نتایج جستجو برای: cytotoxicity tests

تعداد نتایج: 380773  

Journal: :iranian endodontic journal 0
mohammad ali mozayeni department of endodontics, iranian center for endodontic research, dental research center, dental school, shahid beheshti university of medical sciences, tehran, iran. amin salem milani department of endodontics, dental school, tabriz university of medical sciences, tabriz, iran. laleh alim marvasti department of oral and maxillofacial pathology, dental school, shahid beheshti university of medical sciences, tehran, iran. fatemeh mashadi abbas department of oral and maxillofacial pathology, dental school, shahid beheshti university of medical sciences, tehran, iran. seyed jalil modaresi department of endodontics, dental school, yazd university of medical sciences, yazd, iran.

introduction: biocompatibility is a desirable feature for root-end filling materials. in this study we aimed to compare a new material called cold ceramic (cc) with intermediate restorative material (irm) and mineral trioxide aggregate (mta) using methyl-tetrazolium bromide (mtt) assay. materials and methods: the materials were tested in fresh and set states: (n=108). the cytotoxicity was compa...

Journal: :novelty in biomedicine 0
sahar yaghmaei 1 department of oral medicine, dental school, isfahan university of medical sciences, isfahan, yazdan shantiaee department of endodontics, dental school, shahid beheshti university of medical sciences, tehran, majid kazem department of endodontics, dental school, shahid beheshti university of medical sciences, tehran, shokoofe noori department of clinical biochemistry, school of medicine, shahid beheshti university of medical sciences, tehran, kaveh yaghmaei department of prosthodontics, dental school, kerman university of medical sciences, kerman, sadegh rostaminasab department of prosthodontics, dental school, kerman university of medical sciences, kerman,

background & objective: chlorhexidine solution is one of the widely used mouth antiseptic liquid that prevents teeth tissue damage and also has application as a root canal antiseptic. in this study, cytotoxicity of 2% chlorhexidine solution is compared with another root canal antiseptic, calcium hydroxide powder. materials and methods: cell cytotoxicity of both chemicals was assessed on culture...

Ebrahim Zabihi, Hamed Gharouee, Maryam Ehsani,

The aim of this study was to evaluate and compare the cytotoxicity induced by two resin-based sealers, 2Seal and AH Plus, in two osteoblast-like cell lines, MG-63 and Saos-2. Using sterile discs of both sealers in complete media, 24- and 72-h extracts were prepared. The extracts were exchanged with Saos-2 or MG-63 cell culture media at 75% confluence, and after 24 h incubation, cell viability t...

Journal: :Journal of dental research 1990
R G Craig C T Hanks

The cytotoxicity of a series of 29 experimental alloys and six pure metals was determined with cell culture techniques and succinic dehydrogenase histochemistry. The width of any ring of inhibition, optical density of the histochemically stained cells, and a visual ranking of the intensity of the blue color of the stained cells were compared for determination of cytotoxicity. Twenty-four of the...

Journal: :Journal of nanoscience and nanotechnology 2011
Hui Li Mengyan Li Wan Y Shih Peter I Lelkes Wei-Heng Shih

Cytotoxicity tests of zinc sulfide (ZnS) and cadmium sulfide (CdS) quantum dots (QDs) synthesized via all-aqueous process with various surface conditions were carried out with human endothelial cells (EA hy926) using two independent viability assays, i.e., by cell counting following Trypan blue staining and by measuring Alamar Blue (AB) fluorescence. The ZnS QDs with all four distinct types of ...

Journal: :Fundamental Toxicological Sciences 2023

Alternatives to animal testing are being used assess the safety of raw ingredients during process developing cosmetics. However, since cosmetic products composed a variety ingredients, product itself should also be tested. In this study, we attempted evaluate skin irritation potential lotions by modifying existing alternative test methods. To commercial in form an objective indicator, calculate...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1973
A J Girardi P Reppucci P Dierlam W Rutala J H Coggin

Fetal tissue from primiparous hamsters prevented simian virus 40 (SV40) tumorigenesis in male hamsters, whereas fetal tissue from multiparous hamsters did not. The parity status of normal (uninoculated) hamsters also influenced the cytotoxicity of their lymphoid cells against tumor cells. Lymph node cells from nonpregnant primiparous and multiparous animals were cytotoxic in microcytotoxicity t...

This study was planned to explore the capability of nanoemulsions (NEs) consisting of CapryolTM 90 and oleic acid for the delivery of rapamycin (RAP). Permeability and cytotoxicity of RAP-loaded NEs were also inspected. Pseudo-ternary phase diagrams were created with oleic acid and CapryolTM 90 (as oil phase) and four surfactants and co-surfactants at various weight ratios (Rsm). Selected NEs f...

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