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https://repositorio.unichristus.edu.br/jspui/handle/123456789/1370Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | Carvalho, Bruna Marjorie Frota | - |
| dc.contributor.author | Barreto, Antonia Jamile Torres | - |
| dc.date.accessioned | 2022-11-07T19:54:21Z | - |
| dc.date.available | 2022-11-07T19:54:21Z | - |
| dc.date.issued | 2022-06-09 | - |
| dc.identifier.uri | https://repositorio.unichristus.edu.br/jspui/handle/123456789/1370 | - |
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Enhanced osteointegration on tantalum-implanted polyetheretherketone surface with bone-like elastic modulus. Biomaterials, v. 51, p. 173-183, 2015. ZOIDIS, Panagiotis; PAPATHANASIOU, Ioannis; POLYZOIS, Gregory. The use of a modified poly‐ether‐ether‐ketone (PEEK) as an alternative framework material for removable dental prostheses. A clinical report. Journal of Prosthodontics, v. 25, n. 7, p. 580-584, 2016. MOLDOVAN, Ovidiu; RUDOLPH, Heike; LUTHARDT, Ralph G. Clinical performance of removable dental prostheses in the moderately reduced dentition: a systematic literature review. Clinical Oral Investigations, v. 20, n. 7, p. 1435-1447, 2016. LOHITHA, K. et al. Color stability of heat cure acrylic resin subjected to simulated short term immersion in fast acting denture cleansers. Annals of medical and health sciences research, v. 6, n. 5, p. 291-295, 2016. HEIMER, Sina; SCHMIDLIN, Patrick R.; STAWARCZYK, Bogna. Discoloration of PMMA, composite, and PEEK. Clinical oral investigations, v. 21, n. 4, p. 1191-1200, 2017. AL‐THOBITY, Ahmad M. et al. Impact of denture cleansing solution immersion on some properties of different denture base materials: an in vitro study. Journal of Prosthodontics, v. 28, n. 8, p. 913-919, 2019. ALEXAKOU, Elli et al. PEEK high performance polymers: A review of properties and clinical applications in prosthodontics and restorative dentistry. Eur J Prosthodont Restor Dent, v. 27, n. 3, p. 113-21, 2019. PAPATHANASIOU, Ioannis et al. The use of PEEK in digital prosthodontics: A narrative review. BMC Oral Health, v. 20, n. 1, p. 1-11, 2020. | pt_BR |
| dc.description.abstract | Diversas substâncias químicas têm sido utilizadas no processo de desinfecção e higiene de dispositivos à base de polímeros, no entanto, muitas destas substâncias são utilizadas de forma empírica. O objetivo deste estudo foi avaliar as propriedades físicas e mecânicas, através da estabilidade de cor e da rugosidade de superfície de diferentes polímeros, polimetilmetacrilato (PMMA), poliamida e polieteretercetona (PEEK), após imersões em diferentes soluções desinfetantes. Foi confeccionado um total de 105 amostras de cada material (n=15) em formato cilíndrico (15mmx4mm) e os grupos divididos de acordo com o tipo de material: Resina Acrílica Convencional (PMMA), Poliamidas e a Polieteretercetona (PEEK), que foram submetidos à imersão em meios desinfetantes como, Listerine (LI), Cepacol (CE), Corega Tabs (CT), ácido paracético 10% (AP) hipoclorito de sódio 1% (NaOCl), Periogard 0,12% (digluconato de diclorexidina) e água destilada (AD) como controle. Foram simuladas aplicações de 12/12 horas, por 2 semanas, o que equivale a um período de 2 anos. Todas as amostras foram pesadas antes e após a exposição ao tratamento, a fim de analisar a perda de massa. Cinco linhas paralelas (1 mm) foram registradas em cada amostra para medir a rugosidade da superfície (Ra). E estabilidade de cor foi medida por um colorímetro portátil. Os dados foram analisados por foram expressos em forma de média e desvio-padrão, submetidos ao teste de normalidade de Kolmogorov-Srminov e comparados utilizando o teste ANOVA-3-way para medidas repetidas seguido dos pós teste de Bonferroni (p<0,05, SPSS 22.0). Foi observado que em relação a análise de rugosidade de superfície a poliamida demonstrou maior diferença (p<0.001), quando comparada aos demais polímeros, após simulado 1 ano de imersão. Houve diferença significativa na mudança de cor (ΔE) para todos os grupos experimentais mais com maiores alterações no PMMA e poliamida quando tratados com NaClO 1%, cepacol e ácido paracético 10% (p<0.001), comparados ao PEEK. Ocorreu alteração da massa em relação aos tempos de imersões (p<0.05), onde o Corega tabs apresentou maior capacidade de alteração frente aos materiais (p<0.05). Pode-se concluir que o PEEK parece mais estável contra desgaste e descolorações do que o o PMMA e a poliamida. Mais pesquisas e ensaios clínicos são necessários para confirmar tais resultados. | pt_BR |
| dc.language.iso | pt_BR | pt_BR |
| dc.subject | Polieteretercetona. | pt_BR |
| dc.subject | Resina acrílica. . | pt_BR |
| dc.subject | Rugosidade de superfície. | pt_BR |
| dc.title | AVALIAÇÃO DA RUGOSIDADE E ESTABILIDADE DE COR DE DIFERENTES POLÍMEROS APÓS IMERSÕES EM SOLUÇÕES DESINFETANTES | pt_BR |
| dc.type | TCC | pt_BR |
| dc.title.ingles | EVALUATION OF RUGOSITY AND COLOR STABILITY OF DIFFERENT POLYMERS AFTER IMMERSIONS IN DISINFECTANT SOLUTIONS | pt_BR |
| dc.description.resumo_abstract | Several chemical substances have been used in the disinfection and hygiene process of polymer-based devices, however, many of these substances are used empirically. The objective of this study was to evaluate the physical and mechanical properties, through the color stability and surface roughness of different polymers, polymethylmethacrylate (PMMA), polyamide and polyetheretherketone (PEEK), after immersion in different disinfectant solutions. A total of 105 samples of each material (n=15) were made in a cylindrical shape (15mmx4mm) and the groups were divided according to the type of material: Conventional Acrylic Resin (PMMA), Polyamides and Polyetheretherketone (PEEK), which were subjected to immersion in disinfectant media such as Listerine (LI), Cepacol (CE), Corega Tabs (CT), 10% paracetic acid (AP), 1% sodium hypochlorite (NaOCl), 0.12% Periogard (dichlorhexidine digluconate) and distilled water (AD) as a control. Applications of 12/12hours were simulated for 2 weeks, which is equivalent to a period of 2 years. All samples were weighed before and after exposure to the treatment in order to analyze the mass loss. Five parallel lines (1 mm) were recorded on each sample to measure the surface roughness (Ra). And color stability was measured by a handheld colorimeter. Data were analyzed by being expressed as mean and standard deviation, submitted to the Kolmogorov-Srminov normality test and compared using the 3-way ANOVA test for repeated measures followed by the Bonferroni post test (p<0.05 , SPSS 22.0). It was observed that in relation to the surface roughness analysis, polyamide showed a greater difference (p<0.001), when compared to the other polymers, after simulated 1 year of immersion. There was a significant difference in color change (ΔE) for all experimental groups but with greater changes in PMMA and polyamide when treated with 1% NaClO, cepacol and 10% paracetic acid (p<0.001), compared to PEEK. There was a change in the mass in relation to the immersion times (p<0.05), where the Corega tabs showed a greater ability to change compared to the materials (p<0.05). It can be concluded that PEEK appears more stable against wear and discoloration than PMMA and polyamide. More research and clinical trials are needed to confirm these results. | pt_BR |
| Appears in Collections: | Odontologia - Trabalhos de Conclusão de Curso - Campus BENFICA | |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| Barreto, Jamile.pdf | 570.56 kB | Adobe PDF |  View/Open |
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