It has been more than seven decades that traditional two-dimensional (2D) image develops into threedimensional (3D) image. Due to the limited technology, 2D lateral cephalograms are traditionally used for airway assessment; however; the problem with cephalometry is that the 3D airway change can only be measured by linear measurement. Since 1990s, the development of cone beam computed tomography (CBCT) has offered more information for orthodontists, which is considered to be a diagnostic tool and initially served as the radiographic standard for airway assessment for patients with obstructive sleep apnea (OSA). Over the years, more studies on 3D reconstruction in airway assessment have been published. This article makes some literary reviews and discusses the correlation between 2D and 3D methods.
Tseng, Wei-Ting; Huang, Yao-Der; Chang, Jenny Zwei-Chieng; Lan, Ming-Hsien; Chen, Shun-Hsin; and Wu, Yun-Yun
"The Seond Series of "Orthodontic Treatment's Influence over Upper Airway": The Correlations among 2D and 3D Methods in Airway Evaluation,"
Taiwanese Journal of Orthodontics: Vol. 26:
3, Article 2.
https://doi.org/10.30036/TJO.201503_26(3).0002 Available at: https://www.tjo.org.tw/tjo/vol26/iss3/2
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