scholarly journals Fiber-reinforced nanopigmented poly(methyl methacrylate) as improved denture base

2014 ◽  
Vol 132 (2) ◽  
Author(s):  
V. Moreno-Maldonado ◽  
L. S. Acosta-Torres ◽  
F. H. Barceló-Santana ◽  
R. D. Vanegas-Lancón ◽  
M. E. Plata-Rodríguez ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Fiber Reinforced ◽  
Denture Base ◽  
Poly Methyl Methacrylate

Fiber-reinforced nanopigmented poly(methyl methacrylate) as improved denture base

2012 ◽  
Vol 126 (1) ◽  
pp. 289-296 ◽  
Author(s):  
V. Moreno-Maldonado ◽  
L. S. Acosta-Torres ◽  
F. H. Barceló-Santana ◽  
R. D. Vanegas-Lancón ◽  
M. E. Plata-Rodríguez ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Fiber Reinforced ◽  
Denture Base ◽  
Poly Methyl Methacrylate

scholarly journals Removable partial or complete dentures exposed to beverages and mouthwashes: evaluation of microhardness and roughness

2015 ◽  
Vol 44 (4) ◽  
pp. 189-194 ◽  
Author(s):  
Fernanda Alves Feitosa ◽  
Mateus Guimarães Lage Reggiani ◽  
Rodrigo Máximo de Araújo
Keyword(s):  
Methyl Methacrylate ◽  
Artificial Saliva ◽  
Soft Drink ◽  
Initial Period ◽  
Lemon Juice ◽  
Chlorhexidine Gluconate ◽  
Denture Base ◽  
Mean Values ◽  
Poly Methyl Methacrylate ◽  
The Mean

<title>Abstract</title><sec><title>Purpose</title><p>To evaluate microhardness and roughness of denture base polymethylmethacrylate resinn exposed to acid beverages and mouthwashes.</p></sec><sec><title>Material and method</title><p>Rectangular samples (n=80) were prepared from poly (methyl methacrylate) (PMMA). They were divided into 8 groups and had the initial microhardness and Knoop roughness measured. Samples of each group were immersed for 10 min into a test solution (coffee, lemon juice, chlorhexidine gluconate, red wine, cola-based soft drink, vinegar or antiseptic with and without alcohol) and after stored in artificial saliva for 23 h and 50 min, completing a period of 24 h. This procedure was performed for 14 consecutive days and after this period the microhardness and surface roughness measurements were made again. Data were statistically analyzed using ANOVA non parametric, Kruskal-Walis and the Dunn´s test for microhardness and the t-Student and ANOVA for roughness.</p></sec><sec><title>Result</title><p>For microhardness there were found statistically significant differences among the chlorhexidine gluconate solution, antiseptic without alcohol and cola-based soft drink. For roughness was observed that the mean values between the initial period and after immersion in the test products differed statistically in all groups, without difference among groups.</p></sec><sec><title>Conclusion</title><p>The microhardness of poly(methyl methacrylate) was affected by continue exposition to chlorhexidine gluconate, antiseptic without alcohol and cola-based soft drink. The roughness of poly(methyl methacrylate) is negatively influenced by the exposure to all tested products. It may be concluded that both, microhardness and roughness, were affected by the treatments.</p></sec>

scholarly journals Heat-cured poly(methyl methacrylate) resin incorporated with different food preservatives as an anti-microbial denture base material

2020 ◽  
Author(s):  
Montri Ratanajanchai ◽  
Widchaya Kanchanavasita ◽  
Kallaya Suputtamongkol ◽  
Amonrat Wonglamsam ◽  
Sirinporn Thamapipol ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Base Material ◽  
Food Preservatives ◽  
Denture Base ◽  
Poly Methyl Methacrylate

scholarly journals Effect of Antibacterial Silver-Releasing Filler on the Physicochemical Properties of Poly(Methyl Methacrylate) Denture Base Material

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4146 ◽  
Author(s):  
Grzegorz Chladek ◽  
Katarzyna Pakieła ◽  
Wojciech Pakieła ◽  
Jarosław Żmudzki ◽  
Marcin Adamiak ◽  
...  
Keyword(s):  
Impact Strength ◽  
Flexural Strength ◽  
Methyl Methacrylate ◽  
Flexural Modulus ◽  
Base Material ◽  
Distilled Water ◽  
Denture Base ◽  
Inorganic Particles ◽  
Poly Methyl Methacrylate ◽  
Enhanced Solubility

Colonization of polymeric dental prosthetic materials by yeast-like fungi and the association of these microorganisms with complications occurring during prosthetic treatment are important clinical problems. In previously presented research, submicron inorganic particles of silver sodium hydrogen zirconium phosphate (S–P) were introduced into poly(methyl methacrylate) (PMMA) denture base material which allowed for obtaining the antimicrobial effect during a 90 day experiment. The aim of the present study was to investigate the flexural strength, impact strength, hardness, wear resistance, sorption, and solubility during three months of storage in distilled water. With increasing S–P concentration after 2 days of conditioning in distilled water, reduced values of flexural strength (107–72 MPa), impact strength (18.4–5.5 MPa) as well as enhanced solubility (0.95–1.49 µg/mm3) were registered, but they were at acceptable levels, and the sorption was stable. Favorable changes included increased hardness (198–238 MPa), flexural modulus (2.9–3.3 GPa), and decreased volume loss during wear test (2.9–0.2 mm3). The percentage changes of the analyzed properties during the 90 days of storage in distilled water were similar for all materials.

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

2012 ◽  
Vol 61 (8) ◽  
pp. 1272-1278 ◽  
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
Sign in / Sign up

Export Citation Format

Share Document