The ultimate mission of root canal obturation is to avoid penetration of oral fluids containing bacteria. to periapical tissues. The purpose of research is far from clinical observations reveal whether there are periapical changes in dependence on the type of coronal restoration of the teeth that were either not covered by artificial crowns. 96 intra-oral X-rays and 50 panoramic X-ray... https://parisnaturalfoodes.shop/product-category/gum-wintergreen/