Photogrammetry is the science and technology of obtaining reliable information about physical objects through the process of recording, measuring, and interpreting photographic images and patterns of electromagnetic radiant imagery. The utilization of photogrammetry in the dental field leads to exclusion of intraoral dental and gingival anatomies while scanning the implant coordinates. In addition, no need for stitching during full arch implant scanning which is reflected in the trueness and precision of the scanned object. Exclusion of unstable mucosa during scanning and avoidance of stitching make the passive seating of implant prosthesis a more predictable procedure especially when compared with intra-oral scanning only.

Up to this moment, all photogrammetry systems available in the market are considered extraoral systems that require an additional impression for soft tissue capture whether conventional or digital. Recently an intra-oral photogrammetry scanner (IPS) has been introduced in the market that can make intra-oral tissue scanning in addition to a built-in photogrammetry technology so that it can capture fixture locations through special intra-oral scan flags.

• Study Type: Interventional
• Enrollment (Actual): 60
• Phase: Phase 1

Contacts and Locations

Study Locations

• Egypt
  • Abbassia
    • Cairo, Abbassia, Egypt, 11566
      • Faculty of dentistry Ain Shams University
    • Cairo, Abbassia, Egypt, 15666
      • Faculty of dentistry Ain Shams University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• participants had received 4-6 implants in 1 edentulous arch.
• Participants had received 1-piece implant-supported complete-arch fixed dental prostheses.

Exclusion Criteria:

• Systemic conditions as diabetes.
• Osteoporosis patients.
• Immunocompromised patients.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: intraoral photogrammetry scanning	Procedure: Digital scanning; . For each patient three digital files will be obtained: One reference scan, one conventional IOS scan, and one IPS scan. All the STL files will be imported to dental CAD software, and scan bodies will be converted to implant multi-unit ti-base using a digital library. The updated STL files will be imported to inspection software Mimics for trueness assessments. The three-dimensional discrepancy between 2 STL files will be evaluated in terms of linear and angular deviation. A central point & central axis of the virtual MUA ti-base was used for deviation measurements. Linear deviations will be assessed for each MUA tibase on the three-space axis (X longitudinal, Y lateral, and Z vertical) using the center of the ti-base heads for the deviation measurement. Angular deviations were assessed as the angles formed by the two lines passing perpendicularly through the centers of the test image and the reference image of each ti-base.; Procedure: Two digital impressions will be recorded, one with a conventional intra-oral scanner and another one with an intra-oral photogrammetry scanner.; . For each patient three digital files will be obtained: One reference scan, one conventional IOS scan, and one IPS scan. All the STL files will be imported to dental CAD software, and scan bodies will be converted to implant multi-unit ti-base using a digital library. The updated STL files will be imported to inspection software Mimics for trueness assessments. The three-dimensional discrepancy between 2 STL files will be evaluated in terms of linear and angular deviation. A central point & central axis of the virtual MUA ti-base was used for deviation measurements. Linear deviations will be assessed for each MUA tibase on the three-space axis (X longitudinal, Y lateral, and Z vertical) using the center of the ti-base heads for the deviation measurement. Angular deviations were assessed as the angles formed by the two lines passing perpendicularly through the centers of the test image and the reference image of each ti-base.
Active Comparator: Intra oral scanning	Procedure: Digital scanning; . For each patient three digital files will be obtained: One reference scan, one conventional IOS scan, and one IPS scan. All the STL files will be imported to dental CAD software, and scan bodies will be converted to implant multi-unit ti-base using a digital library. The updated STL files will be imported to inspection software Mimics for trueness assessments. The three-dimensional discrepancy between 2 STL files will be evaluated in terms of linear and angular deviation. A central point & central axis of the virtual MUA ti-base was used for deviation measurements. Linear deviations will be assessed for each MUA tibase on the three-space axis (X longitudinal, Y lateral, and Z vertical) using the center of the ti-base heads for the deviation measurement. Angular deviations were assessed as the angles formed by the two lines passing perpendicularly through the centers of the test image and the reference image of each ti-base.; Procedure: Two digital impressions will be recorded, one with a conventional intra-oral scanner and another one with an intra-oral photogrammetry scanner.; . For each patient three digital files will be obtained: One reference scan, one conventional IOS scan, and one IPS scan. All the STL files will be imported to dental CAD software, and scan bodies will be converted to implant multi-unit ti-base using a digital library. The updated STL files will be imported to inspection software Mimics for trueness assessments. The three-dimensional discrepancy between 2 STL files will be evaluated in terms of linear and angular deviation. A central point & central axis of the virtual MUA ti-base was used for deviation measurements. Linear deviations will be assessed for each MUA tibase on the three-space axis (X longitudinal, Y lateral, and Z vertical) using the center of the ti-base heads for the deviation measurement. Angular deviations were assessed as the angles formed by the two lines passing perpendicularly through the centers of the test image and the reference image of each ti-base.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Degree of Trueness	The clinical performance of conventional intraoral scanners (IOS) and intraoral photogrammetry scanners (IPS) for each patient enrolled in the study with a paired comparison of the deviation differences	4 months following implant insertion

Collaborators and Investigators

• Sponsor: Ain Shams University
• Collaborators: Assiut University

Study record dates

Study Major Dates

• Study Start (Actual): June 20, 2024
• Primary Completion (Actual): August 10, 2024
• Study Completion (Actual): August 20, 2024

Study Registration Dates

• First Submitted: September 7, 2024
• First Submitted That Met QC Criteria: September 14, 2024
• First Posted (Estimated): September 19, 2024

Study Record Updates

• Last Update Posted (Estimated): September 19, 2024
• Last Update Submitted That Met QC Criteria: September 14, 2024
• Last Verified: July 1, 2024

More Information

Terms related to this study

• Keywords: Digital; photogrammetry; Intra oral scanner
• Other Study ID Numbers: 112899

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
• product manufactured in and exported from the U.S.: No