نتایج جستجو برای: polymethyl methacrylate pmma
تعداد نتایج: 12682 فیلتر نتایج به سال:
Antibiotic-loaded carriers were developed to fill cavities and locally deliver antibiotics following implantation. However, the most commonly used antibiotic carrier, polymethyl methacrylate (PMMA), has many disadvantages including that it does not promote bone regeneration or conduction. Vancomycin-loaded bone-like hydroxyapatite/poly amino acid (V-BHA/PAA) was successfully fabricated by a hom...
Polymethyl methacrylate (PMMA) bone cement is being used to fill voids that are created due vertebral compression fractures. It also a grouting medium in orthopedic joint replacement surgeries as they possess fast primary fixation the bone. Considering properties and vitro bioactivity of essential for cemented hip knee surgeries. In this study, commercial Simplex P (SPBC) modified with carboxyl...
Surface coverings using nanomaterials of silica nanoparticles and poly (methyl methacrylate) – abbreviated “PMMA-silica nanomaterials” are introduced to the Y 2 O S:Eu 3+ phosphor through four distinct approaches. The objective is enhance phosphorescence prolonged sustainability. Using immerse-daubing along with sol-gel approach (Stober way), it possible have phosphors covered relatively-monodi...
OBJECTIVE Polymethyl methacrylate (PMMA), widely used as a prosthodontic base, has many disadvantages, including a high thermal expansion coefficient and low thermal conductivity, a low elasticity coefficient, low impact strength and low resistance to fatigue. This study aimed to make an in vitro comparison of the thermal conductivity, compressive strength, and tensile strength of the acrylic b...
Polymethyl methacrylate (PMMA) bone cement is a commonly used bone adhesive and filling material in percutaneous vertebroplasty and percutaneous kyphoplasty surgeries. However, PMMA bone cements have been reported to cause some severe complications, such as secondary fracture of adjacent vertebral bodies, and loosening or even dislodgement of the set PMMA bone cement, due to the over-high elast...
STATEMENT OF PROBLEM Most fractures of dentures occur during function, primarily because of the flexural fatigue of denture resins. PURPOSE The purpose of this study was to evaluate a polymethyl methacrylate denture base material modified with multiwalled carbon nanotubes in terms of fatigue resistance, flexural strength, and resilience. MATERIAL AND METHODS Denture resin specimens were fab...
Objective: The present study aims to investigate the mechanical properties of base materials [polymethyl methacrylate (PMMA)/polyether ether ketone (PEEK)] fabricated with computeraided design/computer-aided manufacturing (CAD/CAM) and heatpolymerized conventional materials. Material Methods: Two different polymers milled CAD/CAM (Yamahachi PMMA Disk Juvora Dental PEEK) heat-polymerized acrylic...
background and aims. polymethyl methacrylate, pmma, is widely used in prosthodontics for fabrication of removable prostheses. this study was undertaken to investigate the effect of adding silver nanoparticles (agnps) to pmma at 2% and 0.2% concentrations on compressive and tensile strengths of pmma. materials and methods. the silver nanoparticles were mixed with heat-cured acrylic resin in an a...
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