Abstract：
OBJECTIVE: TMD is a multifaceted condition with various contributing factors, but the actual impact of the lateral pterygoid plate on the development of TMD remains uncertain. This research aims to investigate the relationship between anatomical variations of the lateral pterygoid plate (LPP), including its angle and proximity to the condyle, and the prevalence of temporomandibular disorders (TMD), to improve diagnostic accuracy and therapeutic approaches for TMD.
METHODS: A retrospective analysis was conducted on 189 Cone Beam Computed Tomography (CBCT) images of individuals aged 18 to 45. Inclusion criteria were based on definitive diagnoses of degenerative joint disease, excluding individuals with orthodontic treatments, injuries, or craniofacial disorders.Participants were divided into TMD and control groups using standardized DC/TMD protocols for assessment. A radiologist, blinded to the patient\'s clinical status, then analyzed the CBCT images. LPP dimensions, angles, and condyle distances were measured using OnDemand 3D Imaging Software.
RESULTS: The study found a statistically significant higher average LPP length in females compared to males (right LPP p < 0,001, left LPP p = 0,004), with no significant differences in LPP-condyle distances and angles between genders. Comparing the TMD and control groups revealed a positive correlation between lateral plate angles and TMJ disorders (p = 0,044), suggesting a potential biomechanical linkage.
CONCLUSIONS: Conclusively, the study challenges the assumption that LPP anatomical variations significantly impact TMD while underscoring a potential link between LPP angle and TMD. The novel insight into the potential role of the LPP angle in TMD provides a new direction for research and clinical practice, emphasizing the importance of considering subtle anatomical differences in the management of TMD.
METHODS: A retrospective analysis was conducted on 189 Cone Beam Computed Tomography (CBCT) images of individuals aged 18 to 45. Inclusion criteria were based on definitive diagnoses of degenerative joint disease, excluding individuals with orthodontic treatments, injuries, or craniofacial disorders.Participants were divided into TMD and control groups using standardized DC/TMD protocols for assessment. A radiologist, blinded to the patient\'s clinical status, then analyzed the CBCT images. LPP dimensions, angles, and condyle distances were measured using OnDemand 3D Imaging Software.
RESULTS: The study found a statistically significant higher average LPP length in females compared to males (right LPP p < 0,001, left LPP p = 0,004), with no significant differences in LPP-condyle distances and angles between genders. Comparing the TMD and control groups revealed a positive correlation between lateral plate angles and TMJ disorders (p = 0,044), suggesting a potential biomechanical linkage.
CONCLUSIONS: Conclusively, the study challenges the assumption that LPP anatomical variations significantly impact TMD while underscoring a potential link between LPP angle and TMD. The novel insight into the potential role of the LPP angle in TMD provides a new direction for research and clinical practice, emphasizing the importance of considering subtle anatomical differences in the management of TMD.
摘要：
目标：TMD是一种多方面的疾病，具有多种影响因素，但是翼状体外侧板对TMD发展的实际影响仍不确定。本研究旨在探讨翼状体外侧板（LPP）的解剖变异之间的关系，包括它的角度和与髁的接近度，和颞下颌关节紊乱病（TMD）的患病率，以提高TMD的诊断准确性和治疗方法。
方法：对年龄在18至45岁的189个锥形束计算机断层扫描（CBCT）图像进行了回顾性分析。纳入标准基于退行性关节病的明确诊断，不包括接受正畸治疗的个人，受伤,或者颅面疾病。使用标准化DC/TMD方案将参与者分为TMD和对照组进行评估。放射科医生,对患者的临床状况视而不见，然后分析CBCT图像。LPP尺寸,angles,使用OnDemand3D成像软件测量髁距。
结果：研究发现，与男性相比，女性的平均LPP长度具有统计学意义（右LPPp<0,001，左LPPp=0,004），性别之间LPP-髁距离和角度没有显着差异。比较TMD和对照组显示侧板角度和TMJ障碍之间的正相关（p=0.044），暗示了潜在的生物力学联系。
结论：最后，该研究挑战了LPP解剖学变异显著影响TMD的假设,同时强调了LPP角度与TMD之间的潜在联系.LPP角在TMD中的潜在作用的新见解为研究和临床实践提供了新的方向，强调在TMD的管理中考虑细微的解剖学差异的重要性。
方法：对年龄在18至45岁的189个锥形束计算机断层扫描（CBCT）图像进行了回顾性分析。纳入标准基于退行性关节病的明确诊断，不包括接受正畸治疗的个人，受伤,或者颅面疾病。使用标准化DC/TMD方案将参与者分为TMD和对照组进行评估。放射科医生,对患者的临床状况视而不见，然后分析CBCT图像。LPP尺寸,angles,使用OnDemand3D成像软件测量髁距。
结果：研究发现，与男性相比，女性的平均LPP长度具有统计学意义（右LPPp<0,001，左LPPp=0,004），性别之间LPP-髁距离和角度没有显着差异。比较TMD和对照组显示侧板角度和TMJ障碍之间的正相关（p=0.044），暗示了潜在的生物力学联系。
结论：最后，该研究挑战了LPP解剖学变异显著影响TMD的假设,同时强调了LPP角度与TMD之间的潜在联系.LPP角在TMD中的潜在作用的新见解为研究和临床实践提供了新的方向，强调在TMD的管理中考虑细微的解剖学差异的重要性。
