NCT05972148

Precision of Complete-arch Digital Implant Impressions With Intraoral Scanning Versus Photogrammetry

The Accuracy of Intraoral Scanning and Photogrammetry on the Clinical Fit of Long-span Frameworks

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 22 (actual)
• Sponsor: William Negreiros · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

The goal of this cross-over clinical trial is to investigate the precision of digital implant impressions using an intraoral scanner and photogrammetry in obtaining complete-arch implant-supported scans. The main question\[s\] it aims to answer are: * Is there a difference in precision between intraoral scans and photogrammetry in obtaining digital implant scans? * Will arch perimeter and jaw type (maxilla vs. mandible) affect the precision results? Procedures: At each appointment, participants existing permanent/temporary prosthesis or healing caps were unscrewed and temporarily removed for the period of the consultation appointment. Scanbodies were screwed into their implants for the duration of the appointment. They underwent two types of digital implant impression procedures (five times each), including intraoral scan and photogrammetry. Intraoral and extraoral photography were taken. At the end of each appointment, the scanbodies were removed, and existing bridge/healing caps were reinserted. The procedures were not painful or required any form of local anesthetic Comparison group: Researchers compared the precision of intraoral scanning vs. photogrammetry to see which device provided the best precision outcomes.

Conditions

• Edentulous Jaw

Interventions

Type	Name	Description
OTHER	Digital scanning	Five intraoral scans, one for each arch before the insertion of scanbodies, were obtained. The implant locations were then marked, and the software trimmed a 6mm diameter circular section of the scan from the implant locations to allow the scanbodies to be added. Abutment-level polyetheretherketone (PEEK) scanbodies were hand-tightened onto each implant and not moved for the remainder of the scans. Scanbodies were scanned using a circular scan path, and scanning was finalized.
OTHER	Photogrammetry	Rectangular-shaped titanium photogrammetry scanbodies were hand-tightened onto the Implants. Scanbodies were not moved before completing all scans for each arch. A total of five scans of each arch were obtained using a photogrammetry device. Measurements were successfully recorded by turning them green on the computer screen.

Timeline

• Start date: 2019-08-12
• Primary completion: 2020-09-20
• Completion: 2022-05-02
• First posted: 2023-08-02
• Last updated: 2023-08-03

Locations

1 site across 1 country: United States