Estabilidade de Cor de Silicones Para Uso em Prótese Bucomaxilofacial Submetidos ao Suor Humano / Color Stability of Silicones for Use in Maxillofacial Prosthesis Submitted to Human Sweat

2021 ◽  
Vol 7 (8) ◽  
pp. 79879-79895
Author(s):  
Bruna Cristina da Silva Lopes ◽  
Rafael Bronzato Bueno ◽  
William Cristofoletti Custodio ◽  
Ana Paula Terossi de Godoi
2019 ◽  
Vol 8 (6) ◽  
Author(s):  
Gabriella Domingues de Carvalho ◽  
Liz Fernandes de Souza ◽  
Thais Oliveira Ferreira ◽  
Gabriela Bento ◽  
Marcela Filié Haddad

A prótese bucomaxilofacial é uma especialidade da Odontologia que visa restaurar indivíduos com perda de estrutura na região de boca e face. Seu ensino ainda é restrito na maioria dos cursos de Odontologia no Brasil, de modo que os cirurgiões dentistas se formam sem conhecer este ramo tão bonito da reabilitação e sem o domínio de conhecimentos teóricos e técnicos sobre o assunto. Deste modo, o objetivo do presente trabalho foi realizar uma revisão de literatura acerca da especialidade de prótese bucomaxilofacial para guiar os cirurgiões-dentistas a respeito de sua indicação, tipos, materiais utilizados e técnica de confecção.Descritores: Prótese Maxilofacial; Prótese Dentária; Reabilitação.ReferênciasAlfenas ER, Lanza CRM, Barreiros ID, Novaes Junior JB, Mendonça LL. Reabilitação protética do paciente com perda de substância na região de cabeça e pescoço. Arq Odontol. 2011;47(2):28-31.Dos Santos DM, de Caxias FP, Bitencourt SB, Turcio KH, Pesqueira AA, Goiato MC.Oral rehabilitation of patients after maxillectomy. A systematic review. Br J Oral Maxillofac Surg. 2018;56(4):256-66.Gamarra RS, Oliveira JAP, Dib LL. A estética em reabilitação bucomaxilofacial. Rev APCD. 2015;3(1):42-52.de Oliveira FM, Salazar-Gamarra R, Öhman D, Nannmark U, Pecorari V, Dib LL. Quality of life assessment of patients utilizing orbital implant-supported prostheses. Clin Implant Dent Relat Res. 2018;20(4):438-43.Goiato MC, Tabata LF, Archangelo CM, Júnior MM. Uso de implantes ossointegrados associados a sistemas de retenção na reabilitação com próteses bucomaxilofaciais: Revisão de Literatura. Pesq Bras Odontoped Clín Integr. 2007;7(3):231-36.Goiato MC, de Carvalho Dekon SF, de Faria Almeida DA, Sánchez DM, dos Santos DM, Pellizzer EP. Patients' satisfaction after surgical facial reconstruction or after rehabilitation with maxillofacial prosthesis. J Craniofac Surg. 2011;22(2):766-9.Kusterer LEFL, Paraguassú GM, Silva VSM, Sarmento VA. Reabilitação com obturador maxilar após cirurgia oncológica: relato de casos. Rev Cir Traumatol Buco-Maxilo-Fac. 2012;12(4):9-16.Nemli SK, Aydin C, Yilmaz H, Bal BT, Arici YK. Quality of life of patients with implant-retained maxillofacial prostheses: a prospective and retrospective study, J Prosthet Dent. 2013;109(1):44-52.Goiato MC, Pesqueira A.A, Ramos da Silva C, Gennari Filho H, Micheline dos Santos D. Patient satisfaction with maxillofacial prosthesis. Literature review. J Plast Reconstr Aesthet Surg. 2009;62(2):175-80.Simões FG, Reis RC, Dias RB. A especialidade de prótese bucomaxilofacial e sua atuação na Odontologia. Rev Sul Bras Odontol. 2009;6(3):327-31.Aguiar L, Mozzini AR, Lersch E, De Conto F. Obturador palatino: confecção de uma prótese não convencional – relato de caso. Rev Fac Odontol Passo Fundo. 2013;18(1):125-29.Miyashita ER, Mattos BSC, Marafon PG. Sistemas de retenção em prótese obturadora cirúrgica para pacientes maxilectomizados. Pesq Bras Odontoped Clín Integr. 2011;11(2):263-68.Esteves AJ, Costa FCM, Haddad MF. Prosthetic rehabilitation of oncological patient: case report. Arch Health Invest. 2016;5(6): 291-97.Silva DP, Almeida FC, Vaccarezza GF, Brandão TB, Cazal C, Caroli A et al. Reabilitação protética de pacientes maxilectomizados. Uma contribuição da odontologia e um convite à reflexão. Pesq Bras Odontoped Clín Integr. 2004;4(2):125-30.Rezende JRV. Fundamentos da prótese buco-maxilo-facial. São Paulo: Savier, 1997;1:1-10.Tucci R, Antonio LFM, de Carvalhosa AA, Catro PHS, Nunes FD, Pinto Junior DSl. Central mucoepidermoid carcinoma: report of a case with 11 years’ evolution and peculiar macroscopical and clinical characteristics. Med Oral Patol Oral Cir Bucal. 2009;14(6):283-86.Sperb LCM, Neves ACC, Rode SM. Considerações sobre prótese ocular: Sua importância na odontologia atual. RGO. 2001;49(4):202-24.Aquino LMM, Oliveira M, Martins APVB, Barbosa CMR. Técnicas de moldagem da máscara facial. Rev Odontol UNESP. 2012;41(6):438-41.Neves ACC, Murgo DA, Campoy CD, Coas VR. Prótese facial combinada. RGO. 2005;53(1):1-4.Sousa AVB, Arriaga MH, Llorca FA, Henar TEl. Prótesis oculo-palpebral. A propósito de un caso clínico. RCOE. 2003;8(5):553-61.Filié Haddad M, Coelho Goiato M, Micheline Dos Santos D, Moreno A, Filipe D'almeida N, Alves Pesqueira A. Color stability of maxillofacial silicone with nanoparticle pigment and opacifier submitted to disinfection and artificial aging. J Biomed Opt. 2011;16(9):095004.Abu-Serriah M, McGowan D, Moos K, Bagg J. Extra-oral craniofacial endosseous implants and radiotherapy. Int J Oral maxillofac Surg. 2003;32(6):585-92.Silva RJ, Seixas ZA. Materiais e métodos de higienização para próteses removíveis. Int J Dent. 2008;7(2):125-32.Antunes AA, Carvalho RWF, Lucas Neto A, Loretto NRM, Silva EDO. Utilização de implantes osseointegrados para retenção de próteses buco-maxilo-faciais: revisão de literatura. Rev Cir Traumatol Buco-Maxilo-Fac. 2008;8(2):9-14.Haddad MF, Goiato MC, Santos DM, Crepaldi Nde M, Pesqueira AA, Bannwart LC. Bond strength between acrylic resin and maxillofacial silicone. J Appl Oral Sci. 2012;20(6):649-54.


TAPPI Journal ◽  
2011 ◽  
Vol 10 (9) ◽  
pp. 17-23 ◽  
Author(s):  
ANNE RUTANEN ◽  
MARTTI TOIVAKKA

Coating color stability, as defined by changes in its solid particle fraction, is important for runnability, quality, and costs of a paper coating operation. This study sought to determine whether the size or density of particles is important in size segregation in a pigment coating process. We used a laboratory coater to study changes in coating color composition during coating operations. The results suggest that size segregation occurs for high and low density particles. Regardless of the particle density, the fine particle size fraction (<0.2 μm) was the most prone for depletion, causing an increase in the average size of the particles. Strong interactions between the fine particles and other components also were associated with a low depletion tendency of fine particles. A stable process and improved efficiency of fine particles and binders can be achieved by controlling the depletion of fine particles.


2014 ◽  
Vol 1 (1) ◽  
pp. 24-34
Author(s):  
Alireza K. ◽  
Hossein Ahmadi ◽  
Mohsen Mohammadi

Lubricants and leather dressings are the most common treatments of dry and water logged historical leathers. Color change has a great importance during the time and treatment process, due to visual and aesthetic values of historic leather relics. Polyethylene glycol (PEG) and silicone oil (SiO) are frequently used leather dressings in the conservation procedures. Therefore, color stability of treated leathers with PEG and SiO were investigated before and after heat accelerated aging. Moreover, application of ascorbic acid was evaluated as an antioxidant additive for PEG (PEG+AA).Color change after treatment and aging were studied by colorimetry technique in the CIE *L*a*b system. Results indicated to severe color alteration in PEG treated and aged leathers with or without ascorbic acid. Whereas, SiO treated samples showed better stability and minimum color shift after aging. Silicone oil was characterized as the best dressing for historical leathers with compared to PEG and PEG+AA, due to its high stability and aesthetical properties.


2014 ◽  
Vol 1 (2) ◽  
pp. 36-41
Author(s):  
Erica Crastechini ◽  
Paula de Siqueira Barbosa ◽  
Heleine Maria Chagas Rego ◽  
Priscila Holleben ◽  
Carlos Rocha Gomes Torres ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 297
Author(s):  
Ana Belén García ◽  
Eleonora Longo ◽  
Mª Carmen Murillo ◽  
Ruperto Bermejo

Nowadays, there is a growing interest in finding new coloring molecules of natural origin that can increase and diversify the offer of natural food dyes already present in the market. In the present work, a B-phycoerythrin extract from the microalgae Porphyridium cruentum was tested as a food colorant in milk-based products. Using spectroscopy and colorimetry, the extract was characterized and gave evidence of good properties and good stability in the pH range between 4.0 and 9.0. Coloring studies were conducted to demonstrate that samples carrying the pink extract could be used for simulating the pink color of marketed milk-based products. The staining factors, representing the amount of pink protein to be added to reproduce the color of strawberry commercial products, ranged between 1.6 mg/L and 49.5 mg/L, being sufficiently low in all samples. Additionally, color stability during a short period of cold storage was studied: it demonstrated that the three tested types of dairy products remained stable throughout the 11-day analysis period with no significant changes. These results prove the potential of the B-phycoerythrin extract as a natural colorant and alternative ingredient to synthetic coloring molecules.


2021 ◽  
Vol 27 ◽  
pp. 100180
Author(s):  
A.M. Serpa Guerra ◽  
C. Gómez Hoyos ◽  
J.A. Velásquez-Cock ◽  
P. Gañán Rojo ◽  
A. Eceiza ◽  
...  

2021 ◽  
Vol 13 (36) ◽  
pp. 4169-4173
Author(s):  
Samuel M. Mugo ◽  
Jonathan Alberkant ◽  
Nina Bernstein ◽  
Olena V. Zenkina

An inexpensive flexible PDMS@CNC/CNT@aptamer sensor for facile detection of cortisol in human sweat with capacity for use as wearable device.


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