Browsing by Author "Ozkan, H."

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A Different Approach in Removal of Proximal Wharton’s Duct Stone: Case Report
(Yuzuncu Yil Universitesi Tip Fakultesi, 2017) Turan, M.; Ozkan, H.; Garca, M.F.; Cankaya, H.; Avcı, K.; Bozan, N.; Kıroglu, A.F.
We aimed to approach with a different surgical technique to stone excision far from orifice in Wharton duct. A 51-year-old female patient admitted to our clinic with the complaints of pain and swelling at the right of mouth floor and especially swelling during nutrition at the inferior of right jaw. In the intra oral examination; a large, sensitive with palpation, sides are erythematous solid mass in the right submandibular canal region was detected. In the ultrasonography examination, left submandibular gland was found significantly heterogeneous and 1 cm in diameter hyperechoic posterior shade showing stone at approximately 10 mm distance to Wharton duct was visualized. Sialolithiasis treatment varies according to the localization of the stone, duration of the symptoms, frequency of repetition and size of the stone. Either conservative or surgical techniques can be used for treatment. Surgically, either intraoral or extraoral approaches can be used. In our case, after removing the stone from the distal part of Wharton duct, original orifice of the duct was deactivated and distal part of the duct was marsupialised to mouth floor. Saliva discharge was seen from the new orifice inside the mouth at the postoperative 3rd week of the case. More clinical studies with increased numbers of cases are needed for accurate results of the treatment method. © 2017, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Trap Distribution in Tlins2 Layered Crystals From Thermally Stimulated Current Measurements
(Korean Physical Soc, 2008) Isik, M.; Goksen, K.; Gasanly, N. M.; Ozkan, H.
We have carried out thermally stimulated current (TSC) measurements with the current flowing along the layer on as-grown TlInS2 layered single crystals in the low temperature range 10 - 110 K with different heating rates of 0.1 - 1.5 K/s. Experimental evidence was found for the presence of two shallow electron trapping centers with activation energies of 12 and 14 meV. Their capture cross sections have been determined as 2.2 x 10(-23) and 7.1 x 10(-25) cm(2), respectively. It was concluded that retrapping in these centers is negligible, which was confirmed by the good agreement between the experimental results and the theoretical predictions of the model that assumed slow retrapping. An exponential distribution of electron traps was revealed from the analysis of the TSC data obtained at different light excitation temperatures. This experimental technique provided a value of 27 meV/decade for the trap distribution. The parameters of the monoclinic unit cell were determined by studying the X-ray powder diffraction.