نتایج جستجو برای: Silanization

تعداد نتایج: 276  

Journal: :The journal of advanced prosthodontics 2016
Jung-Hoon Pyun Tae-Bong Shin Joo-Hee Lee Kang-Min Ahn Tae-Hyung Kim Hyun-Suk Cha

PURPOSE To evaluate the effects of hydrogen peroxide pretreatment and heat activation of silane on the shear bond strength of fiber-reinforced composite posts to resin cement. MATERIALS AND METHODS The specimens were prepared to evaluate the bond strength of epoxy resin-based fiber posts (D.T. Light-Post) to dual-curing resin cement (RelyX U200). The specimens were divided into four groups (n...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2005
Yusuke Nakano Shinya Kitagawa Kanji Miyabe Takao Tsuda

The performance of an open-tubular capillary column coated with a modified silica-gel thin layer was investigated, particularly concerning the effect of the silanization process on it. Although the increase in the octadecyltriethoxysilane (ODTES) concentration in the silanization process could enhance the retention factor of naphthalene, its theoretical plate number was significantly reduced (O...

Journal: :Dental materials journal 2012
Pisaisit Chaijareenont Hidekazu Takahashi Norihiro Nishiyama Mansuang Arksornnukit

The objective of this study was to clarify the effects of silane coupling agents and solutions of different polarity on polymethyl methacrylate (PMMA) bonding to alumina. Three silane coupling agents (3-methacryloxypropyltrimethoxysilane (MPS),3-aminopropyltriethoxysilane (APS) and N-2 (aminoethyl) 3-aminopropyltriethoxysilane) and 3 different polar solutions, 70% ethanol, isopropanol and tolue...

Journal: :Brazilian dental journal 2015
Samantha Schaffer Pugsley Baratto Denis Roberto Falcão Spina Carla Castiglia Gonzaga Leonardo Fernandes da Cunha Adilson Yoshio Furuse Flares Baratto Filho Gisele Maria Correr

The aim of this study was to evaluate the effect of silanization protocols on the bond strength of two resin cements to a lithium disilicate glass-ceramic. Thirty-two ceramic discs were assigned to 2 groups (n=16): G1 - dual-cured resin cement and G2 - light-cured resin cement. Four subgroups were evaluated according to the used silanization protocol. The glass-ceramic was etched with 10% hydro...

Journal: :Journal of endodontics 2006
Francesca Monticelli Manuel Toledano Franklin R Tay Fernanda T Sadek Cecilia Goracci Marco Ferrari

Coupling of fiber posts to composites is hampered by absence of chemical union between epoxy resins and methacrylate-based resins. This study examined a clinically feasible protocol for creating micromechanical retention on the surface of fiber posts, using hydrogen peroxide etching to remove the surface layer of epoxy resin. This was followed by silanization of the exposed quartz fibers to enh...

Journal: :Journal of biomedical materials research. Part B, Applied biomaterials 2008
Regina Amaral Mutlu Ozcan Luiz Felipe Valandro Ivan Balducci Marco Antonio Bottino

The objective of this study was to evaluate the durability of bond strength between a resin cement and aluminous ceramic submitted to various surface conditioning methods. Twenty-four blocks (5 x 5 x 4 mm(3)) of a glass-infiltrated zirconia-alumina ceramic (In-Ceram Zirconia Classic) were randomly divided into three surface treatment groups: ST1-Air-abrasion with 110-mum Al2O3 particles + silan...

2008
C. A. García-González A. M. López-Periago J. Saurina C. Domingo

Nanometric titanium dioxide (TiO2) powder has been treated on the surface with octyltriethoxysilane in a supercritical carbon dioxide (scCO2) medium. The surface silanization conferred water repellency to the TiO2 powder. The effect of operating variables of the supercritical silanization process (pressure, temperature) on the surface characteristics of the material was analyzed. Finally, the e...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2006
Regina Amaral Mutlu Ozcan Marco Antonio Bottino Luiz Felipe Valandro

OBJECTIVES This study evaluated the effect of three surface conditioning methods on the microtensile bond strength of resin cement to a glass-infiltrated zirconia-reinforced alumina-based core ceramic. METHODS Thirty blocks (5 x 5 x 4 mm) of In-Ceram Zirconia ceramics (In-Ceram Zirconia-INC-ZR, VITA) were fabricated according to the manufacturer's instructions and duplicated in resin composit...

2014
Hanaa Zaghloul Dina Wafik Elkassas Mohamed Fouad Haridy

OBJECTIVE To investigate the repair potential of CAD/CAM (computer-aided design/computer-aided manufacturing) ceramic and composite blocks using a silane-containing bonding agent with different repair protocols. MATERIALS AND METHODS Twenty-four discs were constructed from CAD/CAM ceramic and composite blocks. The discs were divided into six groups according to surface pre-treatment employed;...

2013
Hyun-Dong Kim Joo-Hee Lee Kang-Min Ahn Hee-Sun Kim Hyun-Suk Cha

PURPOSE Among the surface treatment methods suggested to enhance the adhesion of resin cement to fiber-reinforced composite posts, conflicting results have been obtained with silanization. In this study, the effects of silanization, heat activation after silanization, on the bond strength between fiber-reinforced composite post and resin cement were determined. MATERIALS AND METHODS Six group...

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