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KMID : 1101020190440020059
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Journal of Oral Medicine and Pain
2019 Volume.44 No. 2 p.59 ~ p.64
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Articular Eminence Morphology of Temporomandibular Joint in Young Korean Adults
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Nam Hyun
Shim Young-Joo
Kang Nam-Hyun
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Abstract
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Purpose: The aim of this study was to analyse and evaluate the morphology of the articular eminence of temporomandibular joint in young Korean adults using cone-beam computed tomography (CBCT).
Methods: One hundred seventy-one subjects (59 males, 112 females) in the 20s were examined using CBCT. Width and height of articular eminence, top-roof line angle, best-fit line angle, joint space were measured. For the group comparisons, independent t-test was used with the level of significance established at p≤0.05.
Results: In asymptomatic young Korean adults, average eminence width was 9.49±1.62 mm in males and 9.33±1.36 mm in females. Average eminence height was 7.23±1.81 mm in males and 6.82±1.31 mm in females. Average eminence inclination of measured by toproof line angle was 37.09o±7.74o in males and 36.12o±5.65o in females. Average eminence inclination measured by best-fit line angle was 50.79o±11.49o in males and 48.43o±9.05o in females. Average joint space was 3.03±0.67 mm in males and 2.63±0.68 mm in females.
Conclusions: Increasing age did not affect the morphology of the articular eminence in asymptomatic young Korean adults. Males had slightly larger eminence width, height, toproof line angle, best-fit line angle and joint space, but no statistical significance (p>0.05) was observed only in the joint space (p=0.001). There was no side-to-side difference in morphology (p>0.05).
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KEYWORD
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Articular eminence, Cone-beam computed tomography, Temporomandibular joint
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