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Now showing items 11-20 of 152
Accelerated aging of adhesive-mediated fiber post-resin composite bonds: A modeling approach
(Elsevier Sci Ltd, Oxford, 2007)
Objectives: Although fiber posts luted in root canals are not directly exposed to oral fluids, water storage is considered as in vitro accelerated aging test for bonded interfaces. The aim of the study was to evaluate the ...
MAPK activation in cerebellar basket cell terminals after harmaline treatment
(New York Acad Sciences, New York, 2005)
The mitogen-activated protein kinases (MAPKs) are a family of signal transduction mediators that regulate a number of cellular activities, including cell growth and proliferation, differentiation and survival, via ...
The role of central vasopressin receptors in the modulation of autonomic cardiovascular controls: a spectral analysis study
(Amer Physiological Soc, Bethesda, 2006)
Although it has been suggested that vasopressin (VP) acts within the central nervous system to modulate autonomic cardiovascular controls, the mechanisms involved are not understood. Using nonpeptide, selective V-1a, V-1b, ...
Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium
(Korean Inst Metals Materials, Seoul, 2010)
Microstructures of two high noble experimental Au-Pt alloys were compared before and after conditioning for biocompatibility, in order to identify phases and microelements responsible for the alloys' corrosive behaviour. ...
Mast cells in periapical lesions: potential role in their pathogenesis
(Wiley-Blackwell Publishing, Inc, Malden, 2010)
Objective: The aim of this study was to qualitatively and semi-quantitatively analyze mast cells in periapical lesions. Materials and methods: Biopsy specimens of 96 periapical lesions were stained with hematoxylin-eosin, ...
Evaluation of biological debris on endodontic instruments after cleaning and sterilization procedures
(Wiley-Blackwell Publishing, Inc, Malden, 2010)
Aim To examine the presence of biological debris and the level of contamination on reusable endodontic instruments those were subjected to different cleaning methods prior to sterilization. Methodology One hundred and ...
Impairment of cardiac autonomic control in patients with amyotrophic lateral sclerosis
(Informa Healthcare, London, 2010)
The aim of this study was to investigate autonomic cardiac control in patients with amyotrophic lateral sclerosis (ALS). Fifty-five patients with sporadic ALS (28 female and 27 male; average age 56.00 +/- 10.34 years) were ...
Post space cleaning using a new nickel titanium endodontic drill combined with different cleaning regimens
(Elsevier Science Inc, New York, 2008)
This study compared the effect of two drills and five cleaning regimens on post space debridement. One hundred extracted premolars were instrumented and obturated with warm vertical compaction of gutta percha. The teeth ...
The effect of a plasma needle on bacteria in planktonic samples and on peripheral blood mesenchymal stem cells
(Iop Publishing Ltd, Bristol, 2010)
In this paper, we study the application of a plasma needle to induce necrosis in planktonic samples containing a single breed of bacteria. Two different types of bacteria, Staphylococcus aureus (ATCC 25923) and Escherichia ...
Quantification of monomer elution and carbon-carbon double bonds in dental adhesive systems using HPLC and micro-Raman spectroscopy
(Elsevier Sci Ltd, Oxford, 2009)
Objectives: To quantify monomer elution from different adhesive systems using reverse-phase high-performance liquid chromatography (HPLC) and correlate this elution with the ratio of carbon-carbon double bonds from monomer ...