Calcium Hydroxide Cement
Mostrando 13-24 de 37 artigos, teses e dissertações.
-
13. Cement composites reinforced by short curaua fibers
The development of an eco-friendly material that could reduce CO² emission and that could aggregate value to a natural fiber, setting man at the countryside and raising the income of populations from poor regions is a challenge. Lignocellulosic fibers are cheap and are a readily available reinforcement, requiring only a low degree of industrialization for t
Matéria (Rio de Janeiro). Publicado em: 2010
-
14. Influencia de la temperatura de curado: hidratación y resistencia de pastas de cemento con escoria
Nowadays it is well known that using blast furnace slag as partial replacements for Portland cement adds technological, economic and environmental benefits. Those are some of the reasons why cements containing several additions (blast furnace slag, fly ash, calcareous material, etc) are commonly used. In recent years, blended cements started to increase amou
Matéria (Rio de Janeiro). Publicado em: 2010
-
15. Remoção parcial de tecido cariado em lesões de cárie profundas de dentes permanentes = Partial removal of carious dentine in deep caries lesion in the permanent dentition / Partial removal of carious dentine in deep caries lesion in the permanent dentition
The partial removal of carious dentine was studied by means of a literature review and a multicenter randomized controlled clinical trial. The clinical trial compared the effectiveness of an alternative treatment for deep caries lesions and the stepwise excavation in Public Health Services in Brazil. The treatment consists of partial removal of carious denti
Publicado em: 2010
-
16. Water sorption and solubility of different calcium hydroxide cements
OBJECTIVES: Calcium hydroxide cements have been largely used in deep cavities due to their abilities to stimulate dentin formation. However, their resistance can be relatively low and their solubility relatively high, in many instances. This study evaluated water sorption and solubility of different calcium hydroxide cements, in order to show alterations tha
Journal of Applied Oral Science. Publicado em: 2009-10
-
17. Analysis of inorganic composition and release of formaldehyde after manipulation of endodontic sealers / Analise da composição inorganica e da liberação de formaldeido apos a manipulação de cimentos endonticos
This study evaluated chemical composition (inorganic) and formaldehyde presence in root-canal sealers. Seven root-canal sealers were chosen: four based-zinc-oxide-eugenol (ZOE) (Targer Canal Sealer, Konne; Endo Fill, Dentsply; Endométhasone N, Septodont and; Pulp Canal Sealer, Kerr); two based-mineral trioxide aggregate (MTA) (Endo CPM Sealer, EGEO Dental a
Publicado em: 2009
-
18. EFEITOS NAS PROPRIEDADES MECÂNICAS, ELÁSTICAS E DE DEFORMAÇÃO EM CONCRETOS COM ALTOS TEORES DE ESCÓRIA E CINZA VOLANTE. / EFFECTS ON MECHANICAL, ELASTIC AND DEFORMATION PROPERTIES ON CONCRETE WITH HIGH LEVELS OF SLAG AND FLY ASH.
The use of byproducts and industrial waste as pozzolanic, is an alternative to achieve the sustainability, economy and durability in concrete structures. This survey has as its purpose to analyze the effect on mechanical, elastic and deformation properties on concrete with a high level of granulated slag from blast furnace and fly ash in place of Portland bu
Publicado em: 2009
-
19. Influência da cal hidratada nas idades iniciais da hidratação do cimento Portland - estudo em pasta. / Influence of hydrated lime on initial stages of hydration of Portland cement - paste study.
In the last decades, scientific and technological progress has shown a significant advance in the process of obtaining lime; however, there is gap knowledge with relation to its action when employed together with Portland cement. The use of lime in finishing mix mortars has only been positively associated to the fresh state plasticity and ability to deformat
Publicado em: 2008
-
20. Estudo clínico, radiográfico e microscópico dos efeitos do formocresol de Buckley diluído a 1/5, hidróxido de cálcio PA e agregado trióxido mineral (MTA) em pulpotomias de dentes decíduos humanos / Clinical, radiographic and microscopic study on 1:5 dilution of Buckleys formocresol, calcium hydroxide and trioxide mineral agregate a used for pulpotomies of human primary teeth
The aim of this study was to compare the clinical, radiographic and microscopic effectiveness of formocresol (FC), calcium hydroxide (CH) and trioxide mineral aggregate (MTA) as pulp dressing agents in carious primary teeth. Forty-five primary mandibular molars of 23 children between 5 and 9 years old were treated by conventional pulpotomy technique. The tee
Publicado em: 2008
-
21. CARBONATAÇÃO EM CONCRETO COM CINZA DE CASCA DE ARROZ SEM MOAGEM / CONCRETE CARBONATION WITH UNGROUND RICE HUSK ASH
This research is part of a project that aimed to evaluate the technical viability of the use of unground (in natura) residual Rice Husk Ash (RHA), without grinding, for structural concrete. The present work investigated the evaluation of the depth and the determination of the carbonation coefficients for concrete with the addition of 15% and 25% residual RHA
Publicado em: 2008
-
22. Ação do laser de Nd:YAG intracanal sobre endotoxinas na dentina radicular / Root canal Nd:YAG laser action on endotoxins in the radicular dentin
The endotoxins are responsible for important systemic and local reactions that could compromise the endodontic success. The calcium hydroxide even with limitations is the only effective option among the irrigant solutions and intracanal medications on the endotoxin reduction in the dentinal tubules. This experiment evaluated the Nd:YAG laser efficacy regardi
Publicado em: 2007
-
23. Avaliação microestrutural e comportamento físico e mecânico de concretos de alto desempenho produzidos com metacaulim
Structure-property relationships represent the essence of the modern materials science. For concretes, materials with heterogeneous and complex structures, these relationships still are not well developed. The incorporation of different materials in its manufacture, such as pozzolans, has contributed, even more, the increase the complexity of its microstruct
Publicado em: 2007
-
24. Comparative study of pulp capping materialsradiopacity / Estudo comparativo da radiopacidade de materiais forradores
O sucesso no tratamento odontológico tem sido incansavelmente buscado, seja através da melhoria das técnicas ou dos materiais. Contribuindo com essa realidade, o objetivo deste trabalho foi, por meio de uma metodologia inédita, verificar e comparar a densidade óptica do hidróxido de cálcio, cimento de ionômero de vidro e de um vidro bioativo, correla
Publicado em: 2007