Effect of Remineralizing Agents on Shear Bond Strength of Orthodontic Brackets-In Vitro Study.

Orthodontic treatment can be effective only with the proper adhesion strength of the bonded elements on the teeth. The aim of the study was to analyze the influence of different remineralization products on the brackets (Evolve Low Profile Brackets 0.022 Roth prescription (DB Orthodontics Ltd.

Structure and antimicrobial activity of some new norfloxacin and ofloxacin divalent metal ion complexes.

The paper presents the studies of some new complexes of norfloxacin (Nf) and ofloxacin (Of) with Cd(II) and Hg(II). The synthesis, purification and the elemental chemical analysis of the Nf and Of compounds have been performed in order to obtain the chemical formulas. These formulas are confirmed by molecular mass determinations.

Complex compounds of Pd(II), Pt(II), Ni(II), Hg(II) and Cu(I) with 1-benzylidene-2-phenazinoylhydrazine.

Synthesis and physical-chemistry characterization of five new genuine complex compounds of 1-Benzylidine-2-phenazinoylhydrazine with Pd(II), Pt(II), Ni(II), Hg(II) and Cu(I) are presented. The chemical structure for these complexes is suggested by the elemental chemical analysis, molecular mass measurements, electric conductivities as well as by IR and UV-VIS spectra. The metal:ligand molar ratio is found 1:1, the obtained complexes belonging to the square planar geometry D4h.

Complex compounds of Pd(II), Pt(II), Cu(I) and Hg(II) with tertiary thioamides.

Synthesis and chemical and physical characterization of four new complex compounds of thiobenzpyrolidide [1-(pyrolidine)-thiobenzoyl] with Pd(II), Pt(II), Cu(I) and Hg(II) are presented. The purposed chemical structure for these complexes is suggested by the elemental chemical analysis, molecular mass measurements, electric conductivities as well as by UV-VIS and IR spectra. The obtained compounds may in principle be used as enzyme inhibitors having a pronounced insecticidal action.