نتایج جستجو برای: dental cements

تعداد نتایج: 164534  

2013
Loreley Morejón-Alonso Raúl García Carrodeguas Luis Alberto dos Santos

Calcium phosphate cements have received much attention in recent decades owing to their biocompatibility, in situ handling, and shaping abilities. However, their low initial mechanical strength is still a major limitation. On the other hand, calcium aluminate cements (CACs) set fast and have a high initial strength and good corrosion resistance in contact with body fluids, making them excellent...

Journal: :Revista de Odontologia da Universidade Cidade de São Paulo 2017

2011
Yiming Weng Xia Guo Voon Joe Chong Leah Howard Richard L. Gregory Dong Xie

The novel quaternary ammonium bromide (QAB)containing oligomers were synthesized and applied for developing an antibacterial resin composite. Compressive strength (CS) and S. mutans (an oral bacteria strain) viability were used to evaluate the mechanical strength and antibacterial activity of the formed composites. All the QAB-modified resin composites showed significant antibacterial activity ...

2013
Jabr S. Al-Sanabani Ahmed A. Madfa Fadhel A. Al-Sanabani

Calcium phosphate materials are similar to bone in composition and in having bioactive and osteoconductive properties. Calcium phosphate materials in different forms, as cements, composites, and coatings, are used in many medical and dental applications. This paper reviews the applications of these materials in dentistry. It presents a brief history, dental applications, and methods for improvi...

2013
Sangeeta Talwar Gaurav Garg

Worldwide publicity of the amalgam controversy has intensified the growing concerns on its utilization and safety. This controversy has grown beyond the confines of the dental profession itself and has become an emotional public health issue. Amalgam has been the material of choice for restoring posterior teeth for more than 100 years. Presently, there has been a shift toward resin composite an...

2015
Kapil Singh Ajay V Gaikwad Shriprasad Sarapur Saket Kumar Jain

* Senior Lecturer, Department of Prosthodontics, RKDF Dental College & Research Centre, Bhopal, Madhya Pradesh, India ** Professor & Head, Department of Prosthodontics, RKDF Dental College & Research Centre, Bhopal, Madhya Pradesh, India *** Reader, Department of Prosthodontics, RKDF Dental College & Research Centre, Bhopal, Madhya Pradesh, India † Professor, Department of Prosthodontics, RKDF ...

2016
Song Chen Yixiao Cai Håkan Engqvist Wei Xia

Glass ionomer cements (GIC) are known as a non-bioactive dental cement. During setting the GIC have an acidic pH, driven by the acrylic acid component. It is a challenge to make GIC alkaline without disturbing its mechanical properties. One strategy was to add slowly reacting systems with an alkaline pH. The aim of the present study is to investigate the possibility of forming a bioactive denta...

2018
Ludwig Stanislas Loison-Robert Mathilde Tassin Eric Bonte Tsouria Berbar Juliane Isaac Ariane Berdal Stéphane Simon Benjamin P J Fournier

BACKGROUND Calcium silicate-based cements are biomaterials with calcium oxide and carbonate filler additives. Their properties are close to those of dentin, making them useful in restorative dentistry and endodontics. The aim of this study was to evaluate the in vitro biological effects of two such calcium silicate cements, Biodentine (BD) and Bioroot (BR), on dental stem cells in both direct a...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2005
Niek De Jager Prem Pallav Albert J Feilzer

OBJECTIVES Besides the fixation of the restoration, an important function of dental luting cements is to seal the gap between tooth and restoration. However, as a result of adhesion, curing contraction is hindered, creating stresses. To maintain the seal these stresses neither exceed the bond nor the cohesive strength of the cement. The aim of this study was to evaluate a rather simple model, w...

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