The elastomers for complete denture impression: A review of the literature

Daou, Elie E.

doi:10.1016/j.sdentj.2010.07.005

Cited by 25 publications

(22 citation statements)

References 75 publications

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“…Constata-se que a utilização de novos materiais elastoméricos nos últimos dez anos têm aumentado, substituindo os materiais antes preferidos 18 . Os silicones por adição apresentam melhor estabilidade dimensional, pois não gera subprodutos após a polimerização 19 .…”

Section: Materiais De Moldagemunclassified

“…Quando acionado o gatilho, o êmbolo presente é impulsionado de encontro às pastas permitindo a mistura e obtendo uma massa uniforme e consistente15 .O polissulfeto (mercaptana) tem como vantagens uma boa estabilidade dimensional e precisão, fluidez satisfatória, tempo de trabalho longo, tem baixo custo, é hidrofóbico, é flexível, porém rígido o suficiente para moldagens de áreas retentivas. Como desvantagens, existe o fato de ser restrito aos tecidos moles, a necessidade de ser vazado imediatamente, ter odor desagradável, devido ao tracionamento tem tendência à distorção15,18 . É fornecido em forma de duas pastas, constituinte de um polissulfeto de borracha e um ativador químico que contém peróxido de chumbo15,18 .O poliéter é um material enrijecido, tem menor resistência ao rasgamento e menor deformação, é hidrofílico e proporciona vários vazamentos.…”

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Materiais para Moldagem Funcional usados na Prótese Total: Revisão de literatura / Functional Molding Materials used in Total Prosthesis: Literature Review

Pardim

Cunha

2019

IDonline

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Resumo: Os pacientes que são submetidos à reabilitação com prótese total esperam que a mesma possa lhes dar conforto e que sejam estéticas. Estes dois fatores estão intimamente vinculados aos requisitos funcionais, representados pela retenção, suporte e estabilidade do aparelho protético bem como aos requisitos físicos relacionados principalmente à extensão, recorte muscular e selamento periférico. Objetivo: Identificar os melhores materiais de moldagem utilizados na moldagem funcional da prótese total, a necessidade do conhecimento destes requisitos e de sua aplicação, para garantir melhor qualidade traduzida por boa retenção, suporte e estabilidade adequados, propiciando o conforto esperado tanto pelo profissional como pelo paciente. Metodologia: Esta revisão da literatura analisou diversos artigos publicados nos últimos anos, enfocando os diversos materias para moldagens em prótese total. Os materiais de moldagem entram para auxiliar em uma boa confecção da prótese total junto com a técnica adequada buscando sucesso na moldagem, consequentemente na futura prótese.Palavras-chave: Prótese total. Moldagem funcional. Materiais de moldagem.Abstract: Introduction: Patients who undergo total prosthesis rehabilitation expect it to be comfortable and aesthetic. These two factors are closely linked to the functional requirements, represented by the retention, support and stability of the prosthetic device, as well as the physical requirements related mainly to the extension, muscular cut and peripheral sealing. Objective: The aim of the present study was to identify the best impression materials used in the functional impression of the total prosthesis, the need for knowledge of these requirements and their application, to ensure better quality translated by good retention, adequate support and stability, providing comfort. expected by both the professional and the patient. Methodology: This literature review analyzed several articles published in recent years, focusing on the various materials for total denture molding. The impression materials come to assist in a good preparation of the total prosthesis together with the proper technique seeking success in the impression, consequently in the future prosthesis.

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Section: Materiais De Moldagemunclassified

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Materiais para Moldagem Funcional usados na Prótese Total: Revisão de literatura / Functional Molding Materials used in Total Prosthesis: Literature Review

Pardim

Cunha

2019

IDonline

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“…[17] There are certain differences in the hydrophilic behavior of these materials. [18] Sharry [19] recommended that final impression of the edentulous maxilla should be made with ZOE. Taylor et al [20] also found that the alginate hydrocolloid impression material could be used as a final impression material.…”

Section: Journal Of Adhesion Science and Technology 1103mentioning

confidence: 99%

“…Due to the fact that oral mucosal tissues contain major and minor salivary glands, hydrophilic impression materials are being in closer contact with wet mucosa according to hydrophobic ones. [18,23] It is thought that the stronger adhesive force may be resulted from hydrophilic and rigid characteristics of ZOE.…”

Section: Journal Of Adhesion Science and Technology 1103mentioning

confidence: 99%

Effect of impression valve system on adhesion force of impression materials to edentulous maxillary jaw: a preliminary clinical study

Akpinar¹,

Uzun²,

Yilmaz³

et al. 2015

Journal of Adhesion Science and Technology

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Objective: The purpose of this preliminary clinical study was to evaluate the effect of novel impression valve system (IVS) on adhesion force of different impression materials to edentulous maxilla. Background data: Impression materials and techniques have an important role in complete denture success. During the functional impression with an individual impression tray (IIT), high adhesive forces exist between edentulous ridge and impression material. Removing the IIT from the mouth with minimal force provides the most accurate and non-deformed impression. Materials and methods: This study included twenty maxillary edentulous patients (n = 20). Patients who had palatal torus, anatomic undercut, gagging reflex, and flabby ridges were excluded from the study. The age range of the participants was 55-70. All patients gave written informed consent. Two impression materials -zinc oxide eugenol (ZOE) and alginate -were used as experimental material. The digital dynamometer was used to determine the adhesion force of impression materials with and without IVS to edentulous maxilla. The mean values of the adhesion forces were analyzed using the Wilcoxon signed-ranks test (α = 0.05). Results: The effect of IVS on adhesion force was found to be statistically significant (p < 0.05). There were also statistical differences between the ZOE and alginate groups (p < 0.05). Conclusions: The IVS is useful to remove the functional impression from the mouth without any deformation and detaching in cases which high adhesive force occurs.

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“…There are four groups of impression materials that are in use for final impression in fixed prosthodontics: polysulfides, polyethers, condensation and addition silicones. Each group of material has its advantages and disadvantages [2]. Elastomers are a group of elastic impression materials.…”

Section: Introductionmentioning

confidence: 99%

The Dimensional Stability of Elastomeric Dental Impression Materials

Marković

Puškar

Hadžistević

et al. 2012

Contemporary Materials

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High accuracy dental impression is usually a first step during fabrication of indirect restorations that have to be seated in or on prepared teeth. The dimensional stability of the impression material could have an influence on the accuracy of the final restoration. Elastomeric materials (addition-cured silicones and condensation-cured silicones) are most frequently used as the impression material in fixed prosthodontics. The composition and the type of the chemical reaction determine the urgency to cast or digitize the impression. The aim of this study was to asses the dimensional stability of addition and condensation -cured silicones in time.Stainless steel model of two cylinders with the spherical top was fabricated. First, individual tray of acrylic resin was made according to the standard procedure. Addition and condensation cured silicon impressions were taken using monophase technique in acrylic tray. Impressions were cast in type IV dental stone after different periods of time, and dental stone replica models were made. Master model and dental stone replica models were scanned using Carl Zeiss Coordinate measuring machine Contura G2 with associated volumetric probing tolerance of 1µm. Processing was done using Calypso software.Addition and condensation cured silicon impressions were cast after different periods of time. Master model and dental stone replica models were scanned and the differences between the models were measured. The dimensional differences between the master model and the replica models occurred due to the dimensional instability of the impression material. The differences were significantly greater when condensation cured silicon impression material was used comparing to the addition cured silicon impression material.Both condensation and addition silicon showed satisfactory dimensional stability if cast according to the manufacturer's instructions. If so, the linear dimensional changes did not exceed 1%.

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The elastomers for complete denture impression: A review of the literature

Cited by 25 publications

References 75 publications

Materiais para Moldagem Funcional usados na Prótese Total: Revisão de literatura / Functional Molding Materials used in Total Prosthesis: Literature Review

Materiais para Moldagem Funcional usados na Prótese Total: Revisão de literatura / Functional Molding Materials used in Total Prosthesis: Literature Review

Effect of impression valve system on adhesion force of impression materials to edentulous maxillary jaw: a preliminary clinical study

The Dimensional Stability of Elastomeric Dental Impression Materials

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