A correlation study between the occlusal cant and temporomandibular joint space in patients with mandibular lateral deviation

doi:10.19439/j.sjos.2024.03.019

Abstract

Abstract: PURPOSE: To investigate the correlation between the occlusal canting and the bilateral temporomandibular joint (TMJ) space in adult and juvenile mandibular deviation patients and study the mutual influence between the occlusal canting and mandibular position, in order to provide references for clinical treatment. METHODS: CBCT data of mandibular deviation patients（20 adults,20 juveniles）were selected. Inivo5 Dental Anatomage software was used to reconstruct the structures. The occlusal cant and vertical height of the bilateral maxillary from canines to first molars were measured, and the vertical heights difference between the same teeth on both sides was calculated. The anterior, superior and posterior space of temporomandibular joint were measured respectively in both groups. Pearson correlation analysis between the occlusal canting and bilateral condylar space was carried out by using SPSS 17.0 software package. RESULTS: In the juvenile group, negative correlations were found between the occlusal cant and the superior TMJ space on the deviated side (P<0.05). Negative correlation was found between the vertical height difference of bilateral canines and the anterior TMJ space on the deviated side in the juvenile group(P<0.05). In the adult group, no significant correlation was observed among those correlated examination (P>0.05). CONCLUSONS: The occlusal canting is moderately correlated with mandibular position in the early stage of mandibular deviation patients. Early treatment of mandibular deviation is of great importance in preventing its progression into severe skeletal malocclusion, and more attention should be paid on the correction of the canted frontal occlusion plane.

Key words: Mandibular lateral deviation, Occlusal cant, CBCT, Temporomandibular joint

CLC Number:

R783.5

LI Shuang, XIAO Rong-rong, WANG Ming-feng. A correlation study between the occlusal cant and temporomandibular joint space in patients with mandibular lateral deviation[J]. Shanghai Journal of Stomatology, 2024, 33(3): 318-323.

References

[1] 郭冬梅, 常少海, 鲁颖娟. 下颌偏斜的诊断与治疗[J]. 中华口腔医学研究杂志(电子版), 2011, 5(2): 211-215.
[2] 唐汝萍,刘帅,赵震锦,等.骨性Ⅲ类下颌偏斜患者颞下颌关节形态位置及上颌骨特征的三维评估[J].上海口腔医学, 2023,32(1): 91-96.
[3] 沈刚. 偏颌与颜面不对称畸形的诊断、分类及临床意义[J]. 上海口腔医学,2021,30(1):1-6.
[4] 董艳玲. 下颌偏斜患者正中关系位与最大牙尖交错位髁突位置不调及影响因素的初步分析[D]. 重庆: 重庆医科大学, 2014.
[5] Yánez-Vico RM, Iglesias-Linares A, Torres-Lagares D, et al.Association between craniofacial asymmetry and unilateral temporomandibular joint sounds in adult patients using 3D-computed tomography[J]. Oral Dis, 2013, 19(4): 406-414.
[6] Inui M, Fushima K, Sato S.Facial asymmetry in temporomandibular joint disorders[J]. J Oral Rehabil, 1999, 26(5): 402-406.
[7] Buranastidporn B, Hisano M, Soma K.Temporomandibular joint internal derangement in mandibular asymmetry. what is the relationship?[J]. Eur J Orthod, 2006, 28(1): 83-86.
[8] 钱尧娟, 王明锋, 秦小语, 等. 不同年龄段Ⅲ类偏颌患者髁突位置和下颌骨形态的锥形束CT研究[J]. 中华口腔正畸学杂志, 2022, 29(2): 61-65.
[9] Onimaru M, Takahashi M, Shimazaki A, et al.Verification of mechanical load generated by functional orthodontic appliances[J]. J Biomech, 2020, 113: 110079.
[10] 张钧, 江莉婷, 章翊钟, 等. 下颌骨功能性偏斜对发育期大鼠髁突软骨胶原改建的影响[J]. 口腔颌面外科杂志, 2015, 25(1): 12-18.
[11] Katsavrias EG, Dibbets JM.The growth of articular eminence height during craniofacial growth period[J]. Cranio, 2001,19(1): 13-20.
[12] Katsavrias EG.Changes in articular eminence inclination during the craniofacial growth period[J]. Angle Orthod, 2002, 72(3): 258-264.
[13] Velásquez RL, Coro JC, Londño A, et al.Three-dimensional morphological characterization of malocclusions with mandibular lateral displacement using cone-beam computed tomography[J]. Cranio, 2018, 36(3): 143-155.
[14] 贾绮林, 傅民魁. 单侧后牙反早期治疗前后牙颌结构变化的研究[J]. 中华口腔医学杂志, 1995, 30(5): 280-282.
[15] Susarla SM, Dodson TB, Kaban LB.Measurement and interpretation of a maxillary occlusal cant in the frontal occlusion plane[J]. J Oral Maxillofac Surg, 2008, 66(12): 2498-2502.
[16] Kim YH, Jeon J, Rhee J, et al.Change of lip can after bimaxillary orthognathic surgery[J]. J Oral Maxillofac Surg, 2010, 68(5): 1106-1111.
[17] Lonic D, Sundoro A, Lin HH, et al.Selection of a horizontal reference occlusion plane in 3D evaluation: identifying facial asymmetry and occlusal cant in orthognathic surgery planning[J]. Sci Rep, 2017, 7(1): 2157.