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Comparison of two intraoral scanners based on three-dimensional surface analysis
1Department of Orthodontics, School of Dentistry, Chonnam National University, 33 Yongbong-ro, Buk-gu, Gwangju, 61186, South Korea. ortholkm@jnu.ac.kr.
Progress in Orthodontics
|February 13, 2018
Summary
The iTero and TRIOS intraoral scanners showed minimal average differences of 0.057 mm (maxilla) and 0.069 mm (mandible). Despite minor posterior deviations, these digital impression systems demonstrated no statistically significant differences in accuracy for dental applications.
Area of Science:
- Digital Dentistry
- Dental Technology
- Oral Scanning
Background:
- Comparison of leading intraoral scanners: iTero and TRIOS.
- Evaluation of digital impression systems in clinical dental practice.
Purpose of the Study:
- To assess the accuracy and differences between iTero and TRIOS intraoral scanners.
- To compare digital scans with conventional alginate impressions using 3D surface analysis.
Main Methods:
- In vivo study involving 32 participants.
- Acquisition of intraoral scans using iTero and TRIOS, alongside conventional alginate impressions.
- Three-dimensional surface analysis and color-mapping to quantify scan differences.
Main Results:
- Average differences between iTero and TRIOS scans: 0.057 mm (maxilla), 0.069 mm (mandible).
- Color mapping revealed localized deviations in posterior areas.
- No statistically significant difference in 3D directional accuracy between the two scanners.
Conclusions:
- Both iTero and TRIOS intraoral scanners exhibit high accuracy in clinical settings.
- Despite minor visible deviations, the scanners are statistically comparable for dental use.
- Digital impression technology offers reliable alternatives to traditional methods.
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