نتایج جستجو برای: dentin desensitizing agents
تعداد نتایج: 369194 فیلتر نتایج به سال:
UNLABELLED Fluorosis is one of the factors which bring about mineralisation changes in a dentinal structure leading to dentin. The purpose of the present study was to compare and evaluate the dentinal tubular changes in fluorosed and nonfluorosed teeth subsequent to the application of citric acid,strontium acetate based sodium fluoride (SAF) using scanning electron microscopy (SEM). Dentin spec...
Effect of saliva and blood contamination on shear bond strength of cured dentin adhesives Dr. E. Yassini* - Dr. E. Shidoush** *- Professor of Operative Dentistry Dept. - Faculty of Dentistry - Tehran University of Medical Sciences. ** - Dentist. Background and Aim: Achieving good moisture control is a common problem encountered in restorative dentistry, especially after applying and curing dent...
Effect of salivary contamination on shear bond strength of three different dentin adhesive systems Dr. H. Kermanshah* - Dr. H. Haj miragha** - Dr. SH. Gatoeizadeh*** *- Assistant Professor of Operative Dentistry Dept. - Faculty of Dentistry – Tehran University / Medical Sciences. **- Assistant Professor of Fixed Prosthodontics Dept. & Dental Research Center - Faculty of Dentistry – Tehran Unive...
We report a color tunable display consisting of two passive-matrix micro-LED array chips. The device has combined vertically stacked blue and green passive-matrix LED array chips sandwiched by a transparent bonding material. We demonstrate that vertically stacked blue and green micro-pixels are independently controllable with operation of four color modes. Moreover, the color of each pixel is t...
Dentin can be described as a biological composite with collagen matrix embedded with nanosized hydroxyapatite mineral crystallites. Matrix metalloproteinases (MMPs) and cysteine cathepsins are families of endopeptidases. Enzymes of both families are present in dentin and collectively capable of degrading virtually all extracellular matrix components. This review describes these enzymes and thei...
OBJECTIVES Published transmission electron microscopy analysis of in vitro resin-dentin bonds shows that, after 44 months, almost 70% of collagen fibrils from the hybrid layer disappear. Matrix metalloproteinases (MMPs) play an important role in that process and are thought to be the main factor responsible for the solubilization of dentin collagen. Therefore, this study aimed to evaluate the i...
OBJECTIVE The aim of this study was to assess the bond strength of indirect composite restorations cemented with a resin-based cement associated with etch-and-rinse and self-etching primer adhesive systems to dentin treated or not with a bioactive material. MATERIALS AND METHOD Twenty bovine incisor crowns had the buccal enamel removed and the dentin ground flat. The teeth were assigned to 4 ...
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