Dragus Andi Ciprian, Mihai Augustin, Tanase Gabriela, Burlibasa Mihai, Cristache Corina Marilena
Oral Implantology and Gnathology Department, Dr. Dragus Clinic, 110a Stirbei Voda Street, 010109 Bucharest, Romania.
Doctoral School, "Carol Davila" University of Medicine and Pharmacy, 37 Dionisie Lupu Street, 020021 Bucharest, Romania.
Healthcare (Basel). 2023 May 7;11(9):1341. doi: 10.3390/healthcare11091341.
(1) Background: The temporomandibular joint (TMJ) is the most complex and one of the most important joints in the human body due to its essential roles in mastication, swallowing, breathing and speech. Several instruments have been used to track mandibular movements and register the characteristic parameters of the TMJ, among which condylography instruments are validated for the accurate clinical registration of the condylar path. Sagittal condylar inclination (SCI) is one of the most important parameters, together with the Bennett angle and the immediate side shift, used for articular settings in the process of oral rehabilitation. The aim of the present study was to evaluate the differences between the left and right SCI and to assess whether the differences were statistically significant for skeletal class, age, gender, dentate status, TMJ pathology or parafunctional habits. (2) Methods: One hundred and forty consecutive patients, fully dentate or partially edentulous, and with angle class I, II and II, were recruited. Their left and right SCIs were determined with an ultrasonic jaw tracking device. Each subject had to make three protrusive movements and three right and left laterotrusive movements. The software calculated the SCI from the mean of the protrusive movements. (3) Results: The mean values obtained for the right and left SCI were 34.68° (±12.44°) and 34.94° (±13.23°), respectively, with no statistically significant differences between the left and right values for gender, dentate status, TMJ disorders or parafunctional habits. Skeletal class III subjects registered lower SCI means, which were statistically significant for the left SCI. (4) Conclusions: For an optimal functionalization of prosthetic restorations and for an ideal treatment plan, the registration of both the left and right paths of the condyles and the articular disc should be taken into consideration.
(1) 背景：颞下颌关节（TMJ）是人体中最复杂且最重要的关节之一，因为它在咀嚼、吞咽、呼吸和言语中起着至关重要的作用。已经使用了多种仪器来跟踪下颌运动并记录颞下颌关节的特征参数，其中髁突描记仪被证实可用于准确临床记录髁突路径。矢状髁突倾斜度（SCI）是口腔修复过程中用于关节设置的最重要参数之一，与贝内特角和即刻侧方移位一起。本研究的目的是评估左右SCI之间的差异，并评估这些差异对于骨骼类型、年龄、性别、牙列状态、颞下颌关节病理或副功能习惯是否具有统计学意义。(2) 方法：连续招募了140名患者，他们全口牙列完整或部分缺牙，安氏分类为I类、II类和III类。使用超声下颌跟踪装置确定他们的左右SCI。每个受试者必须进行三次前伸运动以及三次左右侧方运动。软件根据前伸运动的平均值计算SCI。(3) 结果：左右SCI的平均值分别为34.68°（±12.44°）和34.94°（±13.23°），对于性别、牙列状态、颞下颌关节疾病或副功能习惯，左右值之间无统计学显著差异。骨骼III类受试者的SCI平均值较低，左侧SCI具有统计学显著性。(4) 结论：为了实现假体修复的最佳功能化和制定理想的治疗方案，应考虑记录髁突和关节盘的左右路径。
