نتایج جستجو برای: laser irradiation

تعداد نتایج: 241615  

ژورنال: مجله دندانپزشکی 2014
شهابی, سیما , میرزایی, منصوره , چینی‌فروش, نسیم , گرشاسب‌زاده, نازنین زینب , یاسینی, اسماعیل ,

  Background and Aims: Indirect composites are designed to overcome the shortcomings of direct composites such as polymerization shrinkage and low degree of conversion. But, good adhesion of resin cements to indirect composites is still difficult. This research was designed to assess the effect of different powers of ErYAG laser compared with sandblasting. On the micro tensil bond strength of r...

2004
N. F. Gamaleya L. M. Skivka

Among successful approaches to cancer immunotherapy, the combination of cytokines application and adoptive transfer of lymphoid effector cells represents the most promising one. To stimulate functional activity of lymphoid cells used for adoptive transfer, some physical factors may be used [1, 2]. It has been shown [1, 3, 4] that the low-energy laser irradiation possesses immunomodulating prope...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی شهید صدوقی یزد - دانشکده دندانپزشکی 1389

چکیده ندارد.

2016
Aleksandar Mitić Jelena Popović Slavoljub Živković Vladimir Mitić Marija Nikolić Stefan Dačić

Laser irradiation during root canal treatment is efficient but in order to prevent irreversible thermal damage to dentine, cementum and other periapical structures continuous water cooling is required. The aim of this study was to ultrastructurally analyze the surface of intracanal dentine and cementum at the root apex after Er:YAG laser irradiation with and without sterile saline solution irri...

Journal: :iranian endodontic journal 0
masoud parirokh department of endodontics, dental school, kerman university of medical sciences, kerman, iran mohammad jafar eghbal department of endodontics, dental research center, shaheed beheshti university of medical sciences, tehran, iran saeed asgary department of endodontics, iranian center for endodontic research, dental school, shaheed beheshti university of medical sciences, tehran, iran. jamileh ghoddusi department of endodontics, dental school, mashhad university of medical sciences, mashhad, iran sally stowe facility coordinator, electron microscope unit, australian national university, canberra, australia farshid forghani department of endodontics, dental school, kerman university of medical sciences, kerman, iran

introduction : this study was carried out to investigate the effect of 808nm diode laser irradiation on dentinal tubules of root canal wall. materials and methods: twelve single-rooted teeth were used. after cleaning and shaping with rotary instruments by the crown down technique, the smear layer was removed by alternating irrigation with edta and sodium hypochlorite. the teeth were then random...

2011
Zhanbing Yang Norihito Sakaguchi Seiichi Watanabe Masayoshi Kawai

Vacancies and interstitial atoms are primary lattice (point) defects that cause observable microstructural changes, such as the formation of dislocation loops and voids in crystalline solids. These defects' diffusion properties determine the phase stability and environmental resistibility of macroscopic materials under ambient conditions. Although in situ methods have been proposed for measurin...

Ahmad Amjadi Elham Dehghan Farideh Mottaghian Mehdi Bashiri

Introduction: We investigated the characteristic of a suitable irradiation on skin's tensional strength using design of experiments (DOE). The experiments in this research are designed in two phases and data envelopment analysis (DEA) is used for performance measurement of each phase. Material and Methods: Samples were provided from pleura as surface tissue made of collagen and elastin fibers. ...

Journal: :journal of lasers in medical sciences 0
goran batinjan university of zagreb, school of dental medicine, department of oral surgery, zagreb, croatia irina filipović zore university of zagreb, school of dental medicine, department of oral surgery, zagreb, croatia ivana rupić university of zagreb, school of dental medicine, department of oral surgery, zagreb, croatia ivona bago jurič university of zagreb, school of dental medicine, department of endodontics and restorative dentistry, zagreb, croatia zvonimir zore university clinical hospital center, sisters of mercy, department of surgical oncology, zagreb, croatia dragana gabrić pandurić university of zagreb, school of dental medicine, department of oral surgery, zagreb, croatia

introduction: the purpose of this study was to evaluate the antimicrobial photodynamic therapy (apdt) and low level laser therapy (lllt) on wound healing, pain intensity, swelling problems, halitosis and the postoperative usage of analgesics after surgical removal of lower third molars. methods: one hundred and fifty patients, randomly divided into three groups were selected (50 per each group)...

Journal: :acta medica iranica 0
mohammad reza talebi-ardakani department of periodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. maryam torshabi department of dental biomaterials, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. elahe karami department of periodontics, school of dentistry, yazd university of medical sciences, yazd, iran. elham arbabi school of dentistry, international branch, shahid beheshti university of medical sciences, tehran, iran. zeinab rezaei esfahrood department of periodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran.

the ultimate goal of the periodontal treatments is a regeneration of periodontium. recently, laser irradiations are commonly used to improve wound repair. because of many controversies about the effects of laser on soft tissue regeneration, more in vitro studies are still needed. the aim of the present in vitro study was to compare the effects of different doses of er:yag (erbium-doped:yttrium,...

Journal: :cell journal 0

introduction: this paper presents the results of a study on the effects of two differentdoses of low-power laser irradiation on healing of deep second degree burns. material and methods: 60 rats were randomly allocated to one of four groups. adeep second-degree burn was inflicted in each rat. in the control group (cg) burns remained untreated; in groups lg1 and lg2 the burns were irradiated wit...

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