DONNEES RECENTES SUR LES PROPRIETES DE L'HYDROXYDE DE CALCIUM PDF Download
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Author: FREDERIQUE.. BENTOLILA LERIQUE
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Category :
Languages : fr
Pages :
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Author: FREDERIQUE.. BENTOLILA LERIQUE
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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Author: ISAAC.. LUGASSY
Publisher:
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Category :
Languages : fr
Pages : 296
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Author: Aurélie Lacour-Sitruk
Publisher:
ISBN:
Category :
Languages : fr
Pages : 182
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L’hydroxyde de calcium, utilisé dans l’art dentaire depuis le début du XXème siècle est présent encore aujourd’hui en odontologie sous plusieurs formes et pour de multiples indications. Ce matériau revêt l’aspect d’une poudre blanche dont les particules ont une taille comprise entre 2 et 5 microns. Sa composition chimique, lui confère de nombreuses propriété. Une action antibactérienne l’ion OH-, responsable de l’alcalinité (PH12,4) détruit les bactéries anaérobies, et perturbe le métabolisme bactérien. Une action anti-inflammatoire en opposant par phénomène de tampon à l’acidité inflammatoire. Une action hémostatique due à la présence de calcium qui provoque une nécrose de coagulation et une contraction des sphincters capillaires. Une action sur les tissus induisant la minéralisation. De plus non cytotoxique, l’hydroxyde de calcium est biocompatible. Ce travail rappelle donc les propriétés physiques et biologiques de l’hydroxyde de calcium. ses indications dans le cadre des thérapeutiques endocanalaires, et fait le point sur les principales formulations proposées au praticien. Toutefois, l’hydroxyde de calcium présente des limites thérapeutiques et des inconvénients. Son élimination complète du réseau canalaire est parfois difficile. Son action anti-bactérienne est controversée par de nombreux auteurs, et son utilisation dans les cas de parodontite apicale non suppurée est remise en question.
Author: Christelle Cartieaux Francq
Publisher:
ISBN:
Category :
Languages : fr
Pages : 248
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Author: Daniel Buser
Publisher: Quintessence Publishing (IL)
ISBN: 9780867154016
Category : Bone regeneration
Languages : en
Pages : 0
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Brings the reader up-to-date on the developments in GBR over the past 20 years. The first four chapters focus on the basic science of GBR in implant dentistry. Helps the reader to understand the biologic and biomaterial background of this well-documented and well-established surgical technique in implant dentistry—essential knowledge for the use of barrier membranes in patients. Focuses on the clinical applications of GBR. Presents specific indications and describes the criteria for patient selection, the step-by-step surgical procedure, and aspects of postoperative treatment. Reflects the immense progress of GBR in the past 10 to 15 years and the current clinical status of GBR in implant dentistry. Like its predecessor, is a must-have resource for all clinicians with interest and experience in implant dentistry. [editor].
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Category : Soil science
Languages : en
Pages : 1346
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Author:
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Category : Soil science
Languages : en
Pages : 1354
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Author: Linda Strande
Publisher: IWA Publishing
ISBN: 1780404735
Category : Technology & Engineering
Languages : en
Pages : 428
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It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Author: Peter J. Heaney
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 1501509691
Category : Science
Languages : en
Pages : 624
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Volume 29 of Reviews in Mineralogy provides an updated silica review which focuses on the most recent developments. This book describes the crystal structures and phase transitions of silica and its stuffed derivatives; bridges the relationship between the microstructural character of real silica minerals and the behavior of silica in the geological environment; covers Quantum mechanical considerations of the Si-O bond; shows how calculations based upon first-principles theory can explain and predict silica transitions at high temperatures and pressures; covers spectroscopic analyses of silica and how they reveal vibrational behaviors in response to variations in temperature, pressure, and composition and finally details the uses of silica for industrial purposes.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251055212
Category : Technology & Engineering
Languages : en
Pages : 116
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Book Description
Soils are affected by human activities, such as industrial, municipal and agriculture, that often result in soil degradation and loss. In order to prevent soil degradation and to rehabilitate the potentials of degraded soils, reliable soil data are the most important prerequisites for the design of appropriate land-use systems and soil management practices as well as for a better understanding of the environment. The availability of reliable information on soil morphology and other characteristics obtained through examination and description of the soil in the field is essential, and the use of a common language is of prime importance. These guidelines, based on the latest internationally accepted systems and classifications, provide a complete procedure for soil description and for collecting field data. To help beginners, some explanatory notes are included as well as keys based on simple test and observations.--Publisher's description.
