Results 151 to 160 of about 521 (178)
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Use of thermochromic pigment in maxillofacial silicone elastomer
The Journal of Prosthetic Dentistry, 2013Silicone elastomers are used to fabricate external maxillofacial prostheses and are colored to match the adjacent facial skin. In cold winter weather, in certain individuals, the color of the skin changes toward red, which leads to a color difference between the prostheses and the surrounding tissue.The purpose of this study was to study the use of a ...
Kantola, RM +3 more
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Properties of Maxillofacial Silicone Elastomers Reinforced with Silica Powder
Journal of Biomaterials Applications, 1998Compounds of a silicone elastomer suitable for preparing maxillo-facial prostheses, reinforced with various amounts of silica powder, have been studied for their mechanical response and wetting properties in terms of contact angle. Tensile strength and elongation at break showed an increase with increasing silica volume fraction up to 35%, whereas the ...
A G, Andreopoulos +2 more
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Properties of silicone maxillofacial elastomer processed in stone and metal
The Journal of Prosthetic Dentistry, 19801. 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, 2016AbstractPurposeSilicone 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 +3 more
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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 +8 more
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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 +8 more
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Maxillofacial Silicone Elastomers in Dentistry
2020Maxillofacial 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, 2008AbstractThe 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 +4 more
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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 +3 more
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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 +3 more
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Changes in appearance of silicone elastomers for maxillofacial prostheses as a result of aging.
The International journal of prosthodontics, 2000The 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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Characterization of maxillofacial silicone elastomer reinforced with different hollow microspheres
Journal of Materials Science, 2015The 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 +7 more
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