scholarly journals Biological and Mechanical Properties of Denture Base Material as a Vehicle for Novel Hydroxyapatite Nanoparticles Loaded with Drug

2020 ◽  
Vol 11 (1) ◽  
pp. 86-95 ◽  
Author(s):  
Asmaa Nabil Elboraey ◽  
Hanan Hassan Abo-Almaged ◽  
Ahmed Abd El-Rahman El-Ashmawy ◽  
Aya Rashad Abdou ◽  
Amani Ramadan Moussa ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Base Material ◽  
Hydroxyapatite Nanoparticles ◽  
Denture Base

scholarly journals The Mechanical Properties of a Poly(methyl methacrylate) Denture Base Material Modified with Dimethyl Itaconate and Di-n-butyl Itaconate

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Pavle Spasojevic ◽  
Milorad Zrilic ◽  
Vesna Panic ◽  
Dragoslav Stamenkovic ◽  
Sanja Seslija ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Methyl Methacrylate ◽  
Surface Hardness ◽  
Base Material ◽  
Dynamic Mechanical Properties ◽  
Denture Base ◽  
Mean Values ◽  
Poly Methyl Methacrylate ◽  
Base Materials ◽  
Wide Range

This study investigates a wide range of clinically relevant mechanical properties of poly(methyl methacrylate) (PMMA) denture base materials modified with di-methyl itaconate (DMI) and di-n-butyl itaconate (DBI) in order to compare them to a commercial PMMA denture base material. The commercial denture base formulation was modified with DMI and DBI by replacing up to 10 wt% of methyl methacrylate (MMA) monomer. The specimens were prepared by standard bath curing process. The influence of the itaconate content on hardness, impact strength, tensile, and thermal and dynamic mechanical properties was investigated. It is found that the addition of di-n-alkyl itaconates gives homogenous blends that show decreased glass transition temperature, as well as decrease in storage modulus, ultimate tensile strength, and impact fracture resistance with increase in the itaconate content. The mean values of surface hardness show no significant change with the addition of itaconates. The magnitude of the measured values indicates that the poly(methyl methacrylate) (PMMA) denture base material modified with itaconates could be developed into a less toxic, more environmentally and patient friendly product than commercial pure PMMA denture base material.

scholarly journals Influence of Reinforcing Agents on the Mechanical Properties of Denture Base Resin: A Systematic Review

Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3083
Author(s):  
Alhanoof Aldegheishem ◽  
Modhi AlDeeb ◽  
Khold Al-Ahdal ◽  
Mohammad Helmi ◽  
Eman I. Alsagob
Keyword(s):  
Mechanical Properties ◽  
Systematic Review ◽  
Glass Fibers ◽  
Base Material ◽  
Filler Loading ◽  
Denture Base ◽  
Metal Metal ◽  
Base Resin ◽  
Focus Question ◽  
Denture Base Resin

Knowledge about the influence of fillers in denture base resin is vague. This systematic review aimed to report the reinforcing effect of fillers on the mechanical properties of denture base resin by following PRISMA guidelines. Two electronic databases (Pubmed/Medline & Web of Science) were searched for articles using the keywords: fibers in denture base, fillers in denture base, and reinforcement of denture base. Laboratory studies complying with the inclusion criteria were reviewed according to the set protocol. The established focus question was: “Do reinforcing fillers positively influence the mechanical properties of polymethyl methacrylate (PMMA) heat polymerized denture base material?” A total of twenty-nine relevant papers qualified for final inclusion. Of these, 24 were determined to have a moderate risk of bias. Micron or nano-sized metal/metal oxides particles and glass fibers were the frequently used reinforcing agents. The trend of evaluating fractural strength (FS) was common. Most of the studies limited the use of reinforcing agents up to 5 wt.%. FS, fracture toughness (FT), and impact strength (IS) tend to increase if the fillers are chemically bonded and well-dispersed in denture base resin. Though fillers with a higher elastic modulus increase the hardness of the reinforced denture base resin, they compromise other mechanical properties. Well-dispersed lower filler loading PMMA denture base resin can enhance the FS, FT, and other related mechanical properties.

Effect of post-curing light exposure time on the physico–mechanical properties and cytotoxicity of 3D-printed denture base material

2021 ◽  
Author(s):  
Sultan Aati ◽  
Zohaib Akram ◽  
Barsha Shrestha ◽  
Jainish Patel ◽  
Benjamin Shih ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Exposure Time ◽  
Light Exposure ◽  
Base Material ◽  
Denture Base ◽  
3D Printed ◽  
Curing Light

scholarly journals Mechanical Properties of Surface-Charged Poly(Methyl Methacrylate) as Denture Resins

2009 ◽  
Vol 2009 ◽  
pp. 1-6 ◽  
Author(s):  
Sang E. Park ◽  
Maggie Chao ◽  
P. A. Raj
Keyword(s):  
Mechanical Properties ◽  
Methyl Methacrylate ◽  
Methacrylic Acid ◽  
Acid Content ◽  
Testing Machine ◽  
Base Material ◽  
Strain History ◽  
Dental Resin ◽  
Denture Base ◽  
Poly Methyl Methacrylate

The aim of this study was to examine the mechanical properties of a new surface-modified denture resin for its suitability as denture base material. This experimental resin is made by copolymerization of methacrylic acid (MA) to poly(methyl methacrylate) (PMMA) to produce a negative charge. Four experimental groups consisted of Orthodontic Dental Resin (DENTSPLY Caulk) as a control and three groups of modified PMMA (mPMMA) produced at differing ratios of methacrylic acid (5 : 95, 10 : 90, and 20 : 80 MA : MMA). A 3-point flexural test using the Instron Universal Testing Machine (Instron Corp.) measured force-deflection curves and a complete stress versus strain history to calculate the transverse strength, transverse deflection, flexural strength, and modulus of elasticity. Analysis of Variance and Scheffe Post-test were performed on the data. Resins with increased methacrylic acid content exhibited lower strength values for the measured physical properties. The most significant decrease occurred as the methacrylic acid content was increased to 20%mPMMA. No significant differences atP<.05were found in all parameters tested between the Control and 5%mPMMA.

Effect of rigid rod polymer filler on mechanical properties of poly-methyl methacrylate denture base material

2008 ◽  
Vol 24 (5) ◽  
pp. 708-713 ◽  
Author(s):  
Anne-Maria Vuorinen ◽  
Scott R. Dyer ◽  
Lippo V.J. Lassila ◽  
Pekka K. Vallittu
Keyword(s):  
Mechanical Properties ◽  
Methyl Methacrylate ◽  
Base Material ◽  
Denture Base ◽  
Poly Methyl Methacrylate ◽  
Polymer Filler ◽  
Rigid Rod
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