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    ELF Electromagnetic Field and Strontium Ranilate Influences on the Trace Element Content of Rat Teeth
    (Medwell Online, 2009) Kaya, Sadullah; Akdag, Mehmet Zulkuf; Yavuz, Izzet; Celik, Mustafa Salih; Adiguzel, Oezkan; Tumen, Emin Caner; Kaya, Filiz Acun
    Exposure to Extremely Low Frequency (ELF) Electromagnetic Field (EMF) emanating from the generation, distribution and utilization of electricity. The major debate in recent years has focused on the possibility that exposure to EMF may result some health consequences such as differentiation on bone constitute. In this study, the effect of ELF-EMFs and strontium ranelate on teeth constitute amount of mineral were investigated in rats. Seventy-five four month old adult female Sprague-Dawley rats were randomly divided into 5 different groups (n = 15). After all applications, some mineral levels such as: Ca, Mg and Zn in rat teeths were determined with Atomic Absorbtion Spectrophotometry (AAS) and the phosphorus content of teeth was determined by Ultraviolet Spectrophotometer (UVS). It was determined that the levels of Ca and P were not statistically different in comparison to Cg-Cnt and between groups (p>0.05). However, it was observed that the levels of Zn significantly alterations between some groups (p<0.05). The levels of Mg in ELF-EMF+OVX, ELF-EMF and OVX groups decreased significantly in comparison to Cg-Cnt group (p<0.05). As a result, it can be suggested that mineral amount of rat teeth can change after ovariectomy and ELF-EMF exposure, also strontium ranelate treatments can't increase mineral amount of teeth.
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    Öğe
    Evaluation of shaping ability of different glide path instruments: a micro-computed tomography study
    (Bmc, 2023) Ozata, Merve Yeniceri; Falakaloglu, Seda; Keles, Ali; Adiguzel, Oezkan; Gundogar, Mustafa
    Background This study aimed to compare the shaping ability of different instruments, TruNatomy Glider (TRN-G), WaveOne Gold Glider (WOG-G), and ProGlider (Pro-G) using micro-computed tomography (micro-CT). Methods The mesial canals of 27 mandibular molars with two separate mesial canals and moderate curvature were included in this study [n = 27 mesiobuccal (MB) and mesiolingual (ML) root canal]. According to the manufacturer's instructions, the glide path was created with TRN-G, WOG-G, and Pro-G glide path instruments (n = 9 MB and ML root canal in each group). Micro-CT scanning was performed before and after preparation. Mesiodistal (MD) and buccolingual (BL) transportation and the centering ratio were measured at three levels within the canal (3, 5 and 7 mm). A three-way robust ANOVA was used to compare the parameters. Results TRN-G showed significantly greater transportation in the MD direction than the other instruments throughout the root canal (overall root canal) (p < 0.05). The best centering ability in the BL direction was shown by the WOG-G, regardless of level within the canal and canal distinction (MB vs. ML) (p < 0.05). There was no significant difference between groups according to the level within the canal and canal parameters (p > 0.05). Whether the root canal was MB or ML did not affect centering or transportation (p > 0.05). Conclusions Glide path instruments can be used to shape moderately curved canals with minimal apical transportation and better centering ability. All three tested glide path files can used safely before the shaping file.