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Dimensional analysis of condylar head using 3D scanned models of human dry skulls: A comparative study of measurement
Napas Lappanakokiat1, Jo-Eun Kim2, Joo-Young Park3
1Department of Oral Anatomy, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea.
Objective:
This study aimed to examine the dimensional characteristics of the condylar head in 3D models of dry human mandibles using two different measurement methods.
Methods:
A total of 46 condylar heads from 29 dry human mandibles were scanned using a 3D scanner. Two perpendicular reference planes were used to identify the most medial, lateral, anterior, and posterior points. Measurements in the mediolateral and anteroposterior dimensions were taken using the direct measurement method, and the proposed method using the two reference planes. Paired t-tests were performed to compare the results.
Results:
Significant differences were observed, particularly in anteroposterior dimensions, which were smaller when using the proposed method (p < .001).
Conclusion:
Measurements of the condylar head should be taken from the outermost points. Given the nature of bone remodeling, relying solely on a single cut from CBCT images for dimensional evaluation may result in missing potentially significant changes.
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