I read with great interest the recent article by Antoun Nader and colleagues (1) and a similar technique present in another article (2). From an anatomical point, insertion into the lateral pterygoid muscle is on the lateral pterygoid plate and the origin is the mandible. From the computed tomography image (3), we can understand that the lateral pterygoid muscle can be detected by ultrasound be...

Twenty-eight monkeys (Macaca mulatto) were monitored during 84 electromyographic recording sessions to study the function of certain masticatory and facial muscles during mastication. During the period of closing muscle function, strong activity was noted in the temporal and masseter musculature and in the superior head of the lateral pterygoid muscle. The relative participation of the elevator...

Marcus-gunn phenomenon is a congenital and sometimes hereditary anomaly, in which a ptotic eyelid retracts momentarily when the mouth is open, or the jaw is moved. These associated movements attributed to abnormal connections between the central mechanisms innervating the pterygoid and elevator muscles. Sometimes this anomaly is associated with dual,s retraction syndrome, duplex kindneys and ur...

The purpose of this study was to investigate the influence of anteroposterior postural change on electromyography (EMG) activity in the lateral pterygoid muscle. Subjects consisted of 7 patients attending this hospital for close examination. The inferior heads of the lateral pterygoid and masseter muscles were chosen as evaluation sites. For the EMG recordings, the test movement was opening and...

PURPOSE To examine the separation of the pterygomaxillary region at the posterior nasal spine level after Le Fort I osteotomy in Class III patients. PATIENTS AND METHODS The study group consisted of 37 Japanese patients with mandibular prognathism and asymmetry, with maxillary retrognathism or asymmetry. A total of 74 sides were examined. Le Fort I osteotomy was performed without a pterygoid ...

Background and Aim: Temporomandibular disorder (TMD) is a multifactorial problem caused by many reasons. There is still controversy about the effect of different types of occlusal disorder on TMD. This study was designed to determine the effects of centric and assisted and unassisted non-working interferences on TMD. Materials and Methods: In this cross-sectional study, 100 dental students, in...

The cartilago transiliens is a fibrocartilaginous structure within the jaw muscles of crocodylians. The cartilago transiliens slides between the pterygoid buttress and coronoid region of the lower jaw and connects two muscles historically identified as m. pseudotemporalis superficialis and m. intramandibularis. However, the position of cartilago transiliens, and its anatomical similarities to t...

The goal of the present article is to compare neuromuscular activation patterns among medial-lateral, superior-inferior, and rotational positions palms for 14 selective muscles during push-up exercise. Muscle activity kinematics information fifteen males (68.35 ± 7.18 kg, 175 3.40 cm, 24.50 7.50 years) were recorded by Myon Electromyographic (EMG) system Vicon motion capture, respectively. EMG ...