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    Wyświetlanie 1-3 z 3
    Tytuł:
    Multidisciplinary treatment of radicular cyst caused by delayed trauma in the maxillary central teeth – case report
    Autorzy:
    Unlu, N.A.
    Altan, A.
    Altan, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2098548.pdf
    Data publikacji:
    2021
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    radicular cyst
    treatment
    jaw bone
    root region
    incisor
    apical resection
    Opis:
    Objective. The aim of this case report is to present a multidisciplinary treatment administered to a patient with a cystic lesion in the jawbone, in the root region of the incisors, caused by trauma. The report also emphasizes the effect of accurate diagnosis and treatment planning on the prognosis of cyst-associated teeth in the presence of large cystic lesions. Case report. A 12-year-old male patient with the maxillary central teeth broken as a result of trauma experienced 3 years ago. In radiographic examination, a round and wide radiolucent area with smooth and distinct borders was observed which included the root of tooth number 11. As a result of the clinical and radiographic examination, it was decided to resect the cyst after consultation with oral and maxillofacial surgery specialists. According to the one-year follow-up results, no pain was felt in the area of the tooth.
    Źródło:
    Journal of Pre-Clinical and Clinical Research; 2021, 15, 3; 148-150
    1898-2395
    Pojawia się w:
    Journal of Pre-Clinical and Clinical Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nanomechanical properties of different dental restorative materials
    Autorzy:
    Altan, H.
    Bilgic, F.
    Arslanoglu, Z.
    Kale, E.
    Köroğlu Kale, A.
    Altan, A.
    Sahin, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/1068227.pdf
    Data publikacji:
    2016-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    62.20.-x
    62.20.Qp
    Opis:
    The aim of this study is to determine the hardness and roughness of glass ionomer cement, glass carbomer, and compomer by nanoindentation. Three different dental restorative materials: glass ionomer cement, glass carbomer cement, and compomer were used. Disc specimens (10 mm × 1 mm) were prepared from each material using teflon mold. All specimens were light cured according to the manufacturer's instructions. The specimens were then mounted in polyacrilic resin. After grinding and polishing the specimens were stored in distilled water at 37°C for 1 day. The specimens were investigated using nanoindenter. The highest nanohardness was measured for glass ionomer cement and the lowest for glass carbomer. Regarding roughness, glass ionomer cement and compomer showed the highest mean values. Glass ionomer cement and compomer exhibited similar nanomechanical properties. Glass carbomer had superior ability to be polished up.
    Źródło:
    Acta Physica Polonica A; 2016, 130, 1; 394-396
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nanomechanical comparison of commonly used dental crown cements to a newly developed one
    Autorzy:
    Kale, E.
    Arslanoğlu, Z.
    Altan, H.
    Bılgıç, F.
    Tuzlali, M.
    Köroğlu, A.
    Özarslan, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1054940.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    62.20.-x
    62.20.Qp
    62.20.de
    Opis:
    The main goal of nanoindentation tests is to obtain elastic modulus and hardness of the specimen material from load-displacement measurements. With this study, it was aimed to establish a quantitative relationship between the nanomechanical properties of commonly used dental cements in comparison to a newly developed crown cement and to predict its performance potential. Nanomechanical properties of polycarboxylate cement (PCC), glass-ionomer cement (GIC), dual-cure self-adhesive cement (SAC) and a newly developed glass-carbomer cement (GCC) were investigated by nanoindentation tests. All samples were fabricated according to their respective manufacturer's instructions. Available damage on the surface due to manipulation was removed by grinding with 1200, 2400 and 4000 grit sandpaper, and then polishing on 6, 3, and 1 μm diamond-lap-wheel was performed. Nano-mechanical measurements were done using nanoindenter machine with resolution less than 1 nN and displacement resolution of 0.04 nm. Berkovich diamond indenter tip was used for the nanoindentation tests. For each indentation, a set of nanoindentation tests at least on 6 different locations per specimen surface were performed to obtain more representative mean results. Indentation test load-displacement curves were analysed using Oliver-Pharr method, and one-way ANOVA or Kruskal-Wallis test, following Kolmogorov-Smirnov and Shapiro-Wilk, was used to compare the results. Nanohardness (H_{nano}) values were 0.52± 0.25, 0.45± 0.18, 1.03± 0.82 and 0.43± 0.18 GPa for GIC, GCC, PCC, and SAC, respectively. Reduced elastic modulus (E_{r}) values were 9.51± 6.17, 11.77± 5.04, 27.37± 20.61, 10.33± 5.08 GPa for GIC, GCC, PCC, and SAC, respectively. There was no statistical difference between the tested materials. PCC was the hardest, and GIC was the least hard material, whereas the newly developed GCC was the second, in terms of H_{nano}, before SAC. PCC also had the highest E_{r} mean, compared to the other dental crown cements, suggesting lower elastic properties. SAC was more elastic than GCC and less elastic than GIC. GCC had the second highest E_{r}, standing closer to SAC and GIC. Within the limitations of the current study, it can be concluded that the newly developed glass-carbomer cement is comparable to the other tested commonly used dental crown cements, regarding H_{nano} and E_{r}.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 954-958
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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