نتایج جستجو برای: etch system

تعداد نتایج: 2234180  

Journal: :dental research journal 0
vajihesadat mortazavi mohammadhossein fathi fereidon soltani

background: bleaching the discoloured teeth may affect the tooth/composite interface. the aim of this in vitro experimental study was to evaluate the effect of vital tooth bleaching on microleakage of existent class v composite resin restorations bonded with three dental bonding agents.     methods: class v cavities were prepared on buccal surfaces of 72 intact, extracted human anterior teeth w...

2013
Yahya Orcun Zorba Nurcan Ozakar Ilday Yusuf Ziya Bayındır Sezer Demirbuga

OBJECTIVE The aim of this study was to test the null hypothesis that different surface conditioning (etch and rinse and self-etch) and curing techniques (light cure/dual cure) had no effect on the shear bond strength of direct and indirect composite inlays. MATERIALS AND METHODS A total of 112 extracted human molar teeth were horizontally sectioned and randomly divided into two groups accordi...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2005
Bart Van Meerbeek Padmini Kanumilli Jan De Munck Kirsten Van Landuyt Paul Lambrechts Marleen Peumans

OBJECTIVES The purpose of this randomized controlled clinical trial was to test the hypothesis that a two-step self-etch approach is equally effective to restore cervical class-V lesions as a self-etch approach with beforehand selective etching of enamel using phosphoric acid. METHODS Twenty-nine patients received two or four restorations randomly following two experimental protocols ('paired...

Journal: :Brazilian dental journal 2004
Vanessa Gallego Arias Inger Teixeira Campos Luiz André Freire Pimenta

The purpose of this in vitro study was to evaluate the efficacy of three hydrophilic dentin adhesive systems to reduce class II restoration microleakage. A total of 60 human molar teeth were used in which two box cavities were made on the distal and mesial surfaces, with a cervical margin in dentin. These cavities were randomly divided into 3 groups (n = 40 each), according to adhesive system t...

Journal: :Brazilian dental journal 2007
Márcio Antônio Paraizo Borges Irma Cunha Matos Kátia Regina Hostílio Cervantes Dias

The aim of this study was to compare two self-etching and a total-etch adhesive systems by assessing their shear bond strength to bovine enamel and the microleakage on class V composite restorations prepared on bovine enamel. Bovine teeth selected and allocated in three groups: Group 1: Scothbond Multi-Purpose; Group 2: Clearfil Liner Bond 2V; Group 3: Etch & Prime 3.0. For the microleakage tes...

2011
Cafer TÜRKMEN Meral DURKAN Hale CİMİLLİ Mustafa ÖKSÜZ

OBJECTIVE The aims of this study were to evaluate the tensile bond strengths between indirect composites and dentin of 3 recently developed self-adhesive resin cements and to determine mode of failure by SEM. MATERIAL AND METHODS Exposed dentin surfaces of 70 mandibular third molars were used. Teeth were randomly divided into 7 groups: Group 1 (control group): direct composite resin restorati...

Barakatin, Mehrdad, Farjampour, Paria, Malekypour, Mohammad Reza,

Shear bond strength of dentin bonding agents to coronal and radicular dentin Dr. M. Barakatin * - Dr. MR. Malekypour * - Dr. P. Farjampour ** *Assistant Professor of Operative Dentistry & Dental Materials Dept., Faculty of Dentistry, Azad University (Khorasgan). ** Dentist. Abstract Background and Aim: The purpose of this study was to compare the shear bond strength of three bonding agents know...

Journal: :Brazilian oral research 2015
Janaina Barros Cruz Gabriela Bonini Tathiane Larissa Lenzi José Carlos Pettorossi Imparato Daniela Prócida Raggio

This in vitro study evaluated the immediate and 6 months microshear bond strength (µSBS) of different adhesive systems to sound and eroded dentin. Sixty bovine incisors were embedded in acrylic resin and ground to obtain flat buccal dentin surfaces. Specimens were randomly allocated into two groups: sound dentin (immersion in artificial saliva) and eroded dentin (erosive challenge following a p...

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