{"title":"The role of the lateral pterygoid muscle in temporomandibular disorders","authors":"Vitalie Pantea, Felicia Tabara, Mariana Ceban, Veronica Burduja, Lilian Nistor, Olga Ursu","doi":"10.52645/mjhs.2023.3.09","DOIUrl":null,"url":null,"abstract":"Introduction. The clinical concept that would argue that the activity of the lateral pterygoid muscle, being disturbed, would play an important role as an etiological factor in temporomandibular joint dysfunctions is still widely accepted, being also a decisive factor in the correct choice of the treatment plan. However, because of the fact that very few research and clear evidence were conducted and presented to support completely that concept, it continues to remain a very controversial one. Material and methods. For this literature review were considered and studied scientific articles published between 2000 and 2023, in the following electronic databases: PubMed, MEDLINE, Google Scholar, BIR Publications, ScienceDirect. Research methods – analysis, synthesis, systematization, and description. Results. Patients presenting temporomandibular joint dysfunction complain about pain in the temporomandibular joint or/and in masticatory muscles, limitation and sounds during mandibular activity. Temporomandibular dysfunction is a non-specific collective term, used to describe a heterogeneous group of pathological conditions located in the territory of the stomatognathic system. These are considered musculoskeletal conditions that cause pain while performing the function (mastication, speech, swallowing), with increased sensitivity in the masticatory muscles and/or the temporomandibular joint, with possible limitations of the range of motion, the appearance of joint noises and otological symptoms. One of the theories claims that in temporomandibular dysfunction, the lateral pterygoid muscle becomes hyperactive, hypoactive or that there is a lack of coordination between the superior and inferior branches of the muscle, or that there is a disturbance during the performance of the role of the muscle to control and stabilize the temporomandibular joint. However, the in-depth study of the specialized literature indicates that no scientific evidence is yet available that the function of the lateral pterygoid muscles in temporomandibular dysfunction is somehow disturbed. Moreover, the muscle’s role during the execution of its normal function has also been questioned and remains a matter of controversy. Conclusions. The lateral pterygoid muscle obviously plays an important role in the development of temporomandibular dysfunction through the prism of its anatomical and functional particularities, referring to the superior fascicle responsible for the correct anatomical maintenance of the articular disc during function.","PeriodicalId":500832,"journal":{"name":"Moldovan Journal of Health Sciences","volume":"91 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Moldovan Journal of Health Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.52645/mjhs.2023.3.09","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction. The clinical concept that would argue that the activity of the lateral pterygoid muscle, being disturbed, would play an important role as an etiological factor in temporomandibular joint dysfunctions is still widely accepted, being also a decisive factor in the correct choice of the treatment plan. However, because of the fact that very few research and clear evidence were conducted and presented to support completely that concept, it continues to remain a very controversial one. Material and methods. For this literature review were considered and studied scientific articles published between 2000 and 2023, in the following electronic databases: PubMed, MEDLINE, Google Scholar, BIR Publications, ScienceDirect. Research methods – analysis, synthesis, systematization, and description. Results. Patients presenting temporomandibular joint dysfunction complain about pain in the temporomandibular joint or/and in masticatory muscles, limitation and sounds during mandibular activity. Temporomandibular dysfunction is a non-specific collective term, used to describe a heterogeneous group of pathological conditions located in the territory of the stomatognathic system. These are considered musculoskeletal conditions that cause pain while performing the function (mastication, speech, swallowing), with increased sensitivity in the masticatory muscles and/or the temporomandibular joint, with possible limitations of the range of motion, the appearance of joint noises and otological symptoms. One of the theories claims that in temporomandibular dysfunction, the lateral pterygoid muscle becomes hyperactive, hypoactive or that there is a lack of coordination between the superior and inferior branches of the muscle, or that there is a disturbance during the performance of the role of the muscle to control and stabilize the temporomandibular joint. However, the in-depth study of the specialized literature indicates that no scientific evidence is yet available that the function of the lateral pterygoid muscles in temporomandibular dysfunction is somehow disturbed. Moreover, the muscle’s role during the execution of its normal function has also been questioned and remains a matter of controversy. Conclusions. The lateral pterygoid muscle obviously plays an important role in the development of temporomandibular dysfunction through the prism of its anatomical and functional particularities, referring to the superior fascicle responsible for the correct anatomical maintenance of the articular disc during function.
介绍。临床上认为翼侧肌活动受到干扰是颞下颌关节功能障碍的重要病因,这一观点至今仍被广泛接受,也是正确选择治疗方案的决定性因素。然而,由于很少有研究和明确的证据完全支持这一概念,因此它仍然是一个非常有争议的概念。材料和方法。本文献综述考虑并研究了2000年至2023年间发表的科学文章,这些文章来自以下电子数据库:PubMed, MEDLINE, Google Scholar, BIR Publications, ScienceDirect。研究方法——分析、综合、系统化和描述。结果。颞下颌关节功能障碍的患者主诉为颞下颌关节或/或咀嚼肌疼痛、下颌活动受限和发出声音。颞下颌功能障碍是一个非特异性的集体术语,用于描述位于口颌系统领域的异质组病理条件。这些被认为是肌肉骨骼疾病,在执行功能(咀嚼、说话、吞咽)时引起疼痛,伴有咀嚼肌和/或颞下颌关节的敏感性增加,可能伴有活动范围受限、关节噪音和耳科症状的出现。其中一种理论认为,在颞下颌关节功能障碍中,翼状外侧肌变得过度活跃、不活跃或肌肉上下分支之间缺乏协调,或肌肉控制和稳定颞下颌关节的作用在发挥过程中受到干扰。然而,通过对专业文献的深入研究,目前还没有科学证据表明颞下颌功能障碍中翼侧肌的功能受到某种程度的干扰。此外,肌肉在执行其正常功能时的作用也受到质疑,仍然是一个有争议的问题。结论。从解剖和功能的特殊性来看,翼侧肌在颞下颌功能障碍的发展中明显起着重要的作用,指的是在功能过程中负责关节盘正确解剖维持的上肌束。