In the clinical examination, 25 individuals were under orthodontic treatment, speech therapy or otorhinolaryngology treatment; 35 individuals had absence of maxillary and mandibular anterior teeth or the first permanent molars (upper and lower), 18 individuals experienced displacement of articular discs
, 18 individuals presented no temporomandibular dysfunction, being considered healthy subjects, and 33 individuals had a confirmed diagnosis of muscular temporomandibular dysfunction and were included in this study.
10) These include the articular disc
, volar and dorsal radio-ulnar ligaments, extensor carpi ulnaris subsheath, and the ulnocarpal ligaments.
It was also observed that some muscle fibers of the masseter temporal and lateral pterygoid muscles entered and dispersed inside the articular disc
in which the elastic fibers were dense.
11) Further, thinning of the articular disc
has been shown to accompany increased ulnar variance, increasing risk of TFCC wear and perforation.
23) Leaning on the jaw and chin during lectures can cause straining of the ligament that attaches the articular disc
to the head of the condyle.
The higher was the simulated occlusal interference the stronger vertical forces (in axis Y) affected right articular disc
and the slighter vertical forces acted on left articular disc
; forces in axis X decreased in both articular discs
while lateral forces in axis Z increased almost twice in right and decreased almost three times in left articular disc
By doing this, the blocks with the mandibular fossa, the articular disc
, the mandible condyle, the articular capsule and posterior third of the lateral pterygoid muscle were obtained, with both the heads.
In the 1980s and 1990s, aggressive, invasive procedures were popular, including implants that replaced the articular disc
Separating these two bones from direct articulation is the articular disc
When retrieving documentation from a CD-ROM tax service in printed or electronic form, note the copyright restrictions reproducing its contents under the license to use a articular disc
2 Disc displacement can be defined as abnormal position of articular disc
against condyle and articular eminence of TMJ.
The TFCC is comprised of several structures including a biconcave articular disc
that is contiguous with the articular surface of the distal radius.