Abstract
ObjectivesThe purpose of this study was to investigate the condylar morphology and position of Koreans using cone-beam computed tomography (CBCT) images. Analyzing the mean values of this study with reference to left and right sides, gender, and age will help to understand the size of the condyle and glenoid fossa, condylar morphology, and temporomandibular joint (TMJ) symmetry for establishing the standard temporomandibular joint structures of Koreans and then design the standard temporomandibular joint prosthesis for Koreans.ResultsThere was no significant result in the condyle size, condyle axis angle, joint space, fossa depth, and mandibular body size between the left and right sides (p > 0.05). On the other hand, the mediolateral width of the condyle and mandibular body size show significantly different with the gender (P < 0.05). Also, significant differences were found in condyle size, joint space, fossa depth, and mandibular body size according to age groups (p < 0.05).ConclusionsCondylar position and morphology vary according to side, age, and gender. The results of this study are expected to help in customizing a treatment for the patients who need TMJ reconstruction by predicting the TMJ morphology according to age and gender and design the standard temporomandibular joint prosthesis for the Koreans.
Highlights
The temporomandibular joint (TMJ) is a joint formed between the mandibular condyle and the base of the cranial bone
We checked the morphology of the mandibular condyle
Comparisons between left and right sides There was no significant difference in condylar size, angle, joint space, fossa depth, and mandibular body in the left and right (P > 0.05)
Summary
The temporomandibular joint (TMJ) is a joint formed between the mandibular condyle and the base of the cranial bone. This joint is essential for stable occlusion and mastication [1]. The complex structure of the TMJ makes it difficult to perform radiographic examinations, and an accurate diagnosis requires several types of radiographic images [10]. Conventional two-dimensional (2D) radiography had been the main tool to observe the TMJ This 2D technique is not accurate owing to the overlap of neighboring structures, as well as the low sensitivity to changes in both condylar and temporal bone components [11, 12]. The advancement of three-dimensional (3D) imaging has enabled a much more accurate analysis of TMJ than ever
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