نتایج جستجو برای: modified glass ionomer

تعداد نتایج: 320097  

Journal: :journal of dentistry, tehran university of medical sciences 0
sumitha upadhyay specialist resident, department of pedodontics & preventive dentistry, mangalore, india. arathi rao ramya shenoy

to investigate and compare the amount of fluoride release of conventional, resin modified and nanofilled resin modified glass ionomer cements.tablets of glass-ionomer cements were immersed in deionized water and incubated at 37°c. after 1, 2, 7, 15 and 30 days, fluoride ion was measured under normal atmospheric conditions by fluoride ion selective electrode. buffer (tisab ii) was used to decomp...

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Journal: :journal of dental materials and techniques 0
mostafa sadeghi professor, department of operative dentistry, school of dentistry, rafsanjan university of medical sciences, rafsanjan, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی رفسنجان (rafsanjan university of medical sciences) mohammad atafat assistant professor, department of operative dentistry, school of dentistry, rafsanjan university of medical sciences, rafsanjan, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی رفسنجان (rafsanjan university of medical sciences) mehdi abbasi assistant professor, department of operative dentistry, school of dentistry, rafsanjan university of medical sciences, rafsanjan, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی رفسنجان (rafsanjan university of medical sciences)

background: the clinical success of sandwich technique depends on the strength of resin-modified glass ionomer cement (rmgic) bonding to both dentin and resin composite. therefore, the shear bond strength (sbs) of resin composite bonded to rmgic utilizing different resin adhesives versus a gic-based adhesive was compared. materials and methods: in this in vitro study, 84 holes (5×2 mm) were pre...

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Journal: :Brazilian dental journal 2001
A T Hara M C Serra A L Rodrigues Júnior

This study visually compared the radiopacity of seven restorative materials (3 resin-modified glass-ionomer cements, 3 polyacid-modified composite resins, and 1 conventional glass-ionomer cement) to a sound tooth structure sample, and an aluminium stepwedge. All hybrid materials were more radiopaque, except for one resin-modified glass-ionomer cement, than both the tooth structure and conventio...

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ژورنال: مجله دندانپزشکی 2004
برهان حقیقی, زهره, شفیعی, فرشته,

Statement of Problem: Because dental amalgam does not adhere to tooth structure, using adhesive cements in amalgam-bonded restorations have been increased. Purpose: The goal of this in-vitro study was to compare the effects of three types of glass ionomer as adhesive liners as well as varnish liner in increasing fracture resistance of teeth restored with amalgam. Materials and Methods: Seventy ...

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2013
Sumitha Upadhyay Arathi Rao Ramya Shenoy

OBJECTIVE To investigate and compare the amount of fluoride release of conventional, resin modified and nanofilled resin modified glass ionomer cements. MATERIALS AND METHODS Tablets of glass-ionomer cements were immersed in deionized water and incubated at 37°C. After 1, 2, 7, 15 and 30 days, fluoride ion was measured under normal atmospheric conditions by fluoride ion selective electrode. B...

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2017
Farahnaz Sharafeddin Seyed-Ali Ghaboos Zahra Jowkar

BACKGROUND The aim of this study was to investigate the effect of polyethylene fiber on diametral tensile strength of conventional and resin modified glass ionomer cements. MATERIAL AND METHODS 60 specimens in 6 groups (n=10) were prepared. In group 1 conventional glass ionomer (Fuji GC) and in group 2 resin modified glass ionomer (Fuji LC) were as control groups. In group 3 and 4 conventiona...

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Journal: :Journal of the Indian Society of Pedodontics and Preventive Dentistry 2011
S Upadhyay A Rao

BACKGROUND Glass ionomer cements are widely used in pediatric practice due to their advantage of fluoride release and chemical bond to tooth structure. Adherence of the restorative material to the cavity walls is one of the most important characteristic for it to be proven as an ideal material as it prevents microleakage. AIMS AND OBJECTIVES This study was aimed at evaluating the microleakage...

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2014
Deena Abraham Abi Mathew Thomas Saroj Chopra Stephen Koshy

OBJECTIVE To do a comparative study of microleakage of glass ionomer cement (GIC) and chitosan modified glass ionomer cement and evaluate which exhibited lesser microleakage. MATERIALS AND METHODS Sixty freshly extracted sound primary molar teeth were obtained. Two groups of samples were created for the study which comprised of group I (glass ionomer cement-GIC) and group II (Chitosan modifie...

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ژورنال: مجله دانشگاه علوم پزشکی شهید صدوقی یزد 2011
آیت اللهی, فاطمه, بهنیافر, بهناز, داوری, عبدالرحیم, موسوی, زهره,

Introduction: According to appropriate characteristics of glass ionomer cementum and constant increase of its usage in restorative field, so comparison of conventional and resin- modified glass ionomers seems to be useful. This study was designed to determine the shear bond strength of conventional and resin- modified glass Ionomers on enamel, dentin and cementum. Methods: This was an experime...

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2015
Liza George D Kandaswamy

BACKGROUND The purpose of this study was to evaluate the effect of dehydration of resin-modified glass ionomer powder/liquid system, resin-modified glass ionomer paste/paste luting cements in three different quantities and to compare them with a conventional glass ionomer luting cement using confocal laser scanning microscope. MATERIALS AND METHODS A conventional glass ionomer (Group I), a re...

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