Kirkuk University Journal-Scientific Studies

The aim of this study was to determine, by a systematic review, the radiation doses of different dental x-ray devices, their particular effects, and the cumulative results of various studies done with various dosimeters. Google scholar was searched from 2014 to 2021 using the following keywords: radiation dose, dosimeters in dentistry, types of dosimeters, Cone beam computed tomography (CBCT) radiation. The references of selected papers were also analyzed. Articles were chosen that fit the criterion for utilizing dosimeters in dentistry applications. This review was separated into four sections: (1) biological impacts of radiation, (2) dosimeter characteristics, (3) dosimeter kinds, and (4) the findings of numerous investigations employing various dosimeters. According to a recent assessment of dosimetry based on different investigations conducted with dosimeters, the effective dosage supplied has decreased since the introduction of radiography techniques. As a result, radiological method selection is critical in dental dosage administration.

The Fe(II), Co(II), Ni(II) Cu(II), Zn(II) and Hg(II) complexes were prepared by reacting their salts with the derived Schiff base ligands from condensing vanillin and o-phenylenediamine with a ratio (1:1), (2:1) respectively. Ligands and their complexes were distinguished using analytical, physical and spectroscopic methods. The elemental analysis values show that stoichiometry to be 1:1 [M:L]. Molar conductivity measurements detect that the complexes are non-electrolytic .From the information obtained through electronic measurements, magnetic sensitivity   .The square planar geometry around of Ni(II) and Cu(II), and tetrahedral geometry around of the other metals . The prepared complexes showed different activity towards inhibiting bacterial growth for E. coli k.pneomonia