Effect of the lateral pterygoid muscle on the anterior disc displacement with reduction of temporomandibular joint

Abstract

Abstract: PURPOSE: To analyze the effect of lateral pterygoid muscle on anterior disc displacement with reduction of temporomandibular joint (TMJ). METHODS: Lateral pterygoid muscle was loaded to simulate and biomechanically analyze the TMJ anterior disc displacement with reduction by using the established digital simulation model. RESULTS: The disc region with the highest stress concentration occurred in the lateral part of the intermediate zone; The highest stress of the condyle and articular fossa was concentred on the functional region between the disc. The tendency of displacement gradually increased from the anterior zone to the intermediate zone; from the intermediate zone to the bilaminar region while the tendency gradually reduced. The maximum TMJ displacement appeared in the joint capsule, which was the area of the attachment of the inferior side of the lateral pterygoid muscle. CONCLUSIONS: The results indicate that the function of the lateral pterygoid muscles may lead to the thinning of the articular disc or perforation.

Key words: Anterior disc displacement with reduction, Temporomandibular joint, Lateral pterygoid muscle, Biomechanics

CLC Number:

R782.6

YIN Xue-min, LI Zi-wen, LIU Xiao, SONG Meng-yang. Effect of the lateral pterygoid muscle on the anterior disc displacement with reduction of temporomandibular joint[J]. China Journal of Oral and Maxillofacial Surgery, 2015, 13(1): 7-10.

References

[1] Tanaka E, van Eijden T. Biomechanical behavior of the temporomandibular joint disc [J]. Crit Rev Oral Biol Med, 2003, 14(2): 138-150.
[2] Abe S, Kawano F, Kohge K, et al. Stress analysis in human temporomandibular joint affected by anterior disc displacement during prolonged clenching[J]. J Oral Rehabil,2013,40(4):239-246.
[3] Oliveira AT, Camilo AA, Bahia PR, et al. A novel method for intraoral access to the superior head of the human lateral pterygoid muscle [J]. Biomed Res Int, 2014, 2014: 432635.
[4] Omami G, Lurie A. Magnetic resonance imaging evaluation of discal attachment of superior head of lateral pterygoid muscle in individuals with symptomatic temporomandibular joint[J]. Oral Surg Oral Med Oral Pathol Oral Radiol, 2012, 114(5): 650-657.
[5] Imanimoghaddam M, Madani AS, Hashemi EM. The evaluation of lateral pterygoid muscle pathologic changes and insertion patterns in temporomandibular joints with or without disc displacement using magnetic resonance imaging [J]. Int J Oral Maxillofac Surg, 2013, 42(9): 1116-1120.
[6] 殷学民, 刘啸, 张君伟, 等. 关节盘前移位颞下颌关节仿真模型的建立 [J]. 口腔颌面外科杂志, 2013, 23(5): 336-340.
[7] Beek M, Koolstra JH, van Ruijven LJ, et al. Three-dimensional finite element analysis of the cartilaginous structures in the human temporomandibular joint [J]. J Dent Res, 2001, 80(10): 1913-1918.
[8] Singh M, Detamore MS. Tensile properties of the mandibular condylar cartilage [J]. J Biomech Eng, 2008, 130(1): 011009.
[9] Koolstra JH, van Eijden TM. Combined finite-element and rigid-body analysis of human jaw joint dynamics [J]. J Biomech, 2005, 38(12): 2431-2439.
[10] Aoun M, Mesnard M, Monede-Hocquard L, et al. Stress analysis of temporomandibular joint disc during maintained clenching using a viscohyperelastic finite element model [J]. J Oral Maxillofac Surg, 2014, 72(6): 1070-1077.
[11] Faulkner MG, Hatcher DC, Hay A. A three-dimensional investigation of temporomandibular joint loading [J]. J Biomech, 1987, 20(10): 997-1002.
[12] 董瑞,王旭霞,张文娟,等.前牵引颏部反作用力对颞下颌关节影响的三维有限元分析[J].中华口腔医学杂志,2013,48(12):740-744.
[13] Tanaka E, Kawai N, Tanaka M, et al. The frictional coefficient of the temporomandibular joint and its dependency on the magnitude and duration of joint loading[J]. J Dent Res,2004,83(5): 404-407.
[14] Tanaka E, del Pozo R, Tanaka M, et al. Three-dimensional finite element analysis of human temporomandibular joint with and without disc displacement during jaw opening [J]. Med Eng Phys, 2004, 26(6): 503-511.
[15] Tanaka E, Hirose M, Inubushi T, et al. Effect of hyperactivity of the lateral pterygoid muscle on the temporomandibular joint disk [J]. J Biomech Eng, 2007, 129(6): 890-897.
[16] 赖林锋, 方一鸣, 吴立军. 不可复性关节盘前移位的颞下颌关节系统生物力学研究 [J]. 中国口腔颌面外科杂志, 2013, 11(5): 382-387.
[17] Pérez del Palomar A, Doblaré M. An accurate simulation model of anteriorly displaced TMJ discs with and without reduction [J]. Med Eng Phys, 2007, 29(2): 216-226.