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    Effects of ELF-MF and Strontium Ranilate on Periodontium in Rats (Duble Blind)
    (Medwell Online, 2011) Kaya, Filiz Acun; Akdag, Mehmet Zulkuf; Kaya, Can Ayhan; Celik, Mustafa Salih; Kilinc, Nihal; Ozekinci, Selver; Saribas, Ebru
    In the present experimental study, it was investigated the periodontium of rats that exposed to Extremely Low Frequency-Magnetic Field (ELF-MY), overectomized bilaterally and treated with Strontium Ranelate (SR). The experiments were performed on 75 female Sprague-Dawley (4 months) rats. The rats were divided into five groups (n = 15). All rats were subjected to bilateral ovariectomy except those in I and III groups. Bilateral ovariectomy was performed before 4 days at the beginning of the experiments under ketamine anesthesia (100 mg kg(-1), intramuscularly) and II, IV and V groups animals were subjected to 1.5 mT ELF-MT exposure during 6 months, 4 h a day starting 5th day after the surgery. There were statistically significant differences among the all groups in the case of periodontal ligament, alveolar bone and gingiva (p<0.05). As a result of the study there were different levels of histopathologic changes occured between control and experimental changes in the case of all periodontal tissue examination. These results may hypothese that both ELF-MF and Strontium renalate have effects on periodontal tissues.
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    Effects of Extremely Low Frequency Magnetic Fields on Periodontal Tissues and Teeth in Rats
    (Medwell Online, 2011) Kaya, Filiz Acun; Akdag, Mehmet Zulkuf; Kaya, Can Ayhan; Dasdag, Suleyman; Yavuz, Izzet; Kilinc, Nihal; Dogru, Arzum Guler
    The aim of this study is to research the effects of ELF magnetic fields on periodontal tissues and teeth in rats histopathologically. The experiments were performed on 27 male Sprague-Dawley rats, aged 4 months at the beginning of the study, weighing (342.4 +/- 38.89) g and fed with standard pelleted food. The rats were divided into three groups; two experimental and one control (sham). Experimental groups were exposed to 100 and 500 mu T ELF magnetic fields during 10 months, 2 h a day, respectively. Third group was sham that were treated like experimental group except ELF magnetic fields exposure in methacrylate boxes. There was no statistical difference between the experimental groups among all tissues (p>0.05). Alveolar bone, pulp and gingiva there were statistically significant differences among the groups of sham and 1st experimental, sham and 2nd experimental (p<0.05). The statistical difference between the experimental and sham groups in the study makes us to think that ELF magnetic fields may have effects on periodontal tissues and teeth.
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    Effects of Radiofrequency Radiation by 900 MHz Mobile Phone on Periodontal Tissues and Teeth in Rats
    (Medwell Online, 2008) Kaya, Filiz Acun; Dasdag, Suleyman; Kaya, Can Ayhan; Akdag, Mehmet Zulkuf; Yavuz, Izzet; Kilinc, Nihal; Kaya, Sadullah
    The aim of this study, is to research an answer to the question of have mobile phones effects on periodontal tissues and teeth. Twenty eight Wistar Albino adult male rats (4 months) with initial average weight of 267 +/- 15 g were obtained from the Medical Science Application and Research Center, caged individually and fed with standard pelletted food (TAVAS Inc. Adana, TR). They were separated into three groups such as cage control (n = 7), sham exposed (n = 7) and experimental (n = 14) and kept on a 14/10 h light/dark schedule. The rats were confined in a Plexiglas carousel and rat heads in the carousel exposed to 900 MHz microwave exposure emitted from generator. For the study group, rats exposed to the radiation 2 h per day (7 days in a week) for 10 months. Although, there was no statistical difference determined among the groups of experimental and sham groups (p>0.05), there were numerically more individuals effected of RF radiation in the experimental group. In our study is the statistically significant difference among the groups of experimental, sham and control groups in the case of vasodilatation in periodontal ligament and alveolar bone (p<0.05). By the histopathologic evaluation abnormal changes like vasodilatation and focal bleeding areas were determined in periodontal ligament, alveolar bone, gingiva and pulpa among some individuals. These degenerations were in different levels. These findings of our study indicates that there is need to more animal, human being and epidemiologic studies including much more individuals.