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OpenTrials
Completed

NCT Number: NCT05972148

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

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.

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Key information

Conditions

Edentulous Jaw Jaw Diseases Jaw, Edentulous Mouth Diseases Mouth, Edentulous Musculoskeletal Diseases Stomatognathic Diseases Tooth Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Harvard School of Dental Medicine

Boston, Massachusetts, 02115, United States

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Present with a completely edentulous arch with at least four implants
  • Have bone-level implants
  • Intended for restoration with a screw-retained abutment-level fixed implant-supported prosthesis.

Exclusion criteria

  • Patients unable to tolerate the digital scans impressions
  • Presented with implants other than bone-level platforms
  • Not intended for restorations with screw-retained abutment-level fixed implant-supported prosthesis
  • Not completely edentulous.

Treatment and study plan

Digital scanning

Other

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.

Photogrammetry

Other

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.

Primary outcomes

  1. To investigate the precision of intraoral scanner compared with photogrammetry in performing complete-arch digital implant impressions

    Time frame: During procedure [two hours]

Sponsors and collaborators

Lead sponsor

William Negreiros

Other

Collaborators

  • ITI International Team for Implantology, Switzerland

Registry information

Official study title

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

Important dates

Study start
2019
Primary completion
2020
Study completion
2022
First posted
Aug 2, 2023
Registry last updated
Aug 3, 2023

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.

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