Comparison Study on the Influence of Al2O3 Nanoparticle Size and Ternary Hybrid on Several Properties of a PMMA Denture Composite

Kamel Earar; Oleg Solomon; Gabi Topor; Iulian Constantin; Adrian Beznea; Ciprian Adrian Dinu; Lucretia Anghel; Victorita Stefanescu; Silvia Fotea; Ramona Feier; Camelia Ana Grigore

doi:10.37358/mp.21.2.5483

Comparison Study on the Influence of Al2O3 Nanoparticle Size and Ternary Hybrid on Several Properties of a PMMA Denture Composite

Materiale Plastice ◽

10.37358/mp.21.2.5483 ◽

2021 ◽

Vol 58 (2) ◽

pp. 119-129

Author(s):

Kamel Earar ◽

Oleg Solomon ◽

Gabi Topor ◽

Iulian Constantin ◽

Adrian Beznea ◽

...

Keyword(s):

Mechanical Properties ◽

Methyl Methacrylate ◽

Water Absorption ◽

Low Cost ◽

Base Material ◽

Polymeric Materials ◽

Ease Of Use ◽

Composite Resins ◽

Resin Matrix ◽

Denture Base

In esthetic restorative dentistry, resin composites are generally encountered. Because of their excellent biocompatibility, lack of taste, odour, tissue discomfort, and toxicity, insolubility in body fluids, ease of use, good clinical/ aesthetic properties, stable colours, optical characteristics, efficient pigmentation, low cost, and repairability, they are becoming more common. Currently used composite resins have some flaws, particularly inconsistent mechanical properties. For a long time, particles of various sizes have been used as fillers to enhance these properties. In prosthodontics, poly(methyl methacrylate) (PMMA) is commonly used as a dental base material. It does, nevertheless, have several weaknesses, including low strength and weak thermal properties. The effects of different sizes of alumina (Al2O3) particles on the poly(methyl ethacrylate) (PMMA) denture base were determined in this experiment. PMMA powder was blended with Al2O3 added to methyl methacrylate (MMA).For PMMA polymeric materials strengthened with Al2O3 (40 nm, 140 nm and 0.3-0.8 μm) in various concentrations, the mechanical properties were studied.Also, the synergetic influence of the three nanoparticle sizes in the resin matrix was studied.Furthermore, thermogravimetric (TGA) analysis and water absorption and solubility characteristics of the composites prepared were also examined. Among the most significant properties to be obtained for good denture materials is high mechanic properties, water absorption and solubility, since they have different attributes in the aqueous condition of the oral cavity. Results showed clear properties optimization, especially for the size-hybrid alumina composites.

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Diffusion and solubility of commercial poly(methyl methacrylate) denture base material modified with dimethyl itaconate and di-n-butyl itaconate during water absorption/desorption cycles

Polymer International ◽

10.1002/pi.4202 ◽

2012 ◽

Vol 61 (8) ◽

pp. 1272-1278 ◽

Cited By ~ 6

Author(s):

Pavle Spasojević ◽

Dragoslav Stamenković ◽

Rada Pjanović ◽

Nevenka Bošković-Vragolović ◽

Jelena Dolić ◽

...

Keyword(s):

Methyl Methacrylate ◽

Water Absorption ◽

Base Material ◽

Denture Base ◽

Poly Methyl Methacrylate ◽

Dimethyl Itaconate

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

International Journal of Polymer Science ◽

10.1155/2015/561012 ◽

2015 ◽

Vol 2015 ◽

pp. 1-9 ◽

Cited By ~ 10

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.

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Effect of nano- and micro-alumina fillers on some properties of poly(methyl methacrylate) denture base composites

Journal of the Serbian Chemical Society ◽

10.2298/jsc170118056k ◽

2018 ◽

Vol 83 (1) ◽

pp. 75-91 ◽

Cited By ~ 4

Author(s):

Fathie Kundie ◽

Che Azhari ◽

Zainal Ahmad

Keyword(s):

Mechanical Properties ◽

Thermal Stability ◽

Fracture Toughness ◽

Methyl Methacrylate ◽

Water Absorption ◽

Nano Particles ◽

Nano Composites ◽

Al2o3 Nanoparticles ◽

Denture Base ◽

Poly Methyl Methacrylate

This research investigated the effects of alumina (Al2O3) micro- and nano-particles on poly(methyl methacrylate) (PMMA) denture base. Al2O3 was surface treated using (3-methacryloxypropyl)trimethoxysilane (?-MPS), added to methyl methacrylate (MMA), and mixed with PMMA powder. The filler volume fractions in the micro-composites were 0.5, 1, 2, 5 and 7 wt. %, whereas those in the nano-composites were 0.13, 0.25, 0.5, 1, 2 and 5 wt. %. The treated fillers were examined using Fourier transform infrared spectroscopy (FTIR). The influence of filler size and loading on mechanical properties was studied using fracture toughness and flexural tests. The thermal stability of the PMMA/Al2O3 composites was investigated using thermogravimetric analysis (TGA). In addition, the water absorption and solubility characteristic of the prepared composites was also investigated. The FTIR spectra showed new absorption bands, indicating the occurrence of surface modifications. Both micro- and nanoscale particles showed increased fracture toughness. The maximum value of 2.02 MPa?m1/2 was achieved with the addition of 0.5 wt. % nano-Al2O3, which accounts for a 39 % increase. In contrast to the flexural strength, the flexural modulus improved with increasing filler content. The micro-composites showed higher thermal stability than nano-composites. The water absorption and solubility of the prepared composites were slightly higher than those of the control. The use of low concentrations of Al2O3 nanoparticles may be of considerable interest in future studies to improve the mechanical properties of PMMA denture base.

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

International Journal of Dentistry ◽

10.1155/2009/841431 ◽

2009 ◽

Vol 2009 ◽

pp. 1-6 ◽

Cited By ~ 13

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.

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

Dental Materials ◽

10.1016/j.dental.2007.07.003 ◽

2008 ◽

Vol 24 (5) ◽

pp. 708-713 ◽

Cited By ~ 32

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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The Effect of Polyamide Micro-Particles Addition on Some Mechanical Properties of Heat cured Poly Methyl Methacrylate Denture Base Material

Indian Journal of Public Health Research & Development ◽

10.5958/0976-5506.2019.02603.2 ◽

2019 ◽

Vol 10 (9) ◽

pp. 1178

Author(s):

Mithaq R. Mohammed

Keyword(s):

Mechanical Properties ◽

Methyl Methacrylate ◽

Base Material ◽

Denture Base ◽

Poly Methyl Methacrylate ◽

Micro Particles

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Influence of kaolin filler on the mechanical properties of Luffa cylindrica/ polyester composite

10.21203/rs.3.rs-270130/v1 ◽

2021 ◽

Author(s):

Aliyu Yaro ◽

Laminu Kuburi ◽

Musa Abiodun Moshood

Keyword(s):

Mechanical Properties ◽

Polyester Resin ◽

Unsaturated Polyester ◽

Low Cost ◽

Microstructural Analysis ◽

Polymeric Materials ◽

Weight Fraction ◽

Industrial Applications ◽

Luffa Cylindrica ◽

Polyester Composite

Abstract Polymeric materials are used in different industrial applications because they retain good environmental properties, low-cost, and easy to produce compared to conventional materials. This study investigated the effect of adding kaolin micro-filler (KF) on the mechanical properties of Luffa Fiber (LCF) reinforced polyester resin. Luffa cylindrica fiber treated with 5% NaOH, varied in weight fraction (5, 10, and 15%wt) was used to reinforce unsaturated polyester resin using hand lay-up method, whereas for the hybrid composite kaolin filler were kept constant at 6wt% fraction while the fibers varied as in the mono-reinforced composite. The samples were machined for mechanical and microstructural analysis. Analysis of the result revealed that the addition of kaolin has enhanced greatly the mechanical properties of Luffa-fibre based composites. The result reveal of the microstructure analysis, shows that there is an improvement in fiber-matrix adhesion.

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Pengaruh minuman teh pada pemakai basis gigi tiruan nilon termoplastik terhadap penyerapan air dan stabilitas warnaThe effect of tea on the thermoplastic nylon denture base wearers on water absorption and colour stability

Jurnal Kedokteran Gigi Universitas Padjadjaran ◽

10.24198/jkg.v32i1.26371 ◽

2020 ◽

Vol 32 (1) ◽

pp. 66

Author(s):

Siti Wahyuni ◽

Chairunnisa Ricca

Keyword(s):

Water Absorption ◽

Base Material ◽

Acrylic Resin ◽

Polyamide 6 ◽

T Test ◽

Laboratory Research ◽

Colour Stability ◽

Denture Base ◽

Group A ◽

Group B

Pendahuluan: Nilon termoplastik merupakan basis gigi tiruan yang banyak diminati oleh para dokter gigi karena memiliki beberapa keuntungan dibandingkan bahan basis gigi tiruan resin akrilik. Diantara jenis nilon termoplastik yang sering dijadikan basis gigi tiruan adalah poliamida 6 dan poliamida mikrokristalin. Poliamida Mikrokristalin merupakan poliamida generasi baru yang dibuat untuk menanggulangi kelemahan pada poliamida sebelumnya. Tujuan penelitian ini adalah menganalisis pengaruh minuman teh pada pengguna gigi tiruan nilon termoplastik terhadap penyerapan air dan stabilitas warna. Metode: Jenis penelitian ini adalah experimental laboratoris. Jumlah sampel terdiri dari 40 dengan ukuran diameter 15 mm ± 1 mm dan ketebalan 0.5 mm ± 0,1 mm (ISO 4049) dan terbagi menjadi 4 kelompok (kelompok A poliamida 6 dan kelompok B poliamida mikrokristalin untuk penyerapan air serta kelompok C poliamida 6 dan kelompok D poliamida mikrokristalin untuk uji stabilitas warna). Semua sampel direndam dalam larutan teh selama 7 hari. Data dianalisis dengan uji T Independen. Gambaran mikroskopis sampel diuji dengan SEM Hasil: Berdasarkan uji T Independen hasil menunjukkan perbedaan yang signifikan diantara kelompok A dan B, C dan D. Uji T independen menunjukkan perbedaan yang signifikan diantara kelompok A dan B, C dan D (p=0,0001, p<0,05) Simpulan: Terdapat pengaruh minuman teh pada pengguna gigi tiruan nilon termoplastik. Poliamida Mikrokristalin memiliki penyerapan air yang lebih sedikit dan stabilitas warna yang lebih baik dibandingkan Poliamida 6.Kata kunci: Nilon termoplastik, poliamida 6, poliamida mikrokristalin, penyerapan air, stabilitas warna, SEM. ABSTRACTIntroduction: Thermoplastic nylon is a denture base mostly demanded by dentists due to its several advantages over acrylic resin denture base material. Among the types of thermoplastic nylon that are often used as denture bases are polyamide 6 and microcrystalline polyamide. Microcrystalline polyamide is the new generation of polyamides created to overcome the weaknesses of previous polyamides. The purpose of this study was to analyse the effect of tea on thermoplastic nylon denture wearers on water absorption and colour stability. Methods: This research was experimental laboratory research on 40 samples with a diameter of 15 mm ± 1 mm, and a thickness of 0.5 mm ± 0.1 mm (ISO 4049), divided into four groups (Group A was the polyamide 6; Group B was the microcrystalline polyamide on the water absorption; Group C was polyamide 6; and Group D was microcrystalline polyamide on the colour stability). All samples were immersed in the tea solutions for 7 days. Data were analysed with independent t-test. The microscopic structure was analysed using the scanning electron microscope (SEM). Results: The results showed significant differences between group A, B, C, and D. The independent t-test also showed significant differences between group A, B, C, and D (p = 0.000; p < 0.05). Conclusion: There is an effect of tea on the thermoplastic nylon denture wearers. Microcrystalline polyamides have less water absorption and better colour stability than Polyamide 6.Keywords: Polyamide 6, thermoplastic nylon, microcrystalline polyamide, water absorption, colour stability, SEM.

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