نتایج جستجو برای: acrylic resin

تعداد نتایج: 38293  

Journal: :SADJ : journal of the South African Dental Association = tydskrif van die Suid-Afrikaanse Tandheelkundige Vereniging 2008
S B Khan G A V M Geerts

INTRODUCTION It is unknown how the use of a light-cured acrylic resin is appreciated over the traditional chemically cured resins for the construction of custom trays in a teaching environment. OBJECTIVE To evaluate the acceptance of light-cured acrylic resin for custom trays by dental students. METHOD A questionnaire addressing the use and handling properties of both light-cured (Megatray,...

Journal: :Dental materials journal 2004
Goro Nishigawa Yukinori Maruo Morihiko Oka Makoto Okamoto Shogo Minagi Masao Irie Kazuomi Suzuki

Plasma irradiation on surface of heat-cured acrylic resin prior to processing self-curing acrylic resin is likely to effectively increase the adhesive strength between these materials for short-term period. However, long-term reliability of adhesive strength between these materials has not been clarified yet. In the present study, these materials were stored in water for a long period (100 days...

2016
Pinar Altinci Pinar Durkaya

PURPOSE The discoloration of acrylic resin denture bases may lead to significant esthetic problems. The aim of this in vitro study was to investigate the effects of frequently consumed drinks on the color changes of fresh and aged, heat-polymerized, conventional acrylic resin. MATERIALS AND METHODS Eighty-four, heat-polymerized acrylic resin specimens (4 mm x 5 mm x 30 mm) were fabricated. Ha...

2015
Ricardo Dias de Castro Ana Carolina Loureiro Gama Mota Edeltrudes de Oliveira Lima André Ulisses Dantas Batista Julyana de Araújo Oliveira Alessandro Leite Cavalcanti

BACKGROUND Given the high prevalence of oral candidiasis and the restricted number of antifungal agents available to control infection, this study investigated the in vitro antifungal activity of alcohol vinegar on Candida spp. and its effect on the physical properties of acrylic resins. METHODS Tests to determine the Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration...

2017
K Sanyal

Harold Vernon first introduced acrylic polymers as denture base materials in 1937. A survey showed that 33% of denture repairs were to restore debonded teeth.1 Factors that affect the bonding of acrylic resin teeth to the denture base are dewaxing procedures, residual wax on ridge laps of teeth,2 and careless application separating media like sodium alginate to the teeth, leading to contaminati...

Journal: :journal of dentistry, tehran university of medical sciences 0
m. vojdani aar. khaledi

statement of problem: fracture strength of a denture base resin is of great concern, and many approaches have been used to strengthen acrylic resin dentures. purpose: the aim of this study was to measure the transverse strength of a heat polymerized acrylic resin, after reinforcement with metal wire and two types of glass fibers. materials and methods: forty rectangular specimens (65.0×10.0×3.3...

Aida Raftarifarimani, Rahab Ghoveizi, Sara Tavakolizadeh, Zahra Afshari,

Objectives Acrylic resins are one of the most important denture base materials in dentistry due to their favourable mechanical and physical properties. The purpose of present study is to compare 4 available acrylic flexural strength properties before and after thermocycling. Methods Acrylic resin specimens of Meliodent (Heraeus Kulzer, Hanau, Germany), Vertex (Vertex-dental BV, Zeist, Netherla...

Anita Eyvazlou, Gholam Reza Esfahanizade, Mohammad Pouyan, Zafar Mahdavi Izady,

Background and Aim: Making impression of several implants simultaneously for fabrication of dental prosthesis is challenging for many clinicians. Splinting can be performed for highly accurate impression making and better adaptation of prostheses. This study aimed to assess the effect of Impla and Duralay acrylic resin splinting materials on dimensional changes of direct implant impressions. ...

Water based inorganic alkali silicate binder of zinc rich primer was modified by adding acrylic resin derivatives. Several series of primer coatings were formulated by adding 5, 10 and 15 wt of acrylic and acrylic/styrene copolymer to potassium silicate binder and used as binder in zinc rich coatings. The formulated primers were applied on low carbon steel plates and the corrosion protection pr...

ژورنال: مجله دندانپزشکی 2002
امیر پرکان, محمد , عبادیان, بهناز ,

One of the most important characteristics of denture base is thermal conductivity. This property has a major role in secretions of salivary glands and their enzymes, taste of the food and gustatory response. Polymethyl methacrylate used in prosthodontics is relatively an insulator. Different materials such as metal fillers and ceramics have been used to solve this problem. The aim of this study...

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