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

Ege University

Status: Active, not recruiting

Conditions: Measurement Reliability; Accuracy

Treatments: Other: E4 Lab Scanner; Other: Medit i700; Other: Trios 5; Other: iTero Lumina

Study type: Interventional

Funder types: Other

Identifiers

NCT07209826

Ege-DHF-ASN-01

Details and patient eligibility

About

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.

Full 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.

Enrollment: 30 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Individuals aged 18 to 80
• Upper and lower edentulous ridges
• Individuals who have not received radiation therapy or chemotherapy
• Individuals who have not been diagnosed with dry mouth
• Individuals without active mouth sores due to systemic diseases
• Patients who accept the study conditions will be included in the study.

Exclusion criteria

• Patients whose extraction site has not yet healed or whose last tooth extraction was less than 2 months ago
• Individuals who have undergone radiation therapy and chemotherapy
• Individuals diagnosed with dry mouth
• Individuals with active mouth sores due to systemic diseases
• Patients who do not agree to the study conditions will not be included in the study.

Trial design

Primary purpose: Other

Allocation: Non-Randomized

Interventional model: Factorial Assignment

Masking: None (Open label)

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30 participants in 4 patient groups

Trios 5 Intra-oral scanner

Experimental group

Description:

It is an intraoral scanner that works with confocal microscopy scanning technology. The purpose of using the intraoral scanner in our work is to take intraoral digital measurements by scanning edentulous ridges. They record the patient's intraoral images in high resolution.

Treatment:

Other: iTero Lumina

Other: Medit i700

Other: E4 Lab Scanner

Medit i700 Intra-oral Scanner

Experimental group

Description:

It is an intraoral scanner that works with active triangulation scanning technology. In our study, the purpose of using the intraoral scanner is to take intraoral digital measurements by scanning edentulous ridges. They record the patient's intraoral images in high resolution.

Treatment:

Other: iTero Lumina

Other: Trios 5

Other: E4 Lab Scanner

iTero Lumina Intra-oral Scanner

Experimental group

Description:

It is an intraoral scanner that works with multi-unit-capture scanning technology. In this study, using the new generation digital scanning technology of iTero Lumina, intraoral digital measurements are taken by scanning edentulous ridges. They record the patient's intraoral images in high resolution.

Treatment:

Other: Medit i700

Other: Trios 5

Other: E4 Lab Scanner

E4 Lab Scanner Extra-oral Scanner

Active Comparator group

Description:

The 3Shape E4 laboratory scanner (EOS) is a desktop laboratory scanner with an indirect scanning procedure. It features fast and accurate scanning technology. With 3Shape E4 scanners, the scanning process begins as soon as you place the model inside the scanner. It records the digital measurement data of the model. In our study, the primary model (reference scan) obtained by taking conventional measurements from the patient is scanned using a laboratory scanner, and digital data is obtained.

Treatment:

Other: iTero Lumina

Other: Medit i700

Other: Trios 5