PhD Scientific Days 2024

Dental Research

Complete-Arch Accuracy of Seven Intraoral Scanners Measured by the Virtual-Fit Method

Előadó neve

Dr. Borbola, Daniel

Neptun code

OVQ7JB

Előadó munkahelye

Semmelweis University Department of Restorative Dentistry and Endodontics

Előadó telefonszáma

+36706124236

Előadó e-mail címe

borbola.daniel.jozsef@semmelweis.hu

Az előadás címe

Complete-Arch Accuracy of Seven Intraoral Scanners Measured by the Virtual-Fit Method

Szerző(k) neve és munkahelye

Daniel Borbola¹, Janos Vag¹

1: Semmelweis University Department of Restorative Dentistry and Endodontics

Bemutatás módja

Szóbeli

Szekció

Dental Research

Language of the presentation

English

Preferred session

Dental Research

Összefoglaló szövege

Introduction: In digital prosthetic workflows, dental prostheses are designed and manufactured onto the digital model created from the intraoral scanners (IOS). Therefore, the scanner’s accuracy is essential to producing high-quality prostheses.
Aims: This study aimed to compare the accuracy of seven different IOSs through the virtual fit of digitally designed complete-arch frameworks.
Methods: Four complete arch models with prepared teeth were scanned by a high-precision industrial scanner (ATOS Q) to produce reference scans. Models were also scanned by seven IOSs: Shining3D Aoralscan3, Planmeca EmeraldS, Eighteeth Helios600, iTero Lumina, Medit i700, Dentsply Sirona Primescan, 3Shape Trios5 IOSs three times each. Then, the teeth abutments were digitally segmented from the models and used for further analysis. Fixed complete denture frameworks with a 70µm cement gap on each IOS scans were designed in Exocad software (n=84). The framework was aligned with the reference scan in Zeiss Inspect software without being interlaced (i.e., the virtual fit method). The mean absolute distance between the surfaces was measured in the marginal area to estimate the marginal gap and is given in the median (first – fourth quartiles) for each IOS. The median gaps of IOSs were compared statistically by the Kruskall-Wallis test.
Results: The 7 IOSs were grouped into three based on the statistical differences. The lowest marginal gaps were measured for Medit i700 (43 (37-46) µm), for Primescan (42 (30-57) µm), and for EmeraldS (45 (41-57) µm). They were not significantly different from each other. The second group comprised the Aoralscan3 (70 (50-163) µm), Lumina (67 (53-103) µm), and Trios5 (70 (61-79) µm). The marginal gap was significantly (p<0.05) larger in the second than in the first group. The marginal gap for Helios600 (118 (97-140)µm) was significantly larger than the value of the other two groups.
Conclusion: The Medit i700, Primescan, EmeraldS, Lumina, and Trios5 accomplish the accuracy required for digital prosthetic workflow having an accuracy of less than 100 µm. However, due to the variability in accuracy, the Aoralscan3 and Helios600 should be used with caution for complete-arch scanning.
Funding: No funding received.

University

Semmelweis University

Supervisor

Prof. Dr. Janos Vag

Publication of my abstract

I do not give consent to the publication of my abstract on the website of the congress.

Kind

Szabad

Status

elfogadva

Accepted presentation method

szóbeli

Előadás fájl jóváhagyás

nem rendelkezett róla

Előadó

7443

Start

10:15

End

10:25