Results 111 to 120 of about 33,354 (259)

Cemento de β-Silicato Dicálcico para Aplicaciones Biomédicas

Tecnología y Ciencia, 2019
El β-silicato dicálcico (β-Ca2SiO_4, β-C_2S) es uno de los principales constituyentes del cemento Portland y de muchos materiales refractarios. Es un cemento hidráulico que fragua formando una fase hidratada del tipo C-S-H que ofrece resistencia mecánica
Daniel Correa, Amisel Almirall, Lázaro Brito, Raúl García, Luis Alberto dos Santos, Antonio de Aza, Juan Parra, José Ángel Delgado   +7 more
doaj  

Embolismo pulmonar de cemento posterior a vertebroplastia percutanea

Revista de la Facultad de Ciencias Médicas de Córdoba, 2013
La vertebroplastia representa una técnica mínimamente invasiva para el tratamiento de las fracturas osteoporóticas. Dentro de sus complicaciones se encuentra el embolismo pulmonar, el cuál puede cursar asintomático o con dificultad respiratoria, pudiendo
Marianela Patricia Bedini, Ricardo Arturo Albertini, Santiago Orozco   +2 more
doaj   +1 more source

Preoperative 3D Morphological Predictors of Bone Bridge Formation in Secondary Alveolar Bone Grafting: A CBCT Analysis

Orthodontics &Craniofacial Research, EarlyView.
ABSTRACT Purpose To identify independent preoperative three‐dimensional (3D) morphological predictors for postoperative bone bridge formation in secondary alveolar bone grafting (SABG) using cone‐beam computed tomography (CBCT), and to propose an optimal surgical strategy based on these quantitative indicators.
Toshiro Kibe, Yuhei Kamikuri, Masahiro Tezuka, Namiko Nomoto‐Kimura, Shinki Serizawa, Kei Yoshida, Aiko Kurosaka, Kaoru Yamashita, Kiyohide Ishihata, Hideto Saijo   +9 more
wiley   +1 more source

Caracterización de un cemento puzolánico [PDF]

, 1982
Se caracterizáron las materias primas (caliza, yeso, y material pulozánico) para la producción de cemento portland y el clinker obtenido en este proceso, por medio del análisis químico elemental y espectroscopia infrarroja.
Mora, Ernesto, Rincón, Hugo, De Bravo, Yolanda   +2 more
core  

Periodontal considerations during orthodontic intrusion and extrusion in healthy and reduced periodontium

Periodontology 2000, EarlyView.
Abstract In patients with advanced periodontal disease, pathological tooth migration may occur, which may require subsequent orthodontic treatment for both aesthetic and functional purposes. When planning orthodontic treatment mechanics, intrusive or extrusive forces are frequently indicated.
Gregory S. Antonarakis, Alkisti Zekeridou, Stavros Kiliaridis, Catherine Giannopoulou   +3 more
wiley   +1 more source

Reviewing the benefits and clinical outcomes of oral fibroblasts over mesenchymal stem cells for repairing periodontal defects during or after orthodontic tooth movement

Periodontology 2000, EarlyView.
Abstract Orthodontic therapy applies forces to teeth, causing an inflammatory reaction in the periodontal ligament. This is repaired by remodeling of the periodontium, allowing tooth displacement. Although orthodontic therapy is mostly initiated during childhood and adolescence, the number of adults seeking this treatment is increasing as our society's
Ludovica Parisi, Eleni Mavrogonatou, Anton Sculean, Dimitris Kletsas, Martin Degen   +4 more
wiley   +1 more source

Linee guida per le analisi non-lineari di edifici esistenti in cemento armato [PDF]

, 2008
Nel quadro del programma di ricerca Reluis, linea 2 - edifici in cemento armato esistenti, riscontrata la mancanza di linee guida sui metodi di analisi nonlineari da normativa e sulla loro applicazione alla valutazione di edifici in cemento armato ...
Magliulo G., Maddaloni G., Marino I., Spacone E., LUCCHINI, Andrea, De Stefano M., Martinelli E., Bosco M., MONTI, Giorgio, Petti L., Trombetti T., Saetta A., Ghersi A., Camata G.   +13 more
core  

Orthodontic management of uneven gingival margins in patients with healthy or reduced periodontium to improve smile aesthetics

Periodontology 2000, EarlyView.
Abstract Uneven gingival margins may cause visible asymmetries during smiling and may reflect alterations in the tooth shape and morphology, particularly in cases requiring restorative procedures. Despite being perceived as a minor health condition, presence of uneven gingival margins usually impacts the smile aesthetics and could affect the individual'
Conchita Martin, Spyridon N. Papageorgiou, Oscar Gonzalez‐Martin, Mariano Sanz   +3 more
wiley   +1 more source

Influencia de la cáscara de huevo molida como sustituto parcial de cemento en la resistencia mecánica y trabajabilidad de mezclas de concreto para pavimentos rígidos

Advances in Building Education
Esta investigación analiza la influencia de la sustitución del 5%, 10% y 15% del cemento por cáscara de huevo molida en las propiedades físico-mecánicas del concreto para pavimentos rígidos. Se busca evaluar en qué medida la resistencia a la compresión y
Davys Rojas, Marlon Ayquipa, Amaluz Angarita-Albornoz, Luis Alberto Rivera-Echegaray   +3 more
doaj   +1 more source

30 years of enamel matrix derivative: Mimicking tooth development as a clinical concept

Periodontology 2000, EarlyView.
Abstract The use of growth factors (GFs) has become a cornerstone of modern regenerative periodontology. While the extent to which GFs enhance tissue regeneration compared to other biomaterials was initially uncertain, it is now well established that GFs play a critical role in the regeneration of various tissue types.
Richard J. Miron, Yoshinori Shirakata, Paras Ahmad, Mario Romandini, Nathan E. Estrin, Nima Farshidfar, Dieter D. Bosshardt, Anton Sculean   +7 more
wiley   +1 more source