نتایج جستجو برای: tensile bond strength

تعداد نتایج: 281925  

Journal: :European journal of orthodontics 2001
H Miwa K Miyazawa S Goto T Kondo A Hasegawa

The aims of this study were to test the tensile bond strength of a recently developed veneer. Sound premolar teeth (120) extracted for orthodontic purposes were divided into two experimental and two control groups. In one experimental group (V1) 4-META/MMA-TBB resin (4META) was used on the surface veneer prepared with micro particle filled resin (MFR) as an adhesive for bracketing and in the se...

2014
Juan B. Rodríguez-Martínez María P. González-Rodríguez Santiago González-López Carmen M. Ferrer-Luque

OBJECTIVE The aim of this study was to determine the microtensile bond strength to root dentin of AH Plus™ and EndoREZ® with Clearfil Liner Bond 2V and Optibond Solo™ Plus adhesive systems. STUDY DESIGN The coronal and middle thirds of six single rooted bovine teeth was split longitudinally in a mesio-distal direction. The two halves were joined with AH Plus or EndoREZ, with and without the u...

Journal: :iranian endodontic journal 0
fereshte sobhnamayan alireza adl nooshin sadat shojaee samina gavahian

introduction: the aim of this in vitro study was to evaluate the effect of 2% chlorhexidine (chx) on the push-out bond strength (bs) of calcium-enriched mixture (cem) cement. methods and materials: root-dentin slices from 60 single-rooted human teeth with the lumen diameter of 1.3 mm were used. the samples were randomly divided into 4 groups ( n =15), and their lumens were filled with cem cemen...

1998

Ozone treatment of isotropic-pitch-based carbon fiber was found to increase the surface oxygen concentration and change surface oxygen from C–O to CNO, thereby causing the contact angle between fiber and water to be decreased to zero. Thus, the bond strength between fiber and cement paste was increased and the tensile strength, modulus and ductility of carbon fiber reinforced cement paste were ...

Ehsan Ghasemi Mansour Rismanchian Navid Haghayegh

Statement of the Problem: For a successful clinical outcome, luting agents should have a high bond strength. Bond failure is still one of the main reasons of restoration failures. Purpose: The present study was designed to comparatively evaluate the retention of metallic copings using different resin luting cements. Materials and Method: In the present experimental study, 40 intact premolar tee...

1999
Yunsheng Xu

Mortar with high workability even without a water-reducing agent and with high tensile and compressive strengths (3.1 and 78 MPa, respectively) was obtained by using as an admixture silica fume that had been surface treated with a silane coupling agent. The treatment enhanced the wettability of silica fume by water, thereby increasing the workability of the mortar mix. It also enhanced the bond...

2009
Marina Xavier Pisani Raphael Freitas de Souza Cláudia Helena Silva-Lovato

Correspondence to: Cláudia Helena Lovato da Silva Departamento de Materiais Dentários Faculdade de Odontologia de Ribeirão Preto, USP Av. do Café, S/N, 14040-904, Ribeirão Preto, SP, Brasil Tel: +55-16-3602-4006 Fax: +55-16-3633-0999. E-mail: [email protected] Abstract Aim: This study aim to investigate the effect of a denture cleanser on hardness, roughness and tensile bond strength of a rigid (...

2016
Ticha Thongrakard Chairat Wiwatwarrapan

PURPOSE This study evaluated the effect of chemical surface treatment using methyl formate-methyl acetate (MF-MA) solution on the tensile bond strength between acrylic denture teeth and auto-polymerized acrylic resin. MATERIALS AND METHODS Seventy maxillary central incisor acrylic denture teeth for each of three different brands (Yamahachi New Ace; Major Dent; Cosmo HXL) were embedded with in...

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