scholarly journals Denture Plaque Control on Titanium Dioxide Coated Acrylic Resin Plates (Part 2: Effects of Cleaning Methods on Coating Materials)

2007 ◽  
Vol 61 (4/5) ◽  
pp. 107-110
Author(s):  
Eri Makihara ◽  
Shin-ichi Masumi ◽  
Masahiro Arita ◽  
Shuichiro Howashi ◽  
Toshihiro Kawano ◽  
...  
2007 ◽  
Vol 61 (2/3) ◽  
pp. 82-86 ◽  
Author(s):  
Eri Makihara ◽  
Shin-ichi Masumi ◽  
Masahiro Arita ◽  
Toshihiro Takeuchi ◽  
Toshihiro Kawano ◽  
...  

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2271 ◽  
Author(s):  
Yan Hao Ng ◽  
Indraneel Suhas Zope ◽  
Aravind Dasari ◽  
Kang Hai Tan

Material-scale tests involving milligrams of samples are used to optimize fire-retardant coating formulations, but actual applications of these coatings require them to be assessed with structural-scale fire tests. This significant difference in the scale of testing (milligrams to kilograms of sample) raises many questions on the relations between the inherent flammability and thermal characteristics of the coating materials and their “performance” at the structural scale. Moreover, the expected “performance” requirements and the definition of “performance” varies at different scales. In this regard, the pathway is not established when designing and formulating fire-retardant coatings for structural steel sections or members. This manuscript explores the fundamental relationships across different scales of testing with the help of a fire-protective system based on acrylic resin with a typical combination of intumescent additives, viz. ammonium polyphosphate, pentaerythritol, and expandable graphite. One of the main outcomes of this work dictates that higher heat release rate values and larger amounts of material participating in the pyrolysis process per unit time will result in a rapid rise in steel substrate temperature. This information is very useful in the design and development of generic fire-retardant coatings.


2005 ◽  
Vol 4 (1) ◽  
pp. 69-76 ◽  
Author(s):  
Daisuke Kado ◽  
Kaoru Sakurai ◽  
Tetsuya Sugiyama ◽  
Takayuki Ueda

2009 ◽  
Vol 36 (12) ◽  
pp. 902-908 ◽  
Author(s):  
T. ARAI ◽  
T. UEDA ◽  
T. SUGIYAMA ◽  
K. SAKURAI

Gerodontology ◽  
2015 ◽  
Vol 33 (4) ◽  
pp. 539-544 ◽  
Author(s):  
Masashi Tsuji ◽  
Takayuki Ueda ◽  
Kohei Sawaki ◽  
Mitsuru Kawaguchi ◽  
Kaoru Sakurai

2020 ◽  
Vol 16 (2) ◽  
pp. 61-63
Author(s):  
Kadek Ayu Wirayuni ◽  
◽  
Sintha Nugrahini

Accumulation of plaque and food scraps on an acrylic resin base will increase bacterial colonies and C. albicans which will cause denture stomatitis. Maintenance of denture hygiene using mechanical, chemical and combination of two methods. Basil leaf extract contain essential oils which are important in fight against resistant C. albicans biofilms. The purpose of this study was to determine the comparison of C. albicans colonies after cleaning various denture cleaning methods. The method of this study is used an experimental method, the study design is posttest only with control group design. Sample size of heat-cured acrylic resin plate is 40x12x3mm. this study use Kruskall-Wallis test and Mann-Whitney test as data analysis for comparison tests between groups (non-parametric test). The results showed that there were significant differences between the various cleansing methods used in reducing C. albicans colonies. The compotition of flavonoids basil leaf extract is anti-microbial which can prevent the entry of fungi that harm the body.


2021 ◽  
Author(s):  
Andreia Pereira ◽  
Márcia Vilarigues ◽  
Inês Coutinho

Conservation and restoration on archaeological objects in glass often involve the removal of materials from previous restorations and comprise a deep knowledge about present and past methodologies. This article presents a literature survey and critical analysis of the main materials used in the different stages of intervention: cleaning, consolidation, joining fragments and filling gaps. A considerable number of used products was identified, which illustrates the use of various methodologies among professionals from this area. Cleaning methods vary from mechanical methods using a brush (less invasive) to the use of various acidic solutions, some of which can endanger the integrity of objects, being the most common ethylenediamine tetra-acetic acid. We highlight the use of epoxy resins as adhesive, consolidant and filler, as well as the acrylic resin Paraloid B-72, identified as reversible, colorless, stable and inert. This survey and analysis of the bibliography reveals the need to implement common intervention methodologies dedicated to this material.


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