Cone beam CT evaluation of unilateral scissors-bite posterior molar patients with orthodontic treatment: condylar morphology and location

doi:10.16098/j.issn.0529-1356.2015.06.015

Abstract

Abstract:

Objective To analyse the condylar morphology and location of the scissors-bite patients by cone beam computed tomography(CBCT),and investigate the remodeling changes of condylar after scissors-bite side solved. Methods Twenty cases between 18-28 years old with unilateral scissors-bite were selected as the experimental group and 25 cases between 18-30 years old with ClassⅠmalocclusion were selected as the control group.All the forty-five subjects had no orthodontic treatment before. Both groups had three-dimensional CBCT imaging with examvision system. Different measurement points and lines of the condylar morphology and location, and 7 measured values were statisticallly analyzed. Results None statistically significant was observed in control group（P＞0.05）, The mandibular fossa depth and the condylar height showed statistically significant differences between the scissors-bite and non-scissors-bite sides（t=13.271,t=15.278, P＜0.01）. After treatment and kept stable for 3 month, statistical significances of anterior joint space and posterior joint space were found as compared with before（t=5.524,t=-5.119,P＜0.01）. Conclusion There are differences in condylar morphology and location of unilateral scissors-bite posterior molar patients, after -bite solved for 3 month. There is a tendency to more downward and forward positions in fossa, and there are no special characteristic changes in the condylar morphology observed in this study.

Key words: Scissors-bite, Condylar, Cone beam CT(CBCT), Human

WANG Xin SHEN Huan* YANG Yong-jin LI Zhi-ren*. Cone beam CT evaluation of unilateral scissors-bite posterior molar patients with orthodontic treatment: condylar morphology and location[J]. AAS, 2015, 46(6): 812-818.

References

［1］Lin Zh, Rong JH, Zhang QY, et al. Discussion the malocclusion of second molars［J］.Chinese Journal of Stomatol Medicine,1992,27(6):356-358.(in Chinese)
林珠, 戎建华，张巧余，等. 第二磨牙错的初步探讨［J］.中华口腔医学杂志，1992,27（6）：356-358. 
［2］Nocini PF, Salparellli A, Consoli U, et al. Brodie’s synodrome: A report of a typical cases［J］. Minerva Stomatol, 1995, 44 (7-8): 361-368.
［3］Kennedy DB, Osepchook M. Unilateral posterior crossbite with mandibular shift［J］. J Can Dent Assoc, 2005, 71(8): 569-573.
［4］Korbmacher H, Koch L, Eggers-Stroeder G, et al. Associations between orthopaedic disturbances and unilateral crossbite in children with asymmetry of the upper cervical spine［J］. Eur J Orthod, 2007, 29(1): 100-104.
［5］Habets LL, Bezuur JN, Naeiji M, et al. The orthopantomogram, an aid in diagnosis of temporomandibular joint problems. II. The vertical symmetry［J］. J Oral Rehabil, 1988, 15(5):465-471.
［6］Kapila S, Conley RS, Harrell WE Jr. The current status of cone beam computed tomography imaging in orthodontics［J］. Dentomaxillofac Radiol, 2011, 40(1):24-34. 
［7］Barghan S, Tetradis S, Mallya S. Application of cone beam computed tomography for assessment of the temporomandibular joints［J］. Aust Dent J, 2012, 57 (Suppl 1):109-118.
［8］Wang M, Zhang DM, Feng G, et al. Condylar volume and surface area in adults with unilateral scissors-bite assessed by cone-beam computed tomography［J］. Chinese Journal of Tissue Engineering Research, 2012, 16(13):2358-2361.(in Chinese)
王谋，张定铭，冯刚，等.锥形束CT测量单侧后牙正锁髁突的体积和表面积［J］.中国组织工程研究，2012, 16(13):2358-2361.
［9］Vitral RW, da Silva Campos MJ, Rodrigues AF, et al. Temporomandibular joint and normal occlusion: is there anything singular about it? a computed tomographic evaluation［J］. Am J Orthod Dentofacila Orthop, 2011, 140(1):18-24. 
［10］Wang MQ, Yao XF, Yan ChY, et al. An anatomic study on the relationship between occlusion symmetry and condyle symmetry［J］. Journal of Practical Stomatology, 2001, 17(2):147-150. (in Chinese)
王美青，姚秀芳，颜朝云, 等. 咬合与髁状突形态的对称性间的相关关系解剖学［J］.实用口腔医学杂志，2001,17（2）：147-150.
［11］Alexiou K, Stamatakis H, Tsiklakis K. Evaluation of the severity of temporomandibular joint osteoarthritic changes related to age using cone beam computed tomography［J］. Dentomaxillofac Radiol, 2009, 38(3):141-147.
［12］Yan CY, Wang MQ, Chen JW, et al. A study of the effect of posterior teeth with reverse cross-bite on chewing movement［J］. Chinese Journal Practical Stomatology, 2004, 20(5):558-562. (in Chinese)
颜朝云，王美青，陈金武, 等. 单侧部分后牙锁者的咀嚼运动轨迹研究［J］.实用口腔医学杂志，2004, 20（5）：558-562.
［13］Zhang YY, Fan CH, Xu T, et al. Condylar morphology and asymmetry of patients with scissors bite［J］. Chinese Journal Practical Stomatology, 2010, 3(4):217-219.(in Chinese)
张媛媛，范存辉，许涛，等. 单侧正锁患者的髁突形态特点及对称性研究［J］.中国实用口腔科杂志，2010，3（4）：217-219. 
［14］Liu BW, Wang YM,Song F, et al. Cone-beam CT evaluation of the changes in the temporomandibular joint of patients with class Ⅱdivision 1 subdivision malocclusion before and after Twinblock treatment［J］. West China Journal of Stomatology, 2013,31(6):610-614. (in Chinese)
刘博文，王艳民，宋芳,等.采用锥形束CT分析安氏Ⅱ类1分类错患者Twin-bolck矫治前后颞下颌关节的变化［J］.华西口腔医学杂志，2013,31(6):610-614.
［15］Li J, Hao YM, Li HF. Condylar morphology in adults with unilateral scissors-bite assessed by cone-beam computed tomography［J］. Journal of Tianjin Medical University, 2014,20(1):61-62. (in Chinese)
李婧，郝玉梅，李洪发. 恒牙期单侧正锁患者髁突形态锥形束CT分析［J］. 天津医科大学学报, 2014, 20（1）：61-62.
［16］Wangsrimongkol T, Manosudprasit M, Pisek P, et al. Temporomandibular joint growth adaptation and articular disc positional changes in functional orthopedic treatment: magnetic resonance imaging investigation［J］. J Med Assoc Thai, 2012, 95 (Suppl 11):S106-115.

[1]	LIU Xiao-li XU Lin WU Ai-xue WEN Cai-yun LI Ru-hua WU An-ting CHEN Dai-qian CHEN Cheng-chun. Analysis of cerebral gray matter structure in multiple sclerosis and neuromyelitis optica [J]. Acta Anatomica Sinica, 2024, 55(1): 17-24.
[2]	BAI He TENG Ye FENG Lei MENG Hai-wei1 TANG Yu-chun LIU Shu-wei. 3D hippocampal segmentation based on spatial and frequency domain features adaptive fusion and inter-class boundary region enhancement [J]. Acta Anatomica Sinica, 2024, 55(1): 73-81.
[3]	YIN Shi-qin YANG Si-yi WANG Rui-han YOU Gui-xuan YANG Ying-qiu ZHANG Lei. Distal tibiofibular syndesmosis fibular notch typing and its clinical significance based on CT [J]. Acta Anatomica Sinica, 2024, 55(1): 82-87.
[4]	YANG Yang SHI Jun LI Kun MA Yuan ZHANG Shao-jie HOU Er-fei WANG Chao-qun CHEN Jie WANG Xing LI Zhi-jun. Finite element analysis of cervical intervertebral discs after removing different ranges of uncinate processes [J]. Acta Anatomica Sinica, 2024, 55(1): 88-97.
[5]	SUN Lei WANG Xing-yu XIE Shui-hua. Risk analysis of re-fracture after percutaneous kyphoplasty in elderly patients with osteoporotic thoracolumbar compression fractures and construction of acolumnar graph prediction model#br# [J]. Acta Anatomica Sinica, 2024, 55(1): 98-104.
[6]	LIU Li-ping ZHU Meng-ni XU Hui . Effect of interleukin-6 on nucleated erythrocytes in lipopolysaccharide induced preeclampsia rats [J]. Acta Anatomica Sinica, 2023, 54(6): 722-729.
[7]	ZHAO Wei-ming LI Xiao YU Guo-ying WANG Gai-ping CHANG Cui-fang . Effect of serine protease inhibitor Kazaltype 1 on the proliferation of hepatocellular carcinoma cell and its mechanism [J]. Acta Anatomica Sinica, 2023, 54(6): 695-702.
[8]	HAN Yi CAI Li FENG Xiao . Risk analysis of bone cement leakage after percutaneous puncture vertebroplasty for osteoporotic spinal compression fractures and construction of a predictive model with column line drawings [J]. Acta Anatomica Sinica, 2023, 54(6): 710-715.
[9]	DU Da-peng SUN Yu ZHANG Min WANG Han-qin . Shear stress regulateing the phosphorylation of endothelial nitric oxide synthase Ser633 and Ser1177 in human umbilical vein endothelial cells through Pim1/Akt pathway [J]. Acta Anatomica Sinica, 2023, 54(5): 546-552.
[10]	ZHOU Chun-hui XIE Sheng-qiang WANG Jiang-ting LAN Xiao-juan ZHANG Jian-ning ZHAO Hu-lin . Application of multimodal electromagnetic navigation in endoscopic endonasal skull base anatomical measurement of fresh cadavers [J]. Acta Anatomica Sinica, 2023, 54(5): 560-566.
[11]	LIU Yan-jing SHI Yong-hong . Automatic extraction of point cloud on cartilage surface of intraoperative knee using FPFH-PointNet [J]. Acta Anatomica Sinica, 2023, 54(5): 553-559.
[12]	MI Si-rong LIU Guang-xing ZHANG Zhen-wu YU Peng-hui JU Xiao-jun RAO Li-bing LI Li . Accuracy of 3D printing skull under different CT layer thickness [J]. Acta Anatomica Sinica, 2023, 54(5): 575-581.
[13]	ZHU Qiu-liang YU Xiang-ping MA Jun CHEN Yun-yun LIN Fang RUAN Wen-bin . Adjustment of X-ray angle intraoperation based on the anatomic shape of femoral neck section [J]. Acta Anatomica Sinica, 2023, 54(5): 586-592.
[14]	LI Xiao-jun ZHANG Ya-min. Screening ferroptosis related genes influencing prognosis of colon cancer through bioinformatics analysis [J]. Acta Anatomica Sinica, 2023, 54(4): 445-452.
[15]	LIU Hai-lan MEI Yi-xuan ZHANG Yi LIU Cheng LIU Shu-wei. Classification and clinical significance of the branching patterns of the right pulmonary arteries based on the intravital CT data [J]. Acta Anatomica Sinica, 2023, 54(4): 453-459.