نتایج جستجو برای: brushing
تعداد نتایج: 3063 فیلتر نتایج به سال:
OBJECTIVES To study the color stability of dental composite resins using a thermocycling stain challenge model accounting for the complex effects of oral environment and tooth brushing. METHODS Composite resin discs were made from Filtek Supreme Ultra (FiltekSU), TPH3 and Renamel, and subjected to thermocycling challenges in warm coffee (55 °C/pH 5.2) and a cold tea and fruit juice mixtures (...
AIM To compare the effect of brushing motion on torsional and cyclic fatigue resistance of TF Adaptive instruments after clinical use. METHODS 20 packs of TFA small sequence (SybronEndo, Orange, CA, USA) were used for this study and divided into two groups. Each instrument prepared one resin tooth, consisting in 4 canals with a complex anatomy. In group A, no brushing motion was performed. In...
Objective: The objective of this in vitro study was to evaluate the volumetric wear three CAD/CAM (computer-aided design/computer-aided manufacturing) ceramic materials. Materials and Methods: materials evaluated were CEREC Blocs (Dentsply Sirona), Initial LRF (GC) Amber Mill (HASS Corp). All samples (n=30) subjected simulated brushing (100,000 cycles). assessed by superimposing pre- post-brush...
OBJECTIVE The aim of this study was to systematically review the current literature on the clinical effects of sugar-free chewing gum on plaque indices and parameters of gingival inflammation. MATERIAL AND METHODS The MEDLINE-PubMed, Cochrane-CENTRAL and EMBASE databases were searched up to 20 April 2012 to identify any appropriate studies. Plaque indices and parameters of gingival inflammati...
OBJECTIVE Aspiration of bronchial wash fluid is commonly used in conjunction with brushing and forceps biopsy to diagnose endoscopically visible lung cancer. However, the optimal sequence of these procedures is subject to debate. The objective of this study was to determine if the order in which bronchial washing is performed relative to bronchial brushing and forceps biopsy has any effect on t...
and microhardness of Admira and Definite following acid conditioning. Half of the samples were either used as controls or brushed for 10 minutes using an electric teothbrush with srurry. The remaining specimens were st・ored in orthophosphorie acid with a pH of 1.9 for 24 hours and then half were brushed. The surface roughness of Admira and Definite was not significantly at'fected by storage und...
To allow a more rigorous understanding of animal gene regulatory networks, the Berkeley Drosophila Transcription Network Project (BDTNP) has developed a suite of methods that support quantitative, computational analysis of three-dimensional (3D) gene expression patterns with cellular resolution in early Drosophila embryos. Here we report the first components of a visualization tool, PointCloudX...
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