Physical properties of a silicone prosthetic elastomer stored in simulated skin secretions

Evaluation of the effect of ultraviolet stabilizers on the change in color of a silicone elastomer following aging by three different methods:An in vitro study

“…18 The literature has reported on UV degradation of elastomers and a subsequent change in their mechanical and optical properties. [7][8][9][10]24 The strategies for stabilization of elastomers have included the use of UV stabilizers, thermochromic pigments and opacifiers. 7,[13][14][15][16][17] Such attempts at stabilization of elastomers have yielded mixed results.…”

“…Ageing parameters for accelerated weathering in a chamber, use of artificial perspiration and cleansing agent were based on protocols followed by Hatamleh et al 22 and Eleni et al 26 Artificial perspiration solution was obtained by following the methodology described by Hatamleh et al 22 and Polyzois et al. 24 Such a solution has been used as a standard for exposure of the silicone elastomer samples to simulated body fluids. The cleansing agent chosen for the study was one of the most popular agents used by patients for cleaning and disinfecting prostheses in India.…”

“…The composition included 0.5 grams L-histidine monohydrochloride monohydrate, 5 grams Sodium Chloride (NaCl), 5 grams Disodium hydrogen orthophosphate dodececahydrate (Na2HPO4×12 H2O) and 2.2 grams Sodium dihydrogen orthophosphate dehydrate (Na2HPO4×2 H2O) in 1 litre of distilled water. 22,24 All chemicals were supplied by Sigma-Aldrich Co. LLC. Bangalore, India.…”

Improved edge strength in a facial prosthesis by incorporation of tulle: a clinical report

“…As a result of the use of colorants, adhesives, cosmetic agents, solvents, and cleaners that are applied to the prosthesis, marginal breakdown occurs. [6][7][8][9][10] The clinical life of adhesive-retained facial prosthesis averages about 6 months to 1 year before replacement is needed.…”

Avaliação das propriedades físicas de dois materiais flexíveis de produção nacional para uso em prótese facial

“…Segundo estudos o suor nos primeiros seis meses pode atuar como conservador das propriedades físicas do silicone inclusive aumentando a resistência ao rasgamento (Polyzois et al, 2000;Castro, 2008) Não foram encontrados estudos sobre a aplicação de resinas resilientes na confecção de próteses faciais, seu uso continua sendo recomendado como reembasador em próteses totais, onde mostra excelentes vantagens para o conforto do paciente.…”