Korean J Phys Anthropol.  1999 Jun;12(1):13-22.

Anthropologic Study of Korean Mandible Using Three--dimensional Computed Tomography--Evaluation of the Accuracy of a Three--dimensional Image

• Kim KD
• Kim HJ
• Han SH
• Park CS

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.

Keyword

Mandible; Anthropologic measurement; CT; 3D CT; Reformatted image

MeSH Terms

Mandible*