نتایج جستجو برای: dental composites

تعداد نتایج: 206089  

Journal: :Journal of materials science. Materials in medicine 2003
L Ambrosio

▶ The Journal of Materials Science: Materials in Medicine is the official journal of the European Society for Biomaterials (ESB) ▶ Covers the science and technology of biomaterials and their applications as medical or dental implants, prostheses and devices ▶ Spans a wide range of topics from basic science to clinical applications ▶ Examines the metals, ceramics, polymers and composites used in...

Journal: :Journal of the mechanical behavior of biomedical materials 2011
Sebastian Hahnel Sabine Schultz Christina Trempler Bastian Ach Gerhard Handel Martin Rosentritt

AIM The aim of this in vitro study was to determine the two-body wear resistance of modern direct dental restorative materials. METHODS Eight standardized specimens were prepared from 14 dental restorative materials (nano-, micro-, hybrid-, macrofilled composites; compomer, silorane, ormocer); a veneering composite (Sinfony) and enamel were used for reference. Vickers hardness (HV) and inorga...

2009
Karin Cristina da Silva Modena Leslie Caroll Casas-Apayco Maria Teresa Atta Carlos Alberto de Souza Costa Josimeri Hebling Carla Renata Sipert Maria Fidela de Lima Navarro Carlos Ferreira Santos

There are several studies about the cytotoxic effects of dental materials in contact with the pulp tissue, such as calcium hydroxide (CH), adhesive systems, resin composite and glass ionomer cements. The aim of this review article was to summarize and discuss the cytotoxicity and biocompatibility of materials used for protection of the dentin-pulp complex, some components of resin composites an...

2017
Xiaoqing Song Chenchen Liu Tianjie Chen Hong Liu

Polyetheretherketone (PEEK) is a kind of synthetic thermoplastic polymer, because of its good biological compatibility, chemical stability and radiolucency, it has been widely used in the field of medicine. Compared with the titanium, the elastic modulus of PEEK is closer to human cortical bone, PEEK could be a viable alternative material for dental implants. Nevertheless the inherent bio-inert...

2009
Athina Bakopoulou Triantafillos Papadopoulos Pavlos Garefis

Resin-based dental restorative materials are extensively used today in dentistry. However, significant concerns still remain regarding their biocompatibility. For this reason, significant scientific effort has been focused on the determination of the molecular toxicology of substances released by these biomaterials, using several tools for risk assessment, including exposure assessment, hazard ...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2011
Jack L Ferracane

OBJECTIVES The objective is to review the current state of the art of dental composite materials. METHODS An outline of the most important aspects of dental composites was created, and a subsequent literature search for articles related to their formulation, properties and clinical considerations was conducted using PubMed followed by hand searching citations from relevant articles. RESULTS...

2016
Susanne Gerhardt-Szep Stefan Rüttermann Susanne Gerhardt

In recent years, the increasing demand for aesthetically appealing, naturally-coloured dental restoration options has given rise to a growth in the use of composites in the posterior dental area [1-5]. The declining acceptance of dental amalgam and the mercury problem also makes an alternative to amalgam necessary [6,7]. In a statement from the German Scientific Association for Operative Dentis...

2006
Yong-Keun Lee John M. Powers

The sizes for the perceptible or acceptable color difference measured with instruments vary by factors such as instrument, material, and color-difference formula. To compensate for disagreement of the CIELAB color difference ( E*ab) with the human observer, the CIEDE2000 formula was developed. However, since this formula has no uniform color space (UCS), DIN99 UCS may be an alternative UCS at p...

Journal: :Journal of endodontics 2016
Sainan Wang Qing Hu Xuejun Gao Yanmei Dong

INTRODUCTION This study aimed to evaluate the potential applications of polycaprolactone (PCL)/submicron bioactive glass (smBG) hybrid composites for pulp and dentin tissue regeneration. METHODS PCL/smBG hybrid composites were made with novel monodispersive bioactive glass submicrospheres, and pure PCL and bioactive glass samples were used as controls. Surface characteristics were assessed by...

Journal: :Operative dentistry 2010
Sebastian Hahnel Anne Henrich Ralf Bürgers Gerhard Handel Martin Rosentritt

This in vitro study investigated the aging behavior of dental composites with regard to surface roughness (SR), Vickers hardness (VH) and flexural strength (FS), and the study elucidated the impact of artificial aging parameters. One hundred and sixty-five rectangular specimens were prepared from five composites (Filtek Supreme XT, Filtek Silorane, CeramX, Quixfil, experimental ormocer) and sub...

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