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Comparison of digital dental images yielded by digital dental casts, cone-beam computed tomography, and multislice computed tomography for measurement of dental area

Authors
 Sang-Hoon Kang  ;  Yeon-Ho Kim  ;  Moon-Key Kim 
Citation
 ORAL RADIOLOGY, Vol.33 : 23-31, 2017-03 
Journal Title
ORAL RADIOLOGY
ISSN
 0911-6028 
Issue Date
2017-03
Keywords
Dental model ; Computed tomography ; Cone-beam computed tomography ; Multislice computed tomography
Abstract
Objectives
We investigated and compared the errors generated by multislice computed tomography (MSCT), cone-beam computed tomography (CBCT), and digital dental casts when used to provide digital data about dental structures.

Methods
Ten A20 skull models were scanned with MSCT and CBCT, and dental plaster cast models were optically scanned in three dimensions. The maxillary dental area was then compared. The distance between the three-dimensional scan data of the skull and each set of digital dental data were measured. Reference data were then overlapped with the experimental digital model using surface-based registration. The distance of errors was measured with the shortest distance measurement function. The distances between each experimental digital model and the reference scan data were measured, and error values were determined for all maxillary teeth and each tooth surface area. Errors were measured for all teeth from the central incisors to the second molar on both the left and right sides. Errors were measured from the mesial, distal, and labial surfaces and the tooth cusp tip area for each tooth.

Results
The digital dental casts had the smallest error (p < 0.001). The error in the digital dental casts (mean ± standard deviation) was 0.10 ± 0.12 mm. The CBCT error was 0.34 ± 0.38 mm, which was significantly greater than the MSCT error (0.19 ± 0.16 mm) (p < 0.001).

Conclusions
We recommend the use of digital dental casts with digital dental imaging for three-dimensional measurement of the dental area because this technique had the smallest errors.
Full Text
https://link.springer.com/article/10.1007/s11282-016-0242-z
DOI
10.1007/s11282-016-0242-z
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Surgery (구강악안면외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Moon Key(김문기)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/195858
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