Results 151 to 160 of about 518 (176)

Properties of silicone maxillofacial elastomer processed in stone and metal

The Journal of Prosthetic Dentistry, 1980
1. The effect of mold conditions on the UTS, n, and TS at 200% and 300% elongations, and Shore A hardness was measured for Silastic 44210. 2. There was no difference in n, Shore A hardness, and TS at 200% and 300% elongation between Silastic 44210 samples whether produced in metal or coated stone molds. 3.
C N, Raptis, R, Yu, J G, Knapp
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In Vitro Cytotoxicity of Maxillofacial Silicone Elastomers: Effect of Nano‐particles

Journal of Prosthodontics, 2016
AbstractPurposeSilicone elastomers are generally used for maxillofacial extraoral prostheses. The purpose of this in vitro study was to evaluate the cytotoxicity of different kinds of nanoparticles added to two types of maxillofacial elastomers.Materials and MethodsA‐2000 and A‐2006 silicone elastomers were used.
Karakış, Duygu, Akay, Canan, Sevim, Handan, Çevik, Pınar   +3 more
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The Use of Silicon Elastomer in Maxillofacial Rehabilitation as a Substitute for or in Conjunction With Resins

Journal of Craniofacial Surgery, 2006
Maxillofacial prosthetic rehabilitation aims to restore anatomic function when serious tissue defects are present, as a result of congenital factors, trauma, or surgery. The aims are both aesthetic and functional, and results are obtained using devices that contain, reconstruct, and fill.
Mortellaro C, Garagiola U, Lucchina AG, Grivetto F, Milone G, Pappalardo S, Palmeri A, Scorsone D, SAMMARTINO, GILBERTO   +8 more
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Maxillofacial Silicone Elastomers in Dentistry

2020
Maxillofacial prostheses are used for patients with deformities in the maxillofacial area induced by cancer, trauma or congenital defects. Different types of polymers are used in the manufacture of maxillofacial prosthesis. However, silicone elastomers are the polymers most commonly used in the maxillofacial prosthodontics because of their acceptable ...
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In vitro cytotoxicity of maxillofacial silicone elastomers: Effect of accelerated aging

Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2008
AbstractThe purpose of this in vitro study was to evaluate the cytotoxicity of three maxillofacial silicone elastomers at 24, 48, and 72 h on L‐929 cells and to determine the effect of accelerated aging on the cytotoxicity of these silicone elastomers.
Yilmaz, Suekran, AYDIN, CEMAL, TURHAN BAL, BİLGE, Karakoca, Secil, YILMAZ, HANDAN   +4 more
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Effect of thixotropic agents as additives on the mechanical properties of maxillofacial silicone elastomers

The Journal of Prosthetic Dentistry, 2018
The incorporation of thixotropic agents to prevent slumping during the silicone packing procedure may alter some favorable mechanical properties of the silicone elastomers and could possibly influence the success of the prosthesis.The purpose of this in vitro study was to evaluate the effect of adding thixotropic agents on the mechanical properties of ...
Abdel Rahim M, Bibars, Zeid, Al-Hourani, Yousef, Khader, Mark, Waters   +3 more
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Characterization of maxillofacial silicone elastomer reinforced with different hollow microspheres

Journal of Materials Science, 2015
The composition and properties of silicone–hollow microsphere composites were studied in view of establishing a new type of maxillofacial prosthesis material. Two types of microspheres were used in different concentrations and were well dispersed in the silicone matrix. The mechanical properties of the composites were evaluated.
Qi Liu, Longquan Shao, Haosen Fan, Yuhua Long, Ning Zhao, Shuguang Yang, Xiaoli Zhang, Jian Xu   +7 more
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Changes in appearance of silicone elastomers for maxillofacial prostheses as a result of aging.

The International journal of prosthodontics, 2000
The purpose of this study was to investigate the influence of certain defined variables on color and opacity of silicone elastomers for maxillofacial prostheses.Three condensation-type and five addition-type silicone elastomers were tested for their changes in color and opacity as a result of aging.
A K, Hulterström, I E, Ruyter
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Influence of Pigment and Opacifier on Dimensional Stability and Detail Reproduction of Maxillofacial Silicone Elastomer

Journal of Craniofacial Surgery, 2011
We evaluated the influence of chemical disinfection and accelerated aging on the dimensional stability and detail reproduction of a silicone elastomer containing an opacifier and/or a pigment. A total of 120 samples were fabricated from Silastic MDX 4-4210 silicone and divided into groups (n = 10) according to pigment and/or opacifier (ceramic powder ...
Haddad, Marcela Filie, Goiato, Marcelo Coelho, Santos, Daniela Micheline dos, Pesqueira, Aldieris Alves, Moreno, Amalia, Pellizzer, Eduardo Piza   +5 more
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Biocompatibility testing of a silicone maxillofacial prosthetic elastomer: Soft tissue study in primates

The Journal of Prosthetic Dentistry, 1992
Little information exists on the biocompatibility of maxillofacial prosthetic materials. Cosmesil material is a purpose-designed facial prosthetic elastomer that has an established clinical profile in humans but results of biocompatibility testing have not been published. Cosmesil, acrylic resin (positive control), black surgical gutta-percha (negative
J F, Wolfaardt, P, Cleaton-Jones, J, Lownie, G, Ackermann   +3 more
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