Academic literature on the topic 'Dental materials Denture Liners'
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Journal articles on the topic "Dental materials Denture Liners"
Ferreira, I. D. L., and I. S. Oliveira. "Efetividade de Materiais Reembasadores em Prótese Total: uma Revisão de Propriedades." Journal of Health Sciences 19, no. 5 (February 23, 2018): 33. http://dx.doi.org/10.17921/2447-8938.2017v19n5p33.
Full textRahal, Juliana Saab, Bruna Jussara Constantino Locks, Marcelo Feraz Mesquita, Guilherme Elias Pessanha Henriques, and Mauro Antônio Arruda Nóbilo. "Biofilm formation on complete denture liners." Journal of Research in Dentistry 3, no. 1 (September 14, 2015): 583. http://dx.doi.org/10.19177/jrd.v3e12015583-591.
Full textOliveira, Luciana Valadares, Marcelo Ferraz Mesquita, Guilherme Elias Pessanha Henriques, Rafael Leonardo Xediek Consani, and Wagner Sotero Fragoso. "The compatibility of denture cleansers and resilient liners." Journal of Applied Oral Science 14, no. 4 (August 2006): 286–90. http://dx.doi.org/10.1590/s1678-77572006000400014.
Full textYankova, Mariana, Todor Peev, and Bozhidar Yordanov. "BASIC PROBLEMS WITH THE USE OF RESILIENT DENTURE LINING MATERIALS: LITERATURE REVIEW." Journal of IMAB - Annual Proceeding (Scientific Papers) 27, no. 2 (May 11, 2021): 3723–30. http://dx.doi.org/10.5272/jimab.2021272.3723.
Full textKreve, Simone, and Andréa C. Dos Reis. "Denture Liners: A Systematic Review Relative to Adhesion and Mechanical Properties." Scientific World Journal 2019 (March 3, 2019): 1–11. http://dx.doi.org/10.1155/2019/6913080.
Full textStrajnic, Ljiljana, Miodrag Djokic, and Predrag Vucinic. "Contemporary methods and mobile denture cleansers and theirs significance for older population." Medical review 64, no. 9-10 (2011): 497–502. http://dx.doi.org/10.2298/mpns1110497s.
Full textBalos, Sebastian, Tatjana Puskar, Michal Potran, Bojana Milekic, Daniela Djurovic Koprivica, Jovana Laban Terzija, and Ivana Gusic. "Modulus, Strength and Cytotoxicity of PMMA-Silica Nanocomposites." Coatings 10, no. 6 (June 23, 2020): 583. http://dx.doi.org/10.3390/coatings10060583.
Full textNicholson, J. W. "Glass-ionomers in medicine and dentistry." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 212, no. 2 (February 1, 1998): 121–26. http://dx.doi.org/10.1243/0954411981533890.
Full textHussein, Farouk Ahmed. "Advances in Soft Denture Liners: An Update." Journal of Contemporary Dental Practice 16, no. 4 (2015): 314–18. http://dx.doi.org/10.5005/jp-journals-10024-1682.
Full textDjordjevic, Maja, Branislav Karadjic, and Predrag Jovanic. "Analysis of adhesion characteristics of liner dental materials." Chemical Industry and Chemical Engineering Quarterly 19, no. 2 (2013): 165–72. http://dx.doi.org/10.2298/ciceq120309051d.
Full textDissertations / Theses on the topic "Dental materials Denture Liners"
Sanchez, Jose Luiz Lopes. "Estudo "in vitro" da resistencia da união entre resina acrilica e materiais reembasadores resilientes submetidos ou não a termociclagem." [s.n.], 1999. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289909.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Este trabalho teve como objetivo comparar a resistência da união entre bases resilientes (Dentuflex, Ufi-Gel e Eversoft) e resina acrílica (QC-20), submetidas ou não à termociclagem. Foram utilizadas 60 amostras divididas em 6 grupos de variáveis, com 10 repetições cada. Para a confecção das amostras, foram utilizadas matrizes metálicas incluídas em mufla, cujo molde impresso na silicona de condensação e no gesso foi preenchido com resina acrílica. Após polimerizadas, as amostras foram unidas duas a duas em seu eixo longitudinal por uma base resiliente. Em seguida, metade das amostras foi levada ao termociclador MCT2 AMM Instrumental onde foram realizados 3000 ciclos de 1 minuto em água à 5° C '+ ou -'1° C) e 1 minuto em água a 65° C ( '+ ou -'1°C). A outra metade das amostras foi armazenada em água à 37° C durante 24 horas. Após cada período, as amostras foram submetidas a um tracionamento no equipamento EMIC-DL500MF com velocidade de 5mm/minuto. Os dados obtidos foram submetidos à análise estatística pelo Teste de Tukey, ao nível e 5% de probabilidade e as amostras foram analisadas quanto ao tipo de falha ocorrida. O material Dentuflex apresentou os maiores valores de resistência à tração, independentemente do tratamento recebido, apresentando diferença estatística em relação aos demais materiais. O material Eversoft quando termo ciciado apresentou superioridade estatística em relação ao material Ufi-Gel. Para os materiais Dentuflex e Eversoft, a termociclagem aumentou os valores de resistência à tração, apresentando diferença estatística em relação ao controle, entretanto, para o material Ufi-Gel, o comportamento não foi alterado
Abstract: The purpose of this study was to compare the tensile bond strength between soft-liners (Dentuflex, Ufi-Gel and Eversoft) and the acrylic resin (QC-20), submitted or not to the thermal cycling (of 1 minute in water at 5°C and 1 minute in water at 65°C). Twenty samples were made of each soft-liner. Half of each group received thermal cycling, and the other half, did not. For making the samples, metal matrixes were invested in flasks, the molds was packed with acrylic resin and a spacer was used to divided tbe samples in the middle. After the resin curing, the spacer was taken out and the acrylic resins were joint with soft-liner material. Half of the samples were submitted to 3.000 thermal cycles, and the other half, were not. Afterwards, the samples were submitted to the tensile bond strength test in a universal testing machine (EMIC-DL500MF) with a crosshead speed of 5 mm/min. The results, after Tukey test at 5% of probability, showed that the highest values were obtained to the Dentuflex (3:32 MPa), and the lowest values were observed with Ufi-Gel (0.18 MPa), both when submitted to the thermal cycling. According to the results it was observed that: the Dentuflex material presented the highest values of tensile bond strength, independent of the received treatment, presenting statistical differences related to the Eversoft and Ufi-Gel. The Eversoft material when submitted to the thermal cycling presented values statistically higher than the Ufi Gel. For the Dentuflex and Eversoft materials, the thermal cycling increased the tensile bond strength values presenting statistical differences related to the no cycled, and for the Ufi-Gel the behavior was not altered.
Mestrado
Protese Dental
Mestre em Odontologia
Perez, Luciano Elias da Cruz [UNESP]. "Efeito de tratamentos da superfície de união e materiais reembasadores na resistência ao impacto de resina para base de prótese." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/97294.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Este estudo avaliou o efeito de tratamentos da superfície de união e de materiais reembasadores na resistência ao impacto de uma resina para base de prótese. Corpos-de-prova foram confeccionados com a resina Lucitone 550 (60x6x2 mm) e reembasados (2 mm) com o mesmo material (L) ou com as resinas para reembasamento imediato Tokuso Rebase (TR) e Ufi Gel Hard (UH). Para o material L, as superfícies de união permaneceram sem tratamento (L/L/ST) ou foram tratadas com o monômero da resina L (metil metacrilato) for 180 segundos (L/L/M). Quando o reembasamento foi realizado com os reembasadores imediatos, os tratamentos de superfície consistiram de aplicação dos agentes adesivos fornecidos pelos fabricantes (L/TR/A - diclorometano e L/UH/A - diclorometano e 2-hidroxietil metacrilato) ou tratamento com o monômero da resina L seguido pelos adesivos (L/TR/MA e L/UH/MA). Corpos-de-prova do material L intacto (60x6x4 mm) também foram confeccionados para se determinar a resistência ao impacto dessa resina. Um total de 140 corpos-de-prova foi confeccionado, sendo 20 para cada condição experimental. Para metade dos corpos-de-prova, os entalhes foram realizados na largura, na superfície correspondente ao material reembasador, com profundidade de 0,8 mm, permanecendo 3,2 mm de material intacto (E1). Para os corpos-de-prova restantes, o entalhe foi realizado na espessura, envolvendo tanto o material reembasador como a resina de base, com profundidade de 1,2 mm (E2), permanecendo 4,8 mm de material intacto. Todos os entalhes, em forma de V, foram realizados na área central do comprimento dos corpos-de-prova. O teste utilizado foi do tipo Charpy, com pêndulo de 0,5 J e distância de 50 mm entre os suportes. Os resultados (kJ/ m2) de cada entalhe foram analisados, separadamente, utilizando-se ANOVA e teste de...
This study evaluated the effect of surface treatments and reline materials on the impact strength of a denture base acrylic resin. Specimens were made using Lucitone 550 resin (60x6x2 mm) and relined (2 mm) with the same material (L) or with the hard chair-side reline resins Tokuso Rebase (TR) and Ufi Gel Hard (UH). For material L, the bond surfaces remained untreated (L/L/ST) or were wetted with resin L monomer (methyl methacrylate) for 180 seconds (L/L/M). When the relining was made with the hard reline materials, the surface treatments consisted of coating with the bonding agents supplied by the manufacturers (L/TR/A - dichloromethane and L/UH/A - dichloromethane and 2-hydroxyethyl methacrylate) or wetting with the resin L monomer followed by bonding agents application (L/TR/MA and L/UH/MA). Material L intact specimens (60x6x4 mm) were also made to determine the impact strength of the bulk resin. A total of 140 specimens were made, 20 for each experimental condition. Half of the specimens were notched across the width to a depth of 0.8 mm, leaving an effective depth under notch of 3.2 mm (E1). For the remaining specimens, the notch was cut across the thickness to a depth of 1.2 mm (E2) leaving an effective depth under notch of 4.8 mm. All the V-notches were machined at the midpoint of the length of the specimens. Impact tests were carried out on a Charpy type pendulum impact tester (0.5 J pendulum; distance between supporting points - 50 mm). Results (kJ/ m2) from each notch depth were analyzed separately using one-way ANOVA and Tukey's HSD tests (a = .05). No significant differences were noted among the mean impact values of L (1.39 kJ/ m2), L/L/ST (1.28 kJ/ m2) and L/L/M (1.20 kJ/ m2) specimens with the E1 notch (P>.05). Similar results were observed (P>.05) for the specimens with the E2 notch (L - 1.00 kJ/ m2; L/L/ST - 0.93 kJ/ m2; ...(Complete abstract, click electronic access below)
Perez, Luciano Elias da Cruz. "Efeito de tratamentos da superfície de união e materiais reembasadores na resistência ao impacto de resina para base de prótese /." Araraquara : [s.n.], 2005. http://hdl.handle.net/11449/97294.
Full textBanca: Ana Cláudia Pavarina
Banca: Luiz Antonio Pessan
Resumo: Este estudo avaliou o efeito de tratamentos da superfície de união e de materiais reembasadores na resistência ao impacto de uma resina para base de prótese. Corpos-de-prova foram confeccionados com a resina Lucitone 550 (60x6x2 mm) e reembasados (2 mm) com o mesmo material (L) ou com as resinas para reembasamento imediato Tokuso Rebase (TR) e Ufi Gel Hard (UH). Para o material L, as superfícies de união permaneceram sem tratamento (L/L/ST) ou foram tratadas com o monômero da resina L (metil metacrilato) for 180 segundos (L/L/M). Quando o reembasamento foi realizado com os reembasadores imediatos, os tratamentos de superfície consistiram de aplicação dos agentes adesivos fornecidos pelos fabricantes (L/TR/A - diclorometano e L/UH/A - diclorometano e 2-hidroxietil metacrilato) ou tratamento com o monômero da resina L seguido pelos adesivos (L/TR/MA e L/UH/MA). Corpos-de-prova do material L intacto (60x6x4 mm) também foram confeccionados para se determinar a resistência ao impacto dessa resina. Um total de 140 corpos-de-prova foi confeccionado, sendo 20 para cada condição experimental. Para metade dos corpos-de-prova, os entalhes foram realizados na largura, na superfície correspondente ao material reembasador, com profundidade de 0,8 mm, permanecendo 3,2 mm de material intacto (E1). Para os corpos-de-prova restantes, o entalhe foi realizado na espessura, envolvendo tanto o material reembasador como a resina de base, com profundidade de 1,2 mm (E2), permanecendo 4,8 mm de material intacto. Todos os entalhes, em forma de V, foram realizados na área central do comprimento dos corpos-de-prova. O teste utilizado foi do tipo Charpy, com pêndulo de 0,5 J e distância de 50 mm entre os suportes. Os resultados (kJ/ m2) de cada entalhe foram analisados, separadamente, utilizando-se ANOVA e teste de ...(Resumo completo, clicar acesso eletrônico abaixo)
Abstract: This study evaluated the effect of surface treatments and reline materials on the impact strength of a denture base acrylic resin. Specimens were made using Lucitone 550 resin (60x6x2 mm) and relined (2 mm) with the same material (L) or with the hard chair-side reline resins Tokuso Rebase (TR) and Ufi Gel Hard (UH). For material L, the bond surfaces remained untreated (L/L/ST) or were wetted with resin L monomer (methyl methacrylate) for 180 seconds (L/L/M). When the relining was made with the hard reline materials, the surface treatments consisted of coating with the bonding agents supplied by the manufacturers (L/TR/A - dichloromethane and L/UH/A - dichloromethane and 2-hydroxyethyl methacrylate) or wetting with the resin L monomer followed by bonding agents application (L/TR/MA and L/UH/MA). Material L intact specimens (60x6x4 mm) were also made to determine the impact strength of the bulk resin. A total of 140 specimens were made, 20 for each experimental condition. Half of the specimens were notched across the width to a depth of 0.8 mm, leaving an effective depth under notch of 3.2 mm (E1). For the remaining specimens, the notch was cut across the thickness to a depth of 1.2 mm (E2) leaving an effective depth under notch of 4.8 mm. All the V-notches were machined at the midpoint of the length of the specimens. Impact tests were carried out on a Charpy type pendulum impact tester (0.5 J pendulum; distance between supporting points - 50 mm). Results (kJ/ m2) from each notch depth were analyzed separately using one-way ANOVA and Tukey's HSD tests (a = .05). No significant differences were noted among the mean impact values of L (1.39 kJ/ m2), L/L/ST (1.28 kJ/ m2) and L/L/M (1.20 kJ/ m2) specimens with the E1 notch (P>.05). Similar results were observed (P>.05) for the specimens with the E2 notch (L - 1.00 kJ/ m2; L/L/ST - 0.93 kJ/ m2; ...(Complete abstract, click electronic access below)
Mestre
龍英奇 and Ying-kei Christie Lung. "Residual monomer in denture base acrylic." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B42577743.
Full textLung, Ying-kei Christie. "Residual monomer in denture base acrylic." Click to view the E-thesis via HKUTO, 2003. http://sunzi.lib.hku.hk/hkuto/record/B42577743.
Full textTarigan, Slamat. "The assessment of bonding between synthetic tooth materials and denture base resins." Thesis, University of Manchester, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329067.
Full textSantos, Mateus Bertolini Fernandes dos 1985. "Avaliação dos elementos finitos de tensões no tecido ósseo peri-implantar durante a osseointegração." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288549.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Forças aplicadas por próteses totais a implantes submersos durante o período deosseointegração podem, em alguns casos, levar ao insucesso clínico. Até o momento não existe trabalho na literatura que quantifique e/ou verifique a distribuição das forças mastigatórias em implantes submersos durante a ação mastigatória de próteses totais convencionais usadas provisoriamente durante o período de osseointegração. Dessa forma, neste trabalho foram avaliadas as tensões geradas no tecido ósseo subjacente a implantes recém-colocados, em diferentes situações, durante a ação mastigatória em próteses totais convencionais provisórias inferiores, por meio da metodologia dos elementos finitos. Com software de modelagem 3-D (SolidWorks 2010, SolidWorks Corp., Concord, Massachusetts, EUA) foram confeccionados modelos tridimensionais de mandíbula simulando diferentes situações clínicas: (1) implantes submersos, próteses totais convencionais e próteses reembasadas com diferentes materiais reembasadores macios; (2) diferentes níveis de altura de exposição dos cicatrizadores (submerso, nível gengival, 1,5 mm exposto no meio bucal); e (3) diferentes espessuras e comparação entre reembasamento na base da prótese inteira ou somente na região dos implantes. As análises foram realizadas em software específico (ANSYS Workbench 12, Ansys Inc., Canonsburg, Pennsylvania, EUA) e para cada modelo foram simuladas duas situações, com aplicação de carga mastigatória em canino inferior direito (35N) e primeiro molar inferior direito (50N). Todas as análises foram realizadas em tensão máxima principal, em MPa. Os resultados obtidos demonstraram que o reembasamento da prótese com material macio reduziu a concentração de tensões no tecido ósseo peri-implantar, sendo a concentração de tensão diretamente relacionada com a maciez do material. Os cicatrizadores submersos foram os que apresentaram menor valor de concentração de tensões. A espessura e área de reembasamento estão relacionadas à transmissão de tensões ao osso peri-implantar, quando o reembasamento da região dos implantes com espessura de 3 mm apresentou melhores resultados. Comparando-se os resultados mostrados nas diferentes simulações conclui-se que a situação que promoveu menor concentração de tensões no osso peri-implantar foi com implantes submersos, reembasamento realizado somente na região dos implantes, espessura de 3 mm e material macio.
Abstract: Forces applied to submerged implants from complete dentures during the osseointegration period can, in some cases, lead to clinical failure. To date there is no study in the literaturethat quantifies and/or verifies the stress distribution of occlusal forces in submerged implants during the masticatory function of conventional complete dentures used on an interim basis during the period of osseointegration. Thus, this study evaluated the stresses in the bone adjacent to newly placed implants during the masticatory function in conventional complete dentures through the finite element methodology. Using a 3-D modeling software (SolidWorks 2010, SolidWorks Corp., Concord, Massachussets, EUA) it were made tridimensional models of a mandible simulating different clinical situations: (1) submerged implants, conventional complete dentures and relined ones with different soft liner materials; (2) different height levels of exposure to the oral environment (submerged, gingival level and 1.5mm of exposure to the oral environment); and (3) different thickness and comparation between relining the entire base or only in the region near the implants. The analysis were made in a specific software (ANSYS Workbench 12, Ansys Inc., Canonsburg, Pennsylvania, EUA) and for each model it were simulated two situations with masticatory load in inferior right canine (35N) and inferior right first molar (50N). All the analysis were made in maximum principal stress, in MPa. The obtained results showed that relined dentures with soft liner material reduced the stress concentration in the peri-implant bone tissue, being the stress concentration directly related to the softness of the material. Submerged implants presented the lowest values of stress concentration in the peri-implant bone tissue. The thickness and the area of reline are related to the transmission of stress to the peri-implant bone tissue, when relining the denture only in the region of the implants with a 3-mm thick layer of soft liner material presented better results. Comparing the results obtained from the different simulations it is possible to conclude that the situation which promoted fewer stress concentration in the peri-implant bone was with submerged implants, relining made only in the implants region, thicker layer (3 mm) of reline and softer material.
Doutorado
Protese Dental
Doutor em Clínica Odontológica
Latief, Abduraghman. "Sorption and solubility of a denture base acrylic." Thesis, Cape Peninsula University of Technology, 2012. http://hdl.handle.net/20.500.11838/1533.
Full textStatement of problem It is well documented that water sorption and water solubility by auto-polymerizing resins have a negative impact on their physical properties and may lead to harmful tissue reactions. The presence of residual monomer is often identified as the main cause for adverse tissue reactions. To optimize the polymerization reaction, the use of the proper powder/liquid ratio is recommended in the fabrication of a dental appliance. It is also recommended that a dental appliance should be soaked in water for at least 24 hours before delivery to a patient, in order to reduce the possible adverse effect. For auto-polymerizing resins, associated with higher residual monomer levels than heat-cured resins, soaking the appliance at elevated temperatures (65ºC for 60 minutes), would reduce the residual monomer content more efficiently than at room temperature. This requires additional processing conditions from the technician or dentist. Changing the powder/liquid ratios, deliberately or not, may modify the residual monomer content of the final product. A relationship exists between the levels of residual monomer and water sorption. Also, residual monomer leaching into the oral fluids may lead to adverse effects such as, oral tissue irritation or a delayed hypersensitivity reaction. Aim of the study The aim of this study was to evaluate the effect of different powder/liquid ratios and different water temperatures on the levels of sorption and solubility of an auto-polymerizing resin material used for denture bases. The null-hypothesis tested was that there is no difference in sorption and solubility among groups of specimens made from an auto-polymerizing resin material soaked in water at different temperatures and/or fabricated with different powder/liquid ratios. Material and methods Specimens were made from cold-cure pour-type denture base resin (Type 2, Class 2) using different powder/liquid ratios and soaked at different soaking temperatures. One group of specimens fabricated with the manufacturer’s recommended powder/liquid ratio and soaked in water at 37ºC, served as the control group for both experiments. Custom-made stainless steel moulds were used to fabricate resin disks, with a diameter of 50mm and a thickness of 0.5mm. For the temperature-controlled experiment, identical specimens were prepared and stored in distilled water at 37ºC; 45ºC; 55ºC and 67ºC. For the ratio-controlled experiment, the ratios were increased incrementally for each group, starting with a 10% increase, followed by a 15%; 20% and 25% increase in monomer. Water sorption and solubility were tested in accordance with ISO Standard 1567 (1999). Specimens were weighed before and after water immersion, and desiccation. Water sorption and solubility were calculated using the difference in wet and dry mass and the volume of the specimens. The water sorption and solubility results were analyzed by means of analysis of variance. For multiple comparisons, Bonferroni simultaneous confidence intervals (α=0.05) were applied. Results For the ratio-controlled experiment, water sorption mean values varied from 24.148 μg/mm3 to 25.1333 μg/mm3. Statistically significant differences in mean values were found between the following groups: 0%-10%; 0%-15%; 0%-25%; 10%-20%; 15%-20% and 20%-25% ratio groups (P<.0001). Water solubility mean values varied from 0.616μg/mm3 to 0.932μg/mm3. Statistically significant differences in mean values were found between the following groups: 0%-15%; 0%-20%; 0%-25% and 10%-25% and 20%-25% ratio groups (P<.0001). For the temperature-controlled experiment, water sorption mean values varied from 24.185μg/mm3 to 26.434μg/mm3. Statistically significant differences in mean values were found between the following groups: 37ºC-45ºC; 37ºC-55ºC; 37ºC-67ºC; 45ºC-67ºC and 55ºC-67ºC temperature-controlled experiments (P<.0001). Water solubility mean values, for the same experimental groups, varied from 0.616μg/mm3 to 2.752μg/mm3. Statistically significant differences in mean values were found among all the 6 pairs of groups (P<.0001). Despite statistical differences, the water sorption and water solubility values of the tested resin for both experiments and all groups were within the ISO Standard 1567 (1999) specification limits. Conclusion For the ratio-controlled experiment, there was an inverse relationship between the mean sorption and solubility values with an increase in liquid in the mixture: low water sorption levels are associated with high solubility levels. The lower water sorption and higher solubility results for more fluid mixtures could be related to initial and residual high monomer content characteristic of auto-polymerizing materials. These higher levels of free monomer are consequently released upon immersion in water; hence the higher water solubility levels. For the temperature-controlled experiment, a higher soaking temperature resulted in an increase in water solubility levels. The higher solubility levels could be attributed to the higher soaking temperatures causing higher or faster monomer diffusion from the resin material. Except for the 67ºC group, sorption is also lower with higher temperatures. It may be assumed that an additional polymerization process takes place and a subsequent more inaccessible polymer matrix is produced. For the 67ºC group, thermal expansion may explain the higher sorption level. Clinical Implications In terms of the sorption and solubility results, this auto-polymerizing pour-type resin may be used as a denture base resin. Even though statistical differences were demonstrated, the material satisfies the ISO 1567 (1999) requirements not only for auto-polymerizing but also for heat-polymerizing resins. Therefore, within limits, the mixture may be prepared more fluidly in order to improve flow of the material, without negatively affecting its sorption and solubility properties. Because solubility is higher at higher soaking temperatures, this property can be used to minimize monomer content of the appliance. Therefore, it is recommended that the dental appliance be soaked in warm water, below 67ºC, prior to delivery to the patient.
Hermann, Caio. "Efeito da escovação mecanica e da termociclagem sobre dureza e rugosidade superficiais de reembasadores resilientes." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289925.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Este trabalho teve como objetivo avaliar o efeito da escovação mecânica e termociclagem sobre dureza e rugosidade superficiais de três materiais reembasadores resilientes considerados definitivos, dois à base de silicone, um auto (Sofreliner MS) e outro termopolimerizável (Molloplast-B), além de um à base de resina acrílica autopolimerizável (Dentuflex). Para a confecção das amostras, foram utilizadas matrizes de silicone polimerizado por reação de condensação incluídas em muflas, obtendo um molde impresso no gesso posteriormente preenchido com os materiais resilientes. Foram confeccionadas 60 amostras, submetidas à leitura de rugosidade superficial num rugosímetro SURFCORDER SE 1700 (Kosaka Laboratory) e à leitura de dureza num durômetro Shore A (GS ¿ 709 Teclock, Osaka, Japão). Em seguida as amostras foram separadas em dois grupos, onde metade foi submetida ao ensaio de termociclagem numa máquina MSCT ¿ 3 PLUS regulada em 2.000 ciclos com banhos alternados de 60 segundos a 5±1oC e 55±1oC e a outra metade ao ensaio de escovação mecânica numa máquina MSEt, seguida de termociclagem. O ensaio de escovação foi executado sob carga estática de 200 g, com movimentos lineares, totalizando 30.000 ciclos, onde uma solução de dentifrício contendo água era liberada a cada 1 minuto sobre as amostras. Após os ensaios, foram executadas novas leituras de dureza e rugosidade superficial. Os valores obtidos foram submetidos à análise de variância em parcelas subdivididas no tempo, seguida do teste de Tukey em nível de 5% de significância. O material Dentuflex apresentou os maiores valores médios de rugosidade e dureza iniciais, seguidos do Molloplast-B e Sofreliner MS. Após termociclagem, os materiais Dentuflex e Sofreliner MS apresentaram aumento estatisticamente significante da dureza. Após escovação, o material Dentulfex apresentou diminuição nos valores de rugosidade e o Sofreliner MS aumento, ambos estatisticamente significantes. Após a escovação seguida de termociclagem, todos os materiais apresentaram valores de rugosidade estatisticamente semelhantes entre si, provavelmente devido ao polimento do material Dentuflex, abrasão do Sofreliner MS e preservação das características do Molloplast-B
Abstract: The aim of this study was to evaluate the effect of mechanical brushing and thermocycling on hardness and roughness of three resilient definitive lining materials: 1) auto (Sofreliner MS), 2) heat-polymerized (Molloplast-B) silicone bases; and 3) auto-polymerized plasticized acrylic resin (Dentuflex). To prepare the samples, silicone rubber matrixes were made and placed in a flask to obtain a cast pressed mold, and then filled with resilient lining materials, handled according to the manufacturer¿s directions. All samples were submitted to surface roughness readings in a roughness readings machine (SURFCORDER SE 1700 ¿ Kosaka Laboratory) and hardness readings in a Shore A durometer (GS ¿ 709 Teclock, Osaka, Japan). After the readings, the samples were assigned into 6 groups of 10 each, half of which were submitted to thermocycling treatment in a thermal cycler machine (MSCT ¿ 3 PLUS) for 2.000 cycles at temperatures ranging from 5±1oC to 55±1oC and a 60-second dwell time. The other half was submitted to a mechanical brushing simulation in an MSEt brushing machine followed by thermocycling. The samples were submitted to 30.000 strokes with linear brushing movements, under a 200 g static load pressure. Toothpaste solution was injected every one-minute break. Then new readings of hardness and roughness were done, and the values were submitted to variance analysis test followed by Tukey test, with 5% of significance. Dentuflex showed the highest initial values for both roughness and hardness, followed by Molloplast-B and Sofreliner MS. After thermocycling, Dentuflex and Sofreliner-MS showed a statistically significant increase in hardness values. After mechanical brushing, Dentuflex showed a decrease and Sofreliner MS an increase in roughness values. After mechanical brushing followed by thermocycling, all materials showed similar roughness values (statistically significant), probably due to the Dentuflex polished surface, the Sofreliner MS abrasion and the remained features of the Molloplast-B
Mestrado
Protese Dental
Mestre em Clínica Odontológica
Oliveira, Luciana Valadares. "Efeito da escovação mecanica e de agentes quimicos de limpeza de proteses sobre as caracteristicas superficiais de materiais reembasadores resilientes." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289926.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: O objetivo deste trabalho foi avaliar o efeito da escovação mecânica e de agentes de limpeza sobre as características superficiais de materiais reembasadores resilientes. Foram utilizados os materiais Luci Sof (Dentsply), Molloplast-B (Dentax) e Sofreliner (Tokuyama), os agentes de limpeza Hipoclorito de Sódio a 0,5% (Medicinallis-Fármacia de Manipulação-SP-BR) e Efferdent (Warner-Lamber Co-EUA), a escova dental extra macia Johnson & Johnson Reach Professional (Johnson & Johnson Industrial LTDA.) e dentifrício Sorriso Dentes Brancos (Kolynos do Brasil). Foram confeccionadas 30 amostras de cada material, a partir da moldagem do dispositivo porta matriz da máquina de ensaio de escovação mecânica, com 25mm de comprimento X 14mm de largura X 3mm de espessura. Dez amostras de cada material foram submetidas à escovação mecânica e 20 imersas em agente de limpeza. A escovação mecânica foi realizada na máquina MSEt (Máquina de Simulação de Escovação), com velocidade de 5 movimentos por segundo (20.000 ciclos). Foram utilizados 2 agentes de limpeza: 1) Hipoclorito de Sódio a 0,5% a 37 + 1ºC, durante 20 minutos; 2) Efferdent, a 37 + 1ºC, durante 15 minutos. Após as imersões, as amostras foram lavadas e imersas em água destilada, a 37 ± 1ºC, pelo período restante das 24 h. Esse processo foi repetido 8 vezes por dia, durante 90 dias (720 ciclos). A rugosidade superficial, dureza Shore A e observação em microscópio eletrônico de varredura foram avaliadas antes e após os métodos de higienização. A rugosidade foi avaliada em rugosímetro Surfcorder SE 1700 (Kosaka ¿ Laboratory Ltda.); o ensaio de dureza Shore A em durômetro modelo GS-709 (Teclock-Japão), com aplicação de carga de 10N durante 1 segundo; a microscopia eletrônica de varredura em microscópio modelo JSM 5600 PV (JEOL-Japão), onde foi observada a morfologia superficial de amostras representativas de cada tratamento. Os resultados obtidos foram submetidos aos Testes de Wilcoxon-Mann-Whitney e de Kruskal-Wallis (5%). A escovação aumentou significantemente os valores de rugosidade dos materiais. Luci Sof (Ra=0,74m), Molloplast-B (Ra=1,28m) e Sofreliner (Ra=3,18m) apresentaram diferença estatisticamente significante entre si. O tratamento em Efferdent promoveu diminuição significante dos valores de rugosidade de Luci Sof e Sofreliner. Após o tratamento, os materiais não apresentaram diferença estatisticamente significante entre si (Luci Sof Ra=0,32m; Molloplast-B Ra=0,32m; Sofreliner Ra=0,36m). A imersão em Hipoclorito promoveu diminuição significante os valores de rugosidade dos materiais. Luci Sof (Ra=0,29m) e Molloplast-B (Ra=0,27m) e Molloplast-B e Sofreliner (Ra=0,17m) não apresentaram diferença estatisticamente significante entre si. A escovação diminuiu os valores de dureza significantemente de Molloplast-B (35,10), mas não alterou esses valores de Luci Sof (43,80) e Sofreliner (27,10). Após a escovação, os materiais apresentaram diferença estatisticamente significante entre si. A imersão em Efferdent diminui significantemente os valores de dureza dos materiais. Após o tratamento, Molloplast-B (25,70) e Sofreliner (25,75) não apresentaram diferença estatisticamente significante entre si, mas diferiram de Luci Sof (36,65). A imersão em Hipoclorito diminui significantemente os valores de dureza de Molloplast-B e Sofreliner, e não alterou para Luci Sof. Após o tratamento, Molloplast-B (28,85) e Sofreliner (26,00) não apresentaram diferença estatisticamente significante entre si, mas diferiram de Luci Sof (43,80). A escovação mecânica foi o tratamento que promoveu os maiores valores de rugosidade superficial para todos os materiais avaliados. Após a escovação, todos apresentaram valores estatisticamente diferentes entre si, na ordem crescente: Luci Sof, Molloplast-B e Sofreliner. Os tratamentos de imersão promoveram a diminuição dos valores de rugosidade superficial apresentados pelos materiais Luci Sof e Molloplast-B, e elevação para o material Sofreliner quando imerso em Efferdent. A escovação diminuiu o valor mediano de dureza do material Molloplast-B. Após a escovação, todos apresentaram valores estatisticamente diferentes entre si, na seguinte crescente: Sofreliner, Molloplast-B e Luci Sof. A imersão em Efferdent promoveu diminuição significativa dos valores de dureza para todos os materiais. A imersão em Hipoclorito de Sódio promoveu diminuição significativa dos valores de dureza dos materiais Sofreliner e Molloplast-B
Abstract: The aim of this study was to evaluate the influence of mechanical brushing and denture cleansers on the surface properties of soft lining materials. Three soft liners, Luci Sof (Dentsply), Molloplast-B (Dentax), and Sofreliner (Tokuyama), two denture cleansers Efferdent (Warner-Lamber Co- EUA), and 0,5% alkaline hypochlorite preparation, the Reach Professional toothbrush (Johnson & Johnson) and the dentifrice Sorriso Dentes Brancos (Kolynos do Brasil) were used. Thirty specimens of each soft liner material were prepared by molding the specimen container appliance of the brushing machine, measuring 25mm long, 15mm wide and 3mm thick. Ten specimens of each material were submitted to the mechanical brushing assay, and 20 specimens of each material immersed into the solution of each denture cleanser. The mechanical brushing assay was conducted on the MSEt plus machine, at a rate of 5.0 strokes per second (20.000 cycles). Two denture cleansing approaches were used: 1) specimens immersed in 0.5% alkaline hypochlorite preparation at 37 ± 1 ºC for 20 minutes; 2) specimens immersed in Efferdent at 37 ± 1 ºC for 15 minutes. The specimens were then washed thoroughly with tap water, and immersed into distilled water, for the remainder of the 24 h period, at 37 ± 1 ºC. This procedure was repeated 8 times a day, during 90 days (720 cycles). The specimens were evaluated before and after the cleansing procedures. The surface roughness was evaluated in a profilometer SE 1700 (Kosaka ¿ Laboratory), and the Shore A hardness in a microdurometer GS-709 (Teclock, Japan) with a penetrating load of 10N for 1 second. The observation of superficial morphology from representative specimens of each method of cleanser were observed using a scanning electron microscope JSM 5600 PV model (JEOL-Japan). All numeric data were subjected to Wilcoxon-Mann-Whitney and Kruskal-Wallis tests at the 5% level. The mechanical brushing assay increased significantly the roughness mean values for all materials. The mean values for Luci Sof (Ra=0.74m), Molloplast-B (Ra=1.28m) and Sofreliner (Ra=3.18m) were statistically different after the brushing assay. The Efferdent treatment decreased the roughness mean values of Luci Sof and Sofreliner significantly, but not for Molloplast-B. After the treatment, no differences in the mean values were observed among the materials (Luci Sof Ra=0.32m; Molloplast-B Ra=0.32m; Sofreliner Ra=0.36m). The Hypochlorite treatment decreased the roughness mean values of all materials significantly. After the treatment, neither Luci Sof (Ra=0.29m) and Molloplast-B (Ra=0.27m) nor Molloplast-B and Sofreliner (Ra=0.17m) showed statistically significant differences. The brushig assay decreased the hardness mean values significantly only for Molloplast-B. After the assay, no statistically significant differences were observed for Luci Sof (43.80), Molloplast-B (35.10) and Sofreliner (27.10). The Efferdent treatment decreased the hardness mean values significantly for all materials. After the treatment, mean values of Molloplast-B (25.70) and Sofreliner (25.75) were not statisticaly different, but they differed from that of Luci Sof (36.65). The Hypochlorite treatment decreased the hardness mean values of Molloplast-B and Sofreliner. After the treatment, mean values of Molloplast-B (28.85) and Sofreliner (26.00) were not statisticaly different, but they differed from that of Luci Sof (43.80). The mechanical brushing assay increased the roughness mean values for all materials significantly, from smoothest to roughest in the following order: Luci Sof, Molloplast-B, and Sofreliner. The denture cleansers decreased the roughness mean values of Luci Sof and Molloplast-B, and increased this values for Sofreliner in Efferdent. The mechanical brushing decreased the hardness mean value of Molloplast-B, and after this treatment, all materials showed statistical significantly differences, from smoothest to hardest in the following order: Sofreliner, Molloplast-B, and Luci Sof. The Efferdent treatment decreased the hardness mean values for all materials significantly. The Hypochlorite treatment decreased the hardness mean values for Sofreliner and Molloplast-B significantly
Mestrado
Protese Dental
Mestre em Clínica Odontológica
Book chapters on the topic "Dental materials Denture Liners"
Alla, Rama. "Denture Base Resins." In Dental Materials Science, 248. Jaypee Brothers Medical Publishers (P) Ltd., 2013. http://dx.doi.org/10.5005/jp/books/12018_11.
Full textMitchell, David A., Laura Mitchell, and Lorna McCaul. "Dental materials." In Oxford Handbook of Clinical Dentistry, 626–65. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199679850.003.0015.
Full textManappallil, John. "Denture Resins and Polymers." In Basic Dental Materials, 381. Jaypee Brothers Medical Publishers (P) Ltd., 2010. http://dx.doi.org/10.5005/jp/books/11146_25.
Full textManappallil, John. "Denture Resins and Polymers." In Basic Dental Materials, 529. Jaypee Brothers Medical Publishers (P) Ltd., 2016. http://dx.doi.org/10.5005/jp/books/12669_30.
Full textNejatian, Touraj, Sajjad Pezeshki, and Azeem Ul Yaqin Syed. "Acrylic denture base materials." In Advanced Dental Biomaterials, 79–104. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-08-102476-8.00005-0.
Full textManappallil, John. "Cavity Liners and Varnish." In Basic Dental Materials, 41. Jaypee Brothers Medical Publishers (P) Ltd., 2010. http://dx.doi.org/10.5005/jp/books/11146_6.
Full textManappallil, John. "Cavity Liners and Varnish." In Basic Dental Materials, 80. Jaypee Brothers Medical Publishers (P) Ltd., 2016. http://dx.doi.org/10.5005/jp/books/12669_8.
Full text"Dental materials." In Oxford Handbook of Clinical Dentistry, edited by Bethany Rushworth and Anastasios Kanatas, 647–85. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198832171.003.0016.
Full textBanerjee, Avijit, and Timothy F. Watson. "Restorative materials and their relationship to tooth structure." In Pickard's Guide to Minimally Invasive Operative Dentistry. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780198712091.003.0010.
Full textÇağlar Çınar, İhsan, B. Alper Gültekin, Alper Sağlanmak, and Cem Töre. "Dental Implants." In Biomaterials. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.91377.
Full textConference papers on the topic "Dental materials Denture Liners"
De Sá, João Victor Coimbra Gomes, Wenberger Lanza Daniel De Figueiredo, Lucas Luiz Da Araújo, Vinicius Barbosa Garcia Abrahim, and Paula Taquita Serra. "LIMITAÇÕES DO TRATAMENTO DE MEDICINA REGENERATIVA APLICADA AO TECIDO CARDÍACO." In I Congresso Brasileiro de Biotecnologia On-line. Revista Multidisciplinar de Educação e Meio Ambiente, 2021. http://dx.doi.org/10.51189/rema/1103.
Full textHermans, Anna Beatriz. "O ACOLHIMENTO DENTRO DO ENSINO DE EDUCAÇÃO SEXUAL." In I Congresso Brasileiro de Psicologia Clínica e Social On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/1667.
Full textCosta, Manoela Olegário da, Marcelo Nivert Schlindwein, and Helbert Medeiros Prado. "CONVIVÊNCIAS E PERCEPÇÕES QUILOMBOLAS DO VALE DO RIBEIRA - SP SOBRE A CONSERVAÇÃO DA FAUNA LOCAL (MATA ATLÂNTICA) E POSSÍVEIS INTERAÇÕES DAS INSTITUIÇÕES DE ENSINO NA TEMÁTICA." In I Congresso Nacional On-line de Conservação e Educação Ambiental. Revista Multidisciplinar de Educação e Meio Ambiente, 2021. http://dx.doi.org/10.51189/rema/1683.
Full textde Freitas, Vitória Machado Rodrigues Sousa, Michele Ribeiro Haddad, Júlio César de Paula Ribeiro, and Laura Gama Guerreiro. "A COLABORAÇÃO DO ENSINO VIRTUALIZADO DENTRO DA PERSPECTIVA EDUCACIONAL." In I Congresso Brasileiro de Educação a Distância On-line. Revista Multidisciplinar de Educação e Meio Ambiente, 2021. http://dx.doi.org/10.51189/rema/874.
Full textJustino, Maria Clara Lino, Ana Beatriz Marinho Moura Lima, Graciele Nóbrega Nascimento, Fernando José de Lima Ramos-Júnior, and Deysiane Oliveira Brandão. "AVALIAÇÃO LABORATORIAL DOS NÍVEIS DE GLICEMIA EM JEJUM EM PACIENTES COM GLICOSÚRIA." In I Congresso Brasileiro de Bioquímica Humana On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/666.
Full textMatos, Daniel Moreira, Arthur José Cavalvante Gois, João Gabriel Leal Martins, João Victor Brilhante De Albuquerque, and Vitoria Lima Camelo. "LEVANTAMENTO FLORÍSTICO COMO SUPORTE À PROTEÇÃO DE UNIDADES DE CONSERVAÇÃO E CAPACITAÇÃO DE GRADUANDOS DE CIÊNCIAS BIOLÓGICAS." In II Congresso Brasileiro de Ciências Biológicas On-line. Revista Multidisciplinar de Educação e Meio Ambiente, 2021. http://dx.doi.org/10.51189/rema/1227.
Full textFonteles, Victoria Elizabeth Nascimento, and José Tayllan Fonteles De Lima. "OS EFEITOS DA PRESENÇA DO TRYPANOSOMA CRUZI EM IDOSOS." In I Congresso Nacional de Microbiologia Clínica On-Line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/1163.
Full textPiola, Natalia Xavier. "APLICAÇÃO DA OZONIOTERAPIA DENTRO DA CLÍNICA DE PEQUENOS ANIMAIS." In I Congresso On-line Nacional de Clínica Veterinária de Pequenos Animais. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/1822.
Full textSantos, Marília Pereira dos, and Raquel Girardello. "COMPOSTOS COM ATIVIDADE ANTIMICROBIANA EXTRAÍDOS DE MICRORGANISMOS ENDOFÍTICOS ISOLADOS DO BIOMA BRASILEIRO." In I Congresso Nacional de Microbiologia Clínica On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/1627.
Full textdos Santos, Isabelly Raiane Silva. "FORMENTO À APRENDIZAGEM POR MEIO DA TECNOLOGIA NA PERSPECTIVA DO MULTILETRAMENTO." In I Congresso Brasileiro de Educação a Distância On-line. Revista Multidisciplinar de Educação e Meio Ambiente, 2021. http://dx.doi.org/10.51189/rema/1131.
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