background and aims. the most common method for alginate impression disinfection is spraying it by disinfecting agents, but some studies have shown that these impressions can be immersed, too. the aim of this study was to evaluate the dimensional stability of alginate impressions following disinfecting by spray and immersion methods. materials and methods. four common disinfecting agents (sodiu...

introduction: formocresol is widely used in primary teeth pulpotomies; however it is known to have several side effects. the purpose of this study was to assess pulpal changes of primary teeth pulps after pulpotomy with sodium hypochlorite and formocresol. materials and methods: in this randomized clinical trial, 22 teeth were selected. these teeth were randomly divided into 2 groups (formocres...

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In the title salt, Na(+)·C(7)H(7)ClNO(2)S(-)·1.5H(2)O, one of the water mol-ecules lies on a twofold axis. The sodium ion shows an O(6) octa-hedral coordination defined by three water O atoms and three sulfonyl O atoms derived from three different anions. The S-N distance of 1.5898 (19) Å is consistent with an S=N double bond. The crystal structure is stabilized by N-H⋯O and O-H⋯Cl hydrogen bonds.

The activities are reported of sodium salts of several n-alkylsalicylic acids against Staphylococcus aureus, Pseudomonas aeruginosa, Mycobacterium phlei, and Candida albicans. The acids had alkyl substituents of 1 to 18 carbon atoms in the 3, 4, or 5 positions relative to the carboxyl group of salicylic acid. Generally, the antimicrobial properties were typical of anionic surface-active agents ...

In the title compound, Na(+)·C(6)H(4)BrClNO(2)S(-)·1.5H(2)O, one water mol-ecule has crystallographically imposed twofold symmetry. The Na(+) cation shows a pseudo-octa-hedral coordination provided by three O atoms of water mol-ecules and three sulfonyl O atoms of different N-bromo-2-chloro-benzene-sulfonamidate anions. The S-N distance of 1.579 (6) Å is consistent with an S=N double-bond chara...

background: sodium arsenite (naaso2) has potent cytotoxic activity in human cancer cells. oxidative stress has been suggested as a mechanism for arsenic-induced carcinogenesis. the purpose of the present study was to evaluate the alteration of mrna levels of catalase ( cat ) and superoxide dismutase 2 ( sod2 ) in mcf-7 and jurkat cells after exposure to naaso 2 . methods: methylthiazol tetrazol...