Zinc Phosphate Cement
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Influence of core-finishing intervals on tensile strength of cast posts-and-cores luted with zinc phosphate cement
The core finishing of cast posts-and-cores after luting is routine in dental practice. However, the effects of the vibrations produced by the rotary cutting instruments over the luting cements are not well-documented. This study evaluated the influence of the time intervals that elapsed between the cementation and the core-finishing procedures on the tensile
Brazilian Oral Research. Publicado em: 2012-08
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2. Influence of remaining coronal structure and finish line on the fracture strength of roots restored with metallic posts
The purpose of this study was to evaluate the fracture strength of roots that were prosthetically restored with metallic posts with or without any remaining coronal structure and with different finish lines. Sixty bovine incisors were sectioned below the cementoenamel junction, endodontically treated, and randomly divided into six experimental groups (n = 10
Brazilian Oral Research. Publicado em: 2011-08
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3. Surface roughness of orthodontic band cements with different compositions
OBJECTIVES: The present study evaluated comparatively the surface roughness of four orthodontic band cements after storage in various solutions. MATERIAL AND METHODS: Eight standardized cylinders were made from 4 materials: zinc phosphate cement (ZP), compomer (C), resin-modified glass ionomer cement (RMGIC) and resin cement (RC). Specimens were stored for 2
Journal of Applied Oral Science. Publicado em: 2011-06
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4. Resistência de união da interface coping cerâmico pilar de implante variando o agente cimentante antes e após ciclagem térmica / Bond strength of the ceramic coping-implant abutment interface varying luting agent before and after thermal cycling
Objective: The aim of the present study was to evaluate the bond strength of the ceramic coping-abutment implant interface according to the luting agent, before and after thermal cycling. Methods: A total of forty sets of ceramic copings (IPS e.max) and solid pillar 5.5/ regular analogue were divided according to the luting agent (n=10): (OZ) zinc oxide with
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/10/2010
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5. Resin Cements: Tissular response in dogs´teeth / Cimentos resinosos: resposta tecidual em dentes de cães
This study evaluated the radiologic and microscopic response of pulp and periradicular tissues after the application of resin cements Rely X® Unicem (3M ESPE Produtos dentários Sumaré - Brasil) and Multilink® (Ivoclar Vivadent Ltda - São Paulo - Brasil) in deep cavities in dogsteeth. STUDY DESIGN: The second and third maxillary premolars and the second,
Publicado em: 2010
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6. Effect of eugenol-based endodontic sealer on the adhesion of intraradicular posts cemented after different periods
OBJECTIVE: This study evaluated in vitro the influence of an eugenol-based sealer (EndoFill) on the retention of stainless steel prefabricated posts cemented with zinc phosphate and resin-based (Panavia F) cements after different periods of root canal obturation, using the pull-out test. MATERIAL AND METHODS: Sixty upper canines were decoronated and the root
Journal of Applied Oral Science. Publicado em: 2009-12
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7. Influence of luting agents on time required for cast post removal by ultrasound: an in vitro study
OBJECTIVE: This in vitro study evaluated the influence of luting agents on ultrasonic vibration time for intraradicular cast post removal. MATERIAL AND METHODS: After endodontic treatment, 30 roots of extracted human canines were embedded in resin cylinders. The post-holes were prepared at 10 mm depth and their impressions were taken using autopolymerizing a
Journal of Applied Oral Science. Publicado em: 2009-06
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8. Comparison of the time required for removal of intraradicular cast posts using two Brazilian ultrasound devices
The aim of this in vitro study was to compare the time required for removal of intraradicular cast posts cemented with zinc phosphate (ZF) or glass ionomer cement (GIC), using two Brazilian ultrasound devices (BUD). Seventy two human inferior premolars with single root canals were sectioned transversally at the cementoenamel junction. In each specimen, the r
Brazilian Oral Research. Publicado em: 2009-03
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9. Assessment of the tensile strength of hexagonal abutments using different cementing agents
The aim of this study was to assess the uniaxial tensile strength after thermal cycling in replicas of CeraOne®abutments (abutment and coping sets), using four types of cements (n = 10). A zinc phosphate cement (Fosfato de Zinco®/ SSW), a resin-modified glass ionomer cement (RelyX®luting / 3M-ESPE), a zinc oxide-eugenol cement (ZOE®/ SSW) and a zinc oxid
Brazilian Oral Research. Publicado em: 2008-12
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10. Effect of ultrasonic instrumentation on the bond strength of crowns cemented with zinc phosphate cement to natural teeth. An in vitro study
Several studies have reported the benefits of sonic and/or ultrasonic instrumentation for root debridement, with most of them focusing on changes in periodontal clinical parameters. The present study investigated possible alterations in the tensile bond strength of crowns cemented with zinc phosphate cement to natural teeth after ultrasonic instrumentation.
Brazilian Oral Research. Publicado em: 2008-09
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11. Correlation between margin fit and microleakage in complete crowns cemented with three luting agents
Microleakage can be related to margin misfit. Also, traditional microleakage techniques are time-consuming. This study evaluated the existence of correlation between in vitro margin fit and a new microleakage technique for complete crowns cemented with 3 different luting agents. Thirty human premolars were prepared for full-coverage crowns with a convergence
Journal of Applied Oral Science. Publicado em: 2008-02
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12. Internal adaptation of cast titanium crowns
As the adaptation of titanium crowns obtained by Rematitan Plus investment, specific for titanium, is not recognized to be suitable, this study evaluated the effect of the concentration of the specific liquid and the temperature of the mold of investments on the internal misfit of crowns cast on commercially pure titanium. Individual dies of epoxy resin were
Journal of Applied Oral Science. Publicado em: 2007-08