نتایج جستجو برای: shear bond strength test

تعداد نتایج: 1109635  

Journal: :journal of dentistry, tehran university of medical sciences 0
zahra jaberi ansari associate professor, department of operative dentistry, dental school, shahid beheshti university of medical sciences, tehran, iran. narges panahandeh assistant professor, department of operative dentistry, dental school, shahid beheshti university of medical science, tehran, iran. zahra sadat tabatabaei shafiei dentist, department of basic sciences, faculty of rehabilitation sciences, shahid beheshti university of medical sciences, tehran, iran. alireza akbarzadeh baghban associate professor, department of basic sciences, faculty of rehabilitation sciences, shahid beheshti university of medical sciences, tehran, iran.

adequate bond strength between glass ionomer cements and composite resin is necessary for the success of the sandwich technique.this study assessed the micro-shear bond strength of composite resin to glass-ionomer cements (gic) using self-etch adhesives with different ph values.one hundred specimens (6×4×2 mm) were made using fuji ii and fuji ii lc gics and treated with different adhesives as f...

Journal: :journal of dental research, dental clinics, dental prospects 0
zahra jaberi-ansari maryam mehdilou maryam ahmadyar saeed asgary

background and aims: we aimed to assess the bond strength of composite resin to three pulp capping biomaterials; proroot mineral trioxide aggregate (pmta), root mta (rmta) and calcium enriched mixture (cem), using three bonding systems [a total etch (single bond) and two self-etch systems (protect bond and se bond)]. materials and methods: ninety acrylic moulds containing a 6×2 mm hole were div...

This investigation was aimed at studying the effect of test methods on bond strength between concrete substrate and repair material. Four test methods with cementations or modified-cementations repair materials, and two surface roughnesses were studied. The methods used were pull-off, slant shear, splitting prism and a new direct shear named Bi-Surface shear test. While the coefficient of varia...

ژورنال: مجله دندانپزشکی 2012
ابریشمی, آرزو, ستاری, هستی, شادمان, نیلوفر, فرزین ‌ابراهیمی, شهرام,

Background and Aims: The purpose of this experimental study was to investigate the shear bond strength of three new adhesive systems to enamel and dentin of permanent human teeth using three new etch and rinse and self-etch adhesive systems.Materials and Methods: Sixty intact caries-free third molars were selected and randomly divided into 6 groups. Flat buccal and lingual enamel and dentin sur...

Journal: :The journal of contemporary dental practice 2016
Fahad I Alkhudhairy Zeeshan H Ahmad

INTRODUCTION Various bulk-fill materials depending on their composition, viscosity, and flow ability have different physical and mechanical properties. The aim of this in vitro study was to determine and compare the shear bond strength and microleakage properties of activa restorative with other bulk-fill restorative materials surefil (SDR), Biodentine, ever X posterior. MATERIALS AND METHODS...

Journal: :journal of dental biomaterials 0
horieh moosavi associate professor, dental materials research center, operative dentistry department, school of dentistry, mashhad university of medical sciences, mashhad, iran. hila hajizadeh associate professor, operative dentistry department, school of dentistry, mashhad university of medical sciences, mashhad, iran. mina shaykhvasy school of dentistry, mashhad university of medical sciences, mashhad, iran.

abstract statement of problem: bleaching systems with different concentrations and applications are widely used to improve the visual appearance of the teeth, but one of the complications of these materials is reduction of bond strength for immediately bonding to the bleached enamel. objectives: the aim of this study was to evaluate the influence of using different modified hydrogen peroxide bl...

2014
Soodabeh Sadat Sajadi Gholamreza Eslami Amirabadi Sepideh Sajadi

OBJECTIVE Bond failure of brackets during orthodontic treatment is a common problem; which results in treatment interference, increased treatment time and prolonged clinical time for rebonding of failed brackets. The purpose of this study was to evaluate the effects of Coca-Cola and a non-alcoholic beer on the shear bond strength and adhesive remnant index (ARI) of orthodontic metal brackets in...

BACKGROUND AND AIM: According to the effect of the adhesive and substrate type on the bond strength, examination of the adhesive is required in all aspects. The aim of this study was to evaluate the shear bond strength of different adhesive systems to normal dentin (ND) and caries affected dentin (CAD) in permanent teeth. METHODS: Thirty extracted molars with small occlusal caries were selected...

ژورنال: مجله دندانپزشکی 2006
ایلخان, بانو , درریز, حسن ,

Background and Aim: The improvement of the physical and chemical properties of resins as well as great advances achieved in the field of chemical bonding of resin to metal has changed the trend of restorative treatments. Today the second generation of laboratory resins have an important role in the restoration of teeth. The clinical bond strength should be reliable in order to gain successful r...

Introduction: Effect of zinc oxide-eugenol (ZO-E) on bond strength of composite is equivocal. The aim of the present study was to determine if ZO-E affects shear bond strength. Methods: For the purposes of the study, extracted human molar teeth were ground so thatcomposite rods could be bonded to dentine. In group 1, dentine was not exposed to ZO-E. In group 2,...

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