نتایج جستجو برای: heat polymerized acrylic resin
تعداد نتایج: 242710 فیلتر نتایج به سال:
Introduction: Detachment of denture teeth from denture base is one of the most common reasons for costly denture repairs .This study aimed at evaluating the bond strength of an acrylic denture tooth to polyamide injection-molded thermoplastic denture base material compared with three conventional polymethylmethacrylate (PMMA) denture base resins. Materials and Method: A total of 40 acrylic dent...
BACKGROUND/AIM Acrylic-based resins are intensively used in dentistry practice as restorative or denture-base materials. The purpose of this study was to analyze the surface structure of denture base resins and the amount of released potentially toxic substances (PTS) immediately upon polymerization and incubation in different types of artificial saliva. METHODS Storage of acrylic samples in ...
STATEMENT OF PROBLEM Two potential problems commonly identified with a denture base incorporating a resilient liner are failure of the bond between acrylic resin and soft liner material, and loss of resiliency of the soft liner over time. Since patients may drink different beverages, it is important to evaluate their effects on physical properties of soft lining materials. PURPOSE The objecti...
UNLABELLED The development of implant dentistry improved the possibilities of rehabilitation with maxillofacial prosthesis. However, clinically it is difficult to bond the silicone to the attachment system. OBJECTIVES This study aimed to evaluate the effect of an adhesive system on the bond strength between acrylic resin and facial silicone. MATERIAL AND METHODS A total of 120 samples were ...
Purpose: Denture-related stomatitis is probably the most common form of oral candidiasis and its reported prevalence varies widely ranging up to 65%. In this in vitro study, we evaluate the effect of delmopinol application on Candida albicans adherence on heat-cured acrylic resin, cold-cured acrylic resin and microwave-cured acrylic resin. Materials and methods: A total of 40 specimens of each ...
Background: Denture bases that are often used in dentistry heat cured polymethyl methacrylate acrylic resin or polymerized resin. Acrylic has a weakness, namely the surface of can trigger growth bacteria and Candida albicans. albicans an important role occurrence denture stomatitis. Epidemiological studies show prevalence stomatitis is quite high, ranging from 30%-50% users. Innovation needed t...
Objective. The aim of this study was to evaluate the effect of incorporation of glass fiber, zirconia, and nano-zirconia on the transverse strength of repaired denture base. Materials and Methods. Eighty specimens of heat polymerized acrylic resin were prepared and randomly divided into eight groups (n = 10): one intact group (control) and seven repaired groups. One group was repaired with auto...
Abstract Statement of problem: Addition zirconium oxide nanofillers to PMMA had improved the mechanical properties heat polymerized acrylic resin, but it’s effect on bond strength teeth hadn’t been evaluated yet. Purpose: The purpose study was evaluate Zirconium (ZrO2) powder with different concentrations (1.5%, 3%, 5%) resin denture base before and after thermocycling. Material methods: nanopa...
Purpose: Heat cure methyl methacrylate has been the denture base material of choice for fabrication conventional complete dentures and transitional removable partial dentures. One factors that cause fracture is considered to be low resistance impact, flexural or fatigue. However, repaired with auto-polymerizing acrylic resin alone often experience a re-fracture at site. This study aimed evaluat...
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