Articular Eminence Morphology of Temporomandibular Joint in Young Korean Adults
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³²Çö ( Nam Hyun ) - Wonkwang University Daejeon Dental Hospital Department of Orofacial Pain and Oral Medicine
½É¿µÁÖ ( Shim Young-Joo ) - Wonkwang University Daejeon Dental Hospital Department of Orofacial Pain and Oral Medicine
°³²Çö ( Kang Nam-Hyun ) - Wonkwang University Daejeon Dental Hospital Department of Orofacial Pain and Oral Medicine
Abstract
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¡Â0.05.
Results: In asymptomatic young Korean adults, average eminence width was 9.49¡¾1.62 mm in males and 9.33¡¾1.36 mm in females. Average eminence height was 7.23¡¾1.81 mm in males and 6.82¡¾1.31 mm in females. Average eminence inclination of measured by toproof line angle was 37.09o¡¾7.74o in males and 36.12o¡¾5.65o in females. Average eminence inclination measured by best-fit line angle was 50.79o¡¾11.49o in males and 48.43o¡¾9.05o in females. Average joint space was 3.03¡¾0.67 mm in males and 2.63¡¾0.68 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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Articular eminence; Cone-beam computed tomography; Temporomandibular joint
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