Anthropologic Study of Korean Mandible Using Three--dimensional Computed Tomography--Evaluation of the Accuracy of a Three--dimensional Image.
10.11637/kjpa.1999.12.1.13
- Author:
Kee Deog KIM
1
;
Hee Jin KIM
;
Seung Ho HAN
;
Chang Seo PARK
Author Information
1. Department of Dental Radiology, College of Dentistry, Yonsei University, Korea.
- Publication Type:Original Article
- Keywords:
Mandible;
Anthropologic measurement;
CT;
3D CT;
Reformatted image
- MeSH:
Mandible*
- From:Korean Journal of Physical Anthropology
1999;12(1):13-22
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The authors investigated the accuracy and reliability of three-dimensional and reformatted computed tomographic images by comparing direct measurements on the dry mandible and the measurements on three-dimensional and reformatted computed tomographic images of the dry mandible. 29 Korean dry mandibles were imaged and 16 items of measurements were measured. The results were as follows; 1. The correlation coefficients between the two methods were between 0.95 and 0.99, except for the measurement of Go-Pg. 2. The mean differences of the measurements between the two methods ranged from -0.52 to 0.42 mm and the range of standard deviations for these mean differences was 0.28 to 2.70 mm. 3. Of the difference scores in total measurements, 75.9% were within 1 mm and 95.9% were within 2mm. In conclusion, the agreement between the two methods was excellent and the measurements of the threedimensional and reformatted computed tomographic images were reliable. The three-dimensional and reformatted computed tomographic images can be an useful method in anthropologic study.
