NCT07209826

Evaluation of the Scanning Accuracy of Scanners Operating With Different Scanning Technologies in Mandibular and Maxillary Edentulous Ridges

In Vivo Evaluation of the Scanning Accuracy of Scanners Operating With Different Scanning Technologies in Mandibular and Maxillary Edentulous Ridges

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 30 (estimated)
• Sponsor: Ege University · Academic / Other
• Sex: All
• Age: 18 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

This study aims to evaluate the scanning accuracy of scanners equipped with Active Triangulation, Confocal Microscopy, and Multi-Direct-Capture technologies. Department of Prosthetic Dentistry, Faculty of Dentistry, Ege University , 30 patients who applied for a complete removable denture and met the inclusion criteria will have conventional impressions taken. The resulting master model (reference scan) will be scanned using an industrial scanner with high scanning accuracy (E4 lab scanner, 3shape, Denmark) to obtain digital data. Edentulous ridges; Active Triangulation (Medit i700, Seoul, South Korea), Confocal Microscopy (Trios 5, Henry Schein Dental, Gillingham, Kent, UK), and Multi-Direct-Capture technologies (iTero Lumina, Align Technologies, San Jose, California, USA) will be scanned three times using the scanning protocols recommended by the manufacturers and digitized. All digital data obtained will be evaluated using Geomagic (Studio 2015; 3D Systems Inc., Darmstadt, Germany) 3D analysis software to match the reference data and verify its accuracy according to the accepted reference measurement.

Detailed description

At Ege University Faculty of Dentistry Department of Prosthodontics, Type 4 (hard) plaster will be used to obtain models by taking impressions with Type A silicone impression material from 30 patients undergoing treatment for lower and/or upper complete (total) dentures who meet the inclusion criteria for the study. The model will be scanned using an industrial EOS scanner (E4 lab scanner, 3shape, Denmark). Three digital scans will be taken from each patient using three different IOS scanners (Trios 5 (Henry Schein Dental, Gillingham, Kent, UK), Medit i700 (Seoul, South Korea), and iTero Lumina (Align Technologies, San Jose, California, USA)), with each patient scanned three times using each scanner. The obtained data will be evaluated with a 3D analysis software program (Geomagic Studio 2015; 3D Systems Inc., Darmstadt, Germany) to match the traditional plaster model (reference) data. For normally distributed data, one-way ANOVA and post hoc Bonferroni test will be performed; for non-normally distributed data, Bonferroni and Kruskal-Wallis tests will be performed. Intergroup comparisons will be tested using the Tukey HSD test. All statistical analyses will be performed using statistical software (IBM SPSS Statistics, v22.0; IBM Corp., USA). It will be investigated whether there is a statistically significant difference in scanning accuracy between the three intraoral scanners. The study will evaluate three different scanning technologies: Active Triangulation (Medit i700, Seoul, South Korea), Confocal Microscopy technologies (Trios 5, Henry Schein Dental, Gillingham, Kent, UK), and Multi-unit-capture technologies (iTero Lumina, Align Technologies, San Jose, California, USA). A review of the literature reveals that there are few studies evaluating scanners with different technologies in terms of scanning technologies. The aim of this study is to evaluate the accuracy of scanners with different scanning technologies in completely edentulous arches.

Conditions

• Accuracy
• Measurement Reliability

Interventions

Type	Name	Description
OTHER	Trios 5	Each patient's edentulous ridges are planned to be scanned three times with Trios 5.To ensure optimum accuracy, scans were performed in a standard dark environment in accordance with the manufacturer's scanning protocols.
OTHER	iTero Lumina	Each patient's edentulous ridges are planned to be scanned three times with iTero Lumina.To ensure optimum accuracy, scans were performed in a standard dark environment in accordance with the manufacturer's scanning protocols.
OTHER	Medit i700	Each patient's edentulous ridges are planned to be scanned three times with Medit i700.To ensure optimum accuracy, scans were performed in a standard dark environment in accordance with the manufacturer's scanning protocols.
OTHER	E4 Lab Scanner	Conventional measurements will be taken from each patient, and the resulting master model (reference scan) will be scanned using an industrial scanner with high scanning accuracy (E4 lab scanner, 3shape, Denmark) to obtain digital data.

Timeline

• Start date: 2025-04-10
• Primary completion: 2026-01-01
• Completion: 2026-02-01
• First posted: 2025-10-07
• Last updated: 2025-10-07

Locations

1 site across 1 country: Turkey (Türkiye)