View : 18 Download: 0

A comparison of the precision of three-dimensional images acquired by 2 digital intraoral scanners: effects of tooth irregularity and scanning direction

Title
A comparison of the precision of three-dimensional images acquired by 2 digital intraoral scanners: effects of tooth irregularity and scanning direction
Authors
Anh, Ji-wonPark, Ji-ManChun, Youn-SicKim, MiaeKim, Minji
Ewha Authors
전윤식김민지
SCOPUS Author ID
전윤식scopus; 김민지scopus
Issue Date
2016
Journal Title
KOREAN JOURNAL OF ORTHODONTICS
ISSN
2234-7518JCR Link2005-372XJCR Link
Citation
vol. 46, no. 1, pp. 3 - 12
Keywords
Three-dimensional scannerDigital modelsDental cast analysisThree-dimensional diagnosis and treatment planning
Publisher
KOREAN ASSOC ORTHODONTISTS
Indexed
SCIE; SCOPUS WOS scopus
Abstract
Objective: The purpose of this study was to compare the precision of three-dimensional (3D) images acquired using iTero (R) (Align Technology Inc., San Jose, CA, USA) and Trios (R) (3Shape Dental Systems, Copenhagen, Denmark) digital intraoral scanners, and to evaluate the effects of the severity of tooth irregularities and scanning sequence on precision. Methods: Dental arch models were fabricated with differing degrees of tooth irregularity and divided into 2 groups based on scanning sequence. To assess their precision, images were superimposed and an optimized superimposition algorithm was employed to measure any 3D deviation. The t-test, paired t-test, and one-way ANOVA were performed (p < 0.05) for statistical analysis. Results: The iTero (R) and Trios (R) systems showed no statistically significant difference in precision among models with differing degrees of tooth irregularity. However, there were statistically significant differences in the precision of the 2 scanners when the starting points of scanning were different. The iTero (R) scanner (mean deviation, 29.84 12.08 mu m) proved to be less precise than the Trios (R) scanner (22.17 +/- 4.47 mu m). Conclusions: The precision of 3D images differed according to the degree of tooth irregularity, scanning sequence, and scanner type. However, from a clinical standpoint, both scanners were highly accurate regardless of the degree of tooth irregularity.
DOI
10.4041/kjod.2016.46.1.3
Appears in Collections:
의학전문대학원 > 의학과 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE