Positional and dimensional temporomandibular joint changes after correction of posterior crossbite in growing patients: A systematic review.
CONCLUSIONS: The current available data provide insufficient and weak evidence to form a solid and firm conclusion. There is poor, very low-quality evidence regarding the positional and dimensional effects of posterior crossbite correction on the TMJs. PMID: 29782201 [PubMed - as supplied by publisher]
ConclusionsThe absorbed dose within all radiosensitive tissues varied considerably in relation to examination type, x-ray unit, clinical settings, and patient age. The mean doses were smaller when using 2 (bilateral) 4 × 4 cm volumes than with use of one 14 × 5 cm volume.
CONCLUSIONS: RME in growing patients is able, in the short term, to modify the condyle-fossa relationship but does not change the position or shape of the articular disc. The intercondylar symmetric relationship is maintained or improved. Although the NHLBI score shows low to moderate risk of bias, the clinical relevance of these review findings is limited by Cochrane and Grades of Recommendation, Assessment, Development and Evaluation scores. PMID: 32039632 [PubMed - as supplied by publisher]
Conclusions: The CaSupp spectral-based CT could be used to evaluated the TMJ disk position and the thickness of the posterior band. PMID: 32074669 [PubMed - in process]
This article introduces a modified surgical approach combining condylotomy with posterior disc attachment release for the resection of large non-malignant masses located in the infratemporal fossa and involving the skull base. This retrospective study included 14 patients treated at Shanghai Ninth People ’s Hospital, Shanghai Jiao Tong University between January 2010 and December 2016. Clinical evaluations (visual analogue scale (VAS) for pain, maximum inter-incisal opening (MIO), and complications) and radiological findings (magnetic resonance imaging (MRI) and computed tomography (CT)) were coll ected pre- and postoperatively.
This retrospective study included eight patients with chronic and habitual dislocations of the temporomandibular joint (TMJ), who were admitted to our institution, between 2006 and 2018. Radiographic examination involved three-dimensional computed tomography to ascertain the height of the articular eminence. Preoperative assessment included a thorough recording of history, physical examination, and assessment of the type of dislocation; we also recorded the patients ’ age, sex, and frequency of the recurrences of the dislocations.
This study was performed to develop a new rat model of reduced masticatory activity in order to assess the effect of this reduction on the morphology of the temporomandibular joint (TMJ) over time. Female rats were used, and ovariectomy was performed to simulate aged/postmenopausal status. Twenty-four SD rats aged 6 weeks were divided into four groups: ovariectomy/sham procedure (Ov/S); ovariectomy/reduced masticatory activity (Ov/RMA); non-Ov/S (NO/S); and non-Ov/RMA (NO/RMA). The RMA procedure involved grinding down the edges of the upper and mandibular incisors by about 3 mm and supplying the rats with a powdered diet. ...
This study sought to characterize the intra- and extra-articular features of naturally occurring TMJ ankylosis in cats. TMJs from client-owned cats (n = 5) that underwent bilateral TMJ gap arthroplasty were examined and compared with TMJs from healthy, age-matched feline cadavers (n = 2) by cone-beam computed tomography (CBCT), micro-computed tomography (μCT) and histologically. Features of bilateral intra- and extra-articular ankylosis compounded by degenerative joint lesions were identified radiographically and histologically in all affected cats. Features of TMJ ‘true’ ankylosis includ...
Conclusions: Herniation of TMJ into the EAC is a rare condition, but can be encountered in the clinic at any time. This literature review could be helpful in the diagnosis and treatment of TMJ herniation into the EAC.
Introduction An 18 year old girl with a history of temporomandibular joint ankylosis since the age of 4, was diagnosed with Myositis Ossificans. She had no history of trauma or infection of the temporomandibular joint. A CT scan showed ossification from the medial aspect of the Ramus to the pterygoid muscle. Her mouth opening was 3mm.
Conclusion: Prominent anterior canal bulges are formed by posterior temporomandibular joints, not thicker bone. The scutum has asymmetric distances to various portions of the ossicles with the incus short process sometimes as close as 0.2 mm, placing it at risk of injury.