Microwave surface impedance anisotropy of YBa2_2Cu3_3Ox_x single crystals with different oxygen content

The linear microwave response of ultra high-quality YBa$_2$Cu$_3$O$_x$ single crystals grown in BaZrO$_3$ crucibles is measured at 9.4 GHz in rf magnetic fields parallel and perpendicular to the $ab$-plane in the temperature range 5$\leq T\leq 200$ K. Having found the analytic solution for the magnetic field distribution on the sample surface we determine both the surface impedance $Z_{ab}=R_{ab}+iX_{ab}$ in the $ab$-plane and $Z_c=R_c+iX_c$ along c-axis of the crystals. For the first time the evolution of the $Z_{ab}(T)$ and $Z_c(T)$ dependences on the same sample and in a wide range of oxygen content is obtained. For $x=6.95$ (optimum oxygen content) the temperature dependence of the imaginary part $\sigma_{c}''(T)/\sigma_{c}''(0)$ of the c-axis conductivity is found to be strikingly similar to that of $\sigma_{ab}''(T)/\sigma_{ab}''(0)$ and becomes more convex with $x$ lowering.Comment: 2 pages, 2 figures. To be published in Physica C as LT23 Proceeding

Use of occlusal digital splint for treating the patients with temporomandibular joint dysfunction and planning orthopedic treatment

Objective of the study: to develop and assess the occlusal digital splint for treating patients with temporomandibular joint dysfunction (TMJD). Material and Methods — 17 patients between the ages of 30 and 49 diagnosed with TMJD were admitted for treatment. To normalize mandibular position, an occlusal digital splint for all patients was manufactured in accordance with our original method. An intensity of pain sensations in all patients prior to, and after, the treatment was assessed by a visual analogue scale, along with the changes in the mandibular movements’ amplitude, and the signs of splint wear and stability of occlusal contacts. Results — Patients have adapted themselves well to the splint and found it convenient in use. The study results showed that it was sufficiently effective in treatment of TMJD. Reduction in pain intensity and restoration of mandibular movements’ amplitude were detected with certainty. Only in 2 (11.7%) cases, the signs of wear on the splint were found, as evidenced by the changes in pre-treatment occlusal contacts. In all other cases throughout the study, a stable occlusal contact has been encountered. Conclusion — Our results indicated that proposed occlusal digital splint may be considered as a treatment option for the patients with TMJ disorders.</jats:p

Use of occlusal digital splint for treating the patients with temporomandibular joint dysfunction and planning orthopedic treatment

Objective of the study: to develop and assess the occlusal digital splint for treating patients with temporomandibular joint dysfunction (TMJD). Material and Methods — 17 patients between the ages of 30 and 49 diagnosed with TMJD were admitted for treatment. To normalize mandibular position, an occlusal digital splint for all patients was manufactured in accordance with our original method. An intensity of pain sensations in all patients prior to, and after, the treatment was assessed by a visual analogue scale, along with the changes in the mandibular movements’ amplitude, and the signs of splint wear and stability of occlusal contacts. Results — Patients have adapted themselves well to the splint and found it convenient in use. The study results showed that it was sufficiently effective in treatment of TMJD. Reduction in pain intensity and restoration of mandibular movements’ amplitude were detected with certainty. Only in 2 (11.7%) cases, the signs of wear on the splint were found, as evidenced by the changes in pre-treatment occlusal contacts. In all other cases throughout the study, a stable occlusal contact has been encountered. Conclusion — Our results indicated that proposed occlusal digital splint may be considered as a treatment option for the patients with TMJ disorders