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

Aldent University

Status: Enrolling

Conditions: Complete Edentulism

Treatments: Procedure: Conventional impression; Procedure: Digital impression using intraoral scanner; Procedure: Digital impression using intraoral photogrammetry

Study type: Interventional

Funder types: Other

Identifiers

NCT07211022

DIGIMP-FULLARCH-2025-01

Details and patient eligibility

About

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).

Full 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 virtual fit of complete-arch implant supported restorations. The trial is an in vivo cross over study with direct 3D deviation analysis and evaluation.

Enrollment: 12 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No 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

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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12 participants in 3 patient groups

Intraoral Scanner

Active Comparator group

Description:

Digital scanning of edentulous arches using intraoral scanner (Aoralscan Elite, Shining 3D)

Treatment:

Procedure: Digital impression using intraoral scanner

Intraoral Photogrammetry

Active Comparator group

Description:

Digital scanning of edentulous arches using intraoral photogrammetry (Aoralscan Elite, Shining 3D)

Treatment:

Procedure: Digital impression using intraoral photogrammetry

Conventional impression of edentulous arches

Active Comparator group

Description:

Conventional impression of complete- arch edentulous patients

Treatment:

Procedure: Conventional impression