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

NCT05972148 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 22

Last updated 2023-08-03

No results posted yet for this study

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

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.

Sponsors & Collaborators

  • ITI International Team for Implantology, Switzerland

    collaborator OTHER

  • William Negreiros

    lead OTHER

Principal Investigators

  • German O Gallucci, DMD · Harvard School of Dental Medicine

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-08-12
Primary Completion
2020-09-20
Completion
2022-05-02

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05972148 on ClinicalTrials.gov