1,721,217 research outputs found
Existence and uniqueness of dynamic evolutions for a one-dimensional debonding model with damping
No full textIn this paper we analyse a one-dimensional debonding model when viscosity is taken into account. It is described by the weakly damped wave equation whose domain, the debonded region, grows according to a Griffith’s criterion. Firstly we prove that the equation admits a unique solution when the evolution of the debonding front is assigned. Finally we provide an existence and uniqueness result for the coupled problem given by the wave equation together with Griffith’s criterion
Ultrasonography of the temporomandibular joint: a literature review
No full textThis review summarizes knowledge on the accuracy and clinical usefulness of ultrasonography (US) for the diagnosis of temporomandibular joint (TMJ) disorders. A systematic search in the National Library of Medicine's Database was performed to identify all peer-reviewed papers in the English literature that assessed the accuracy of US with respect to magnetic resonance (MR), computerized tomography (CT), clinical assessment or autopsy specimens for the diagnosis of TMJ disk displacement, effusion and osteoarthrosis. The combined search words "ultrasonography" and "temporomandibular joint", "temporomandibular disorders", "effusion", "disk displacement", "condyle", yielded 20 papers. Most studies (N = 17) focused on detecting disk displacement, with less emphasis oil assessing joint effusion (N = 6) and osteoarthrosis (N = 7). US accuracy was 54-100% for diagnosing disk displacement, 72-95% for joint effusion and 56-93% for osteoarthrosis. US is operator-dependent. Better standardization of the technique IS required and normal parameters must be set. Standardization is also required for the taxonomic aspects of pathologies. Despite these limitations, US remains potentially useful as an alternative imaging technique for monitoring TMJ disorders, particularly the presence of intrarticular effusion
Single needle arthrocentesis plus hyaluronic acid injections in the treatment of TMJ osteoarthritis. Preliminary data in the short-term period.
No full text
And what about clinical evidence? Drs. Daniele Manfredini and Luca Guarda-Nardini's response
No full textAgreement between Research Diagnostic Criteria for Temporomandibular Disorders and Magnetic Resonance Diagnoses of Temporomandibular disc displacement in a patient population
No full textThe aim of this work was to evaluate the agreement between the clinical Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) examination and magnetic resonance (MR) findings of temporomandibular joint (TMJ) disc position abnormalities in a sample of clinically symptomatic patients, recruited from a population seeking TMD treatment. Two-hundred and thirty-two TMJs of 116 patients were evaluated to detect disc position abnormalities by means of a standardized clinical assessment according to RDC/TMD guidelines and MR performed blind by a radiologist. The overall kappa value for agreement between clinical examination according to RDC/TMD classification system and MR imaging for assessment of the disc-condyle relationship was fairly good (K = 0.63). The kappa values for the agreement between RDC/TMD and MR diagnosis of disc displacement with reduction (DDR), disc displacement without reduction (DDNR) and normal disk position were 0.69, 0.57, and 0.61, respectively. The observation that clinically predicted cases of DDR and DDNR show good to excellent agreement with MR findings, and the potential MR over-diagnosis of DDR and DDNR in the absence of clinical symptoms, support the usefulness of a standardized examination conducted by a trained investigator in the evaluation of patients with TMD
- …
