background and aims. the purpose of this study was to determine efficacy of 19% elaeagnus angustifolia (ea) topical gel in the treatment of symptomatic oral lichen planus. materials and methods. patients with symptomatic oral lichen planus referring to the department of oral medicine, faculty of dentistry at shahid beheshti university of medical sciences were asked to participate in the study. ...

We investigate the condition for the bounce of circular disks which obliquely impacts on fluid surface. An experiment [ Clanet, C., Hersen, F. and Bocquet, L., Nature 427, 29 (2004) ] revealed that there exists a “magic angle” of 20◦ between a disk’s face and water surface in which condition the required speed for bounce is minimized. We perform three-dimensional simulation of the diskwater imp...

Based on the multi-level model, we have calculated light shifts for Zeeman states of hyperfine levels of cesium (Cs) 6S1/2 ground state and 6P3/2 excited state. The magic-wavelength linearly-polarized optical dipole trap (ODT) for Cs 6S1/2 |F = 4, mF = + 4ñ - 6P3/2 |F' = 5, mF = + 5ñ transition is experimentally constructed and characterized by using the laser-induced fluorescence spectra of tr...

For any h in N , a graph G = (V, E) is said to be h-magic if there exists a labeling l: E(G) to Z_{h}-{0} such that the induced vertex set labeling l^{+: V(G) to Z_{h}} defined by l^{+}(v)= Summation of l(uv)such that e=uvin in E(G) is a constant map. For a given graph G, the set of all for which G is h-magic is called the integer-magic spectrum of G and is denoted by IM(G). In this paper, the ...

SiO2-TiO2 glasses produced by aerodynamic levitation coupled to laser heating or sol-gel spray-drying were compared highlight their structural differences. Glass formation was possible melt-quenching up 10 mol% TiO2, while higher contents led devitrification. Raman spectroscopy and solid-state 17O 29Si magic-angle-spinning nuclear magnetic resonance confirmed the clear emergence of Ti-O-Si bond...

In vivo enamel fluoride (F) uptake as a function of time after a single application of a new topical APF gel, MinuteGelTM (gel A) , was compared to a control APF gel, Nupro ® (gel B). The retained F in enamel after different post-treatment intervals also was assessed. Forty orthodontic patients aged 10-16 with four premolars scheduled for extraction were divided into two subgroups according to ...

Introduction: Nowadays radiosensitive polymer gels are used as a reliable dosimetry tool for verification of 3D dose distributions. Special characteristics of these dosimeters have made them useful for verification of complex dose distributions in clinical situations. The aim of this work was to evaluate the capability of a normoxic polymer gel to determine electron dose distributions in differ...

Dental bleaching is a simple and conservative procedure for aesthetic restoration of vital and non-vital discolored teeth. Nevertheless, a number of studies have demonstrated the risk of tissue damage from the contact of these agents with the oral mucosa. In the current study, the genotoxic potential associated with exposure to dental bleaching agents was assessed by the single cell gel (comet)...

General methods for the construction of magic squares of any order have been searched for centuries. Several " standard strategies " have been found for this purpose, such as the " knight movement " , or the construction of bordered magic squares, which played an important role in the development of general methods. What we try to do here is to give a general and comprehensive approach to the c...