Evaluation of electromagnetic field (EMF) on gingival tissue in rat

Abstract

Modem life conditions resulted in human permanent exposure to electromagnetic fields. Equipments such as printers, monitors, cell phone, television and so having an important role in human life are regarded as the generative sources of electromagnetic fields. Epidemiologic and laboratory studies on animals have demonstrated ill effects of electromagnetic fields on biologic systems. Material and Methods: 30 female rats of wistar race with the weight of 150-200 gram were selected as laboratory model at this study and divided to two experiment and control group. The experiment group was exposed to electromagnetic field with lmT (IOG) intensity and frequently and of 50Hz eight hours each day for two month. Results: this study indicated that experimental rats Gingival -epithelial tissue was found disrupted at various layers and due to the loss of collagen fibrils and the rates of necrotic cells are increase in test group (230/480) witch compared to control group (0.90/480), (P <= 0/01). Conclusions: These results suggest that EMF exposure may cause profound changes in the Gingival Tissue and decreasing in its integumentary layers .Therefore exposure to EMF may result in pathological changes that lead to dental and gingival disorders and diseases.