Marginal Leakage
Mostrando 1-12 de 44 artigos, teses e dissertações.
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1. Influência da espessura da resina de baixa viscosidade e da técnica restauradora na infiltração marginal em restaurações realizadas com compósito dental / Influence of the thickness of two flowable composite resins and the restorative technique on microleakage of simulated class II composite resin restorations
O objetivo deste estudo in vitro foi avaliar quantitativamente a infiltração marginal ao redor de restaurações dentais, realizadas com compósito resinoso microhíbrido, variando a espessura, a resina de baixa viscosidade e a técnica restauradora. As superfícies proximais de cento e trinta incisivos bovinos foram preparadas e divididas de acordo com a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/06/2011
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2. Characterization of aqueous silver nitrate solutions for leakage tests
OBJECTIVE: To determine the pH over a period of 168 h and the ionic silver content in various concentrations and post-preparation times of aqueous silver nitrate solutions. Also, the possible effects of these factors on microleakage test in adhesive/resin restorations in primary and permanent teeth were evaluated. MATERIAL AND METHODS: A digital pHmeter was
Journal of Applied Oral Science. Publicado em: 2011-06
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3. Polymerization Shrinkage and Flexural Modulus of Flowable Dental Composites
Linear polymerization shrinkage (LPS), flexural strength (FS) and modulus of elasticity (ME) of low-viscosity resin composites (Admira Flow™, Grandio Flow™/VOCO; Filtek Z350 Flow™/3M ESPE; Tetric Flow™/Ivoclar-Vivadent) was evaluated using a well-established conventional micro-hybrid composite as a standard (Filtek Z250™/3M ESPE). For the measureme
Materials Research. Publicado em: 2010-09
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4. Sealing ability, marginal adaptation and their correlation using three root-end filling materials as apical plugs
OBJECTIVE: This study used dye leakage assay and scanning electron microscopy to evaluate, respectively, the sealing ability and marginal adaptation of three root-end filling materials used as apical plugs, as well as the possible correlation between these properties. MATERIAL AND METHODS: Ninety-eight single-rooted human teeth were prepared to simulate an o
Journal of Applied Oral Science. Publicado em: 2010-04
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5. Influence of storage times on bond strength of resin cements to root canal
The resin cements are responsible to retention of the indirect materials decreasing marginal leakage, increasing failure resistance compared with conventional cementation. The cementation within root canal is very hard due unfavorable conditions regarding the application of adhesive techniques caused by inadequate access. Therefore, considering the possibili
Materials Research. Publicado em: 2010-03
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6. Influence of different restorative techniques on marginal seal of class II composite restorations
OBJECTIVE: To evaluate the gingival marginal seal in class II composite restorations using different restorative techniques. MATERIAL AND METHODS: Class II box cavities were prepared in both proximal faces of 32 sound human third molars with gingival margins located in either enamel or dentin/cementum. Restorations were performed as follows: G1 (control): co
Journal of Applied Oral Science. Publicado em: 2010-02
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7. Sealing ability of MTA and amalgam in different root-end preparations and resection bevel angles: an in vitro evaluation using marginal dye leakage
Este estudo in vitro avaliou o efeito de diferentes ângulos de apicectomia, instrumentos utilizados na retrocavitação e materiais odontológicos usados na retrobturação sobre selamento apical. Oitenta dentes unirradiculares, tratados endodonticamente, foram apicectomizados. Quarenta raízes tiveram seu ápice radicular seccionado com angulação de 45º
Brazilian Dental Journal. Publicado em: 2010
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8. Importance of three techniques of cavity preparation and three adhesive systems on microleakage of composite resin restorations / Importância de três técnicas de preparo cavitário e de três sistemas adesivos na microinfiltração marginal em restaurações Classe V de resina composta
This in vitro study compared the microleakage of class V resin composite restorations placed in cavities prepared with high-speed dental bur (AR), ultrasonic preparation devices (US) and high-speed dental bur plus ultrasonic preparation devices(AR+US), and restored using three different adhesive systems (One all etch Single Bond (SB) , and two Self-etch Clea
Publicado em: 2010
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9. Avaliação dos métodos para análise da microinfiltração marginal em restaurações de resina composta classe V in vitro / The methods evaluation for marginal microleakage analysis in class V resin composite restorations in vitro
O objetivo deste estudo foi comparar os resultados da microinfiltração marginal obtidos por diferentes meios de aquisição de imagens e métodos de mensuração da penetração de prata em restaurações de resina composta classe V, in vitro. Dezoito pré-molares humanos hígidos, recém extraídos, foram divididos em três grupos, de acordo com o tipo de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/12/2009
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10. Influence of human and bovine substrate on the microleakage of two adhesive systems
The aim of this study was to evaluate in vitro the marginal sealing of two adhesive systems and to analyze the influence of human and bovine substrates on marginal microleakage in enamel. Rectangular-shaped class V cavities (4 mm wide x 2 mm high x 2 mm deep) were made as follows: 8 cavities were prepared on the buccal and lingual surfaces of the human teeth
Journal of Applied Oral Science. Publicado em: 2009-04
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11. Evaluation of periapical inflammation response from coronal leakage in dog´s teeth obturated using different resin-based sealers and different obturation techniques / Avaliação da resposta inflamatória periapical resultante da infiltração coronária em dentes de cães obturados com diferentes cimentos resinosos e técnicas obturadoras
Considering the need for three-dimensional obturations and adequate marginal sealing of the radicular canal system as being decisive factors for successful endodontic therapy, this study had as its objective the evaluation of periapical inflammatory responses resulting from coronary infiltration in dogs teeth obturated using different resin sealers (AH Plus,
Publicado em: 2009
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12. Avaliação da microinfiltração marginal em cavidades classe II de molares decíduos restauradas com diferentes cimentos de ionômero de vidro / Evaluation of marginal microleakage in class II cavities of primary molars restored with different glass ionomer cements
The aim of this study was to evaluate the microleakage in class II glass ionomer cement restorations in primary molars. For this, were selected fourty primary molars in a human teeth bank. At mesial and distal surfaces of the teeth were prepared standard class II cavities. In sequence, the teeth were subdivided in eight experimental groups in according with
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2008