Precision of Digital Impressions in Complete-Arch Implant Rehabilitation: Evaluation of Two Digital Techniques

Clinical Evaluation of the Complete Arch Digital Impressions Accuracy Using Photogrammetry and Intraoral Scanning

Status

Completed

Phases

Unknown

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT07211022

Enrollment

Registered

2025-10-07

Start date

2025-10-25

Completion date

2026-03-25

Last updated

2026-04-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Complete Edentulism

Keywords

digital impression, photogrammetry, Intraoral scanning

Brief summary

This clinical trial evaluates the accuracy of two digital impression techniques intraoral photogrammetry and intraoral scanning in patients rehabilitated with full-arch implant-supported prostheses (All-on-4 and All-on-6 concepts).

Detailed description

The study aims to evaluate and compare two digital impression techniques, intraoral scanning and intraoral photogrammetry methods in terms of precision, accuracy (using conventional impression technique as reference), and passive fit of complete-arch implant supported restorations. The trial is an in vivo comparative study with direct 3D deviation analysis and evaluation.

Interventions

PROCEDUREDigital impression using intraoral scanner

Digital impression of complete- arch edentulous patients using intraoral scanner

PROCEDUREDigital impression using intraoral photogrammetry

Digital impression of complete-arch edentulous patients using intraoral photogrammetry

PROCEDUREConventional impression

Conventional impression of complete-arch edentulous patients

Study design

Allocation

NON_RANDOMIZED

Intervention model

SINGLE_GROUP

Primary purpose

TREATMENT

Masking

SINGLE (Outcomes Assessor)

Intervention model description

This is a comparative in vivo clinical study in which each participant will undergo both digital impressions IOS and Intraoral Photogrammetry , using conventional impression technique as reference.

Eligibility

Sex/Gender

ALL

Age

18 Years to 80 Years

Healthy volunteers

Inclusion criteria

* Adults ≥18 years * Edentulous maxilla or mandible * All-on-4 or All-on-6 implant supported restoration * Ability to provide informed consent

Exclusion criteria

* Severe systemic diseases (ASA III+) * Bisphosphonate therapy * Heavy bruxism * Inability to attend follow-up

Design outcomes

Primary

Measure	Time frame	Description
Digital impressions of all the enrolled patients	After 3 months from implant placement for all the enrolled patients	STL files of digital impressions, intraoral scanning and photogrammetry , of all the enrolled patients.

Secondary

Measure	Time frame	Description
Virtual analyses of implant positions	Within 3 months from digital impression	Three dimensional positional deviation for each abutment analog , as well as distance and angular deviations between all pairs of abutment analogs captured by intraoral scanning vs. intraoral photogrammetry digital impression - measured using metrology software (Geomagic Control X)

Countries

Albania

Contacts

PRINCIPAL_INVESTIGATORBrunilda Koci, Assoc. Prof.

Aldent University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 7, 2026