Comparison of Condylar Morphology and Position between Angle Class Ⅰ and Class Ⅱ  Malocclusion in Adults.

doi:10.13701/j.cnki.kqyxyj.2018.03.018

Abstract

Abstract: Objective: To analyze and compare the difference of condylar morphology and position between Angle Class Ⅰ and Class Ⅱ malocclusion patients using cone-beam CT (CBCT). Methods: Nineteen ClassⅠ adults, 19 Class Ⅱ division 1 adults and 19 Class Ⅱ division 2 adults were selected in this study. Each patient underwent CBCT. The images in the oblique position perpendicular to the condyloid process were reconstructed by Invivo 5.0 (through Exam Vision software). The condylar morphology and position were measured by Invivio 5.0. The data were processed with SPSS 21.0 software package. Results: There were significant differences in the anterior joint space, in the posterior joint space, and in the depth of glenoid fossa among different malocclusion patients. The length of condyle were significant different between Class Ⅰ and Class Ⅱ division 1. Fifty percent of the condylloid process in Class Ⅰ was in the middle place. Fifty-five percent in Class Ⅱ division 1 and 84% in Class Ⅱ division 2 of the condylloid were in the posterior space. Conclusion: The anterior joint space is larger in Class Ⅱ than Class Ⅰ. The posterior joint space is the lowest in Class Ⅱ division 2 among three malocclusions. The condylloid is in the posterior space in Class Ⅱ.

Key words: Malocclusion, Condylar morphology and position, CBCT

LU Xing-long, YANG Jian-hao, WANG Yi-peng, ZHANG Zhi-wei, CHEN Chang, ZHANG Yue-lan, CAI Liu-yi. Comparison of Condylar Morphology and Position between Angle Class Ⅰ and Class Ⅱ Malocclusion in Adults.[J]. Journal of Oral Science Research, 2018, 34(3): 286-289.

References

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Comparison of Condylar Morphology and Position between Angle Class Ⅰ and Class Ⅱ Malocclusion in Adults.

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