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A comparison of the accuracy of intraoral scanners using an intraoral environment simulator
Hye-Nan Park1, Young-Jun Lim2, Won-Jin Yi3
1Department of Oral Anatomy, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
Purpose:
The aim of this study was to design an intraoral environment simulator and to assess the accuracy of two intraoral scanners using the simulator.
Materials And Methods:
A box-shaped intraoral environment simulator was designed to simulate two specific intraoral environments. The cast was scanned 10 times by Identica Blue (MEDIT, Seoul, South Korea), TRIOS (3Shape, Copenhagen, Denmark), and CS3500 (Carestream Dental, Georgia, USA) scanners in the two simulated groups. The distances between the left and right canines (D3), first molars (D6), second molars (D7), and the left canine and left second molar (D37) were measured. The distance data were analyzed by the Kruskal-Wallis test.
Results:
The differences in intraoral environments were not statistically significant (P>.05). Between intraoral scanners, statistically significant differences (P<.05) were revealed by the Kruskal-Wallis test with regard to D3 and D6.
Conclusion:
No difference due to the intraoral environment was revealed. The simulator will contribute to the higher accuracy of intraoral scanners in the future.
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Accuracy is defined as the closeness of the measured value to the true or actual value. In engineering mechanics, repeated measurements are taken during theoretical or experimental analyses to ensure that the result is precise and accurate.
The accuracy of any solution is based on the...