Kirkuk Journal of Science

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.