The work demonstrates the importance of calculation of zenith angel of the primer magnetic field of the transmitter-station through knowledge of the coordinates of both transmitter-station and measure- area due to the use of special equations. They h
ave great importance for electromagnetically field measurements. The direction angels have been calculated for most famous transmitter-stations in some different areas of SYRIA (DRAA and SUWEDA). According to the results, these angels differed with the variation of coordinates of the transmitter in the same location, and some field measurements have confirmed this method.
Bone neoformation is primary importance for the success of maxillofacial
surgical treatments. and there are various methods to reach this aim as the physical methods including the
usage of electrical , electromagnetic & static magnetic field due to
its effect on bone.
Aim of study to investigate, the effect of a static magnetic field on the density of bone and osteoblast ,
without bone graft, With auto graft and With hidroxiapatite.
