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Analysis on the Accuracy of Intraoral Scanners: The Effects of Mandibular Anterior Interdental Space

Title
Analysis on the Accuracy of Intraoral Scanners: The Effects of Mandibular Anterior Interdental Space
Authors
Chun, Ji-hyeTahk, Ji HyunChun, Youn-SicPark, Ji-ManKim, Minji
Ewha Authors
전윤식김민지
SCOPUS Author ID
전윤식scopus; 김민지scopus
Issue Date
2017
Journal Title
APPLIED SCIENCES-BASEL
ISSN
2076-3417JCR Link
Citation
vol. 7, no. 7
Keywords
intraoral scannerscanning mandibular archinterdental spaceaccuracy
Publisher
MDPI AG
Indexed
SCIE; SCOPUS WOS scopus
Abstract
In this study, we evaluated the effects of mandibular anterior interdental space on the accuracy of intraoral scanners. Four models of mandibular arch with varying distances of anterior interdental space were analyzed; incisors were evenly spaced out between the two canines by 0 mm, 1 mm, 3 mm, and 5 mm. The full arch of each model was scanned 10 times with iTero (R) and Trios (R). The images were superimposed with those from the reference scanner (Sensable S3) and compared using Geomagic Verify. Statistical analysis was conducted using a t-test, paired t-test, and one-way analysis of variance (ANOVA). Differences in the accuracy of images were statistically significant according to both iTero (R) and Trios (R); a greater deviation was noted with increasing anterior interdental space (p < 0.05). Upon dividing the lower arch into five sections, larger deviation was observed with iTero (R) in the molar area, except in the model with 1 mm space. With Trios (R), the largest deviation was observed in the right molar area in all models. The maximum deviations of intermolar width were 0.66 mm and 0.76 mm in iTero (R) and Trios (R), respectively. This comparison suggests that Trios (R) demonstrates a higher accuracy than iTero (R) in all models and in all sections of the arch. However, the mean deviations indicate that both iTero (R) and Trios (R) are clinically acceptable.
DOI
10.3390/app7070719
Appears in Collections:
의과대학 > 의학과 > Journal papers
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