نتایج جستجو برای: bond strength materials

تعداد نتایج: 680533  

Ali Heidari, Ali Nozari, Azade Rafiee,

Introdouction: Esthetic demands of patients have led to the introduction of tooth-colored restorations wherecomposite resins are bonded to the enamel using acid etch techniques. Total etch adhesion systems are still considered as the gold standard among bonding systems. However, clinicians have a tendency to use adhesive systems with simpler application procedures. The aim of the present stu...

Journal: :Journal of oral science 2010
Hiroyasu Koizumi Daisuke Nakayama Yusuke Oba Kazuya Yamada Hideo Matsumura

The present study was conducted to evaluate the effect of acidic primers on adhesive bonding to sintered alumina. Alumina disk specimens were primed with one of the following acidic materials: Acryl Bond, All Bond II Primer B, Alloy Primer, Estenia Opaque Primer, Eye Sight Opaque Primer, M.L. Primer, MR. Bond, and Super-Bond Liquid. The disks were bonded with an adhesive resin (Super-Bond) init...

Journal: :The journal of contemporary dental practice 2011
Siavash Savadi Oskoee Soodabeh Kimyai Mahmoud Bahari Paria Motahari Mohammad Jafar Eghbal Saeed Asgary

AIM Adhesion of composite resin and pulp capping biomaterials remarkably influences treatment outcomes. This in vitro study aimed to compare the shear bond strength of composite resin to calcium enriched mixture (CEM) cement, mineral trioxide aggregate (MTA) and resin modified glass ionomer (RMGI) with or without acid etching. MATERIALS AND METHODS A total of 90 cylindrical acrylic blocks con...

Journal: :dental research journal 0
maryam khoroushi moeen hosseini-shirazi hojatolah soleimani

background: polymerization of resin‑modified glass‑ionomers (rmgis) is mediated through two competing mechanisms: an acid‑base reaction and a light‑dependent resin polymerization. furthermore, pre‑conditioning with acid has resulted in an increase in enamel bond strength of some rmgis. this in vitro study evaluated the effect of pre‑conditioning and/or delayed irradiation on bond strength of th...

Ali Eskandari zadeh, Maryam Mofidi, Mona Norozy, Niloofar Shademan, Safa Manafi,

Background and Aim: Data regarding the efficacy of universal adhesives are limited. This study aimed to assess the durability of a universal adhesive bond to superficial dentin using etch and rinse and self-etch modes. Materials and Methods: In this in vitro, experimental study, 32 sound molars were randomly divided into two groups of Scotchbond Universal adhesive with two-step etch and rins...

2016
Heba A. El-Deeb Radwa M. Ghalab Mai M. Elsayed Akah Enas H. Mobarak

The reparability of dual-cured resin composite core buildup materials using a light-cured one following one week or three months storage, prior to repair was evaluated. Two different dual-cured resin composites; Cosmecore™ DC automix and Clearfil™ DC automix core buildup materials and a light-cured nanofilled resin composite; Filtek™ Z350 XT were used. Substrate specimens were prepared (n = 12/...

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...

ژورنال: مجله دندانپزشکی 2014
روحانیان, احمد , عزیزی, امیر , نوکار, سعید ,

  Background and Aims: Nowadays, the application of all ceramic restorations are being raised, because of their physical characteristics, such as translucency and good appearance. Numerous researchers investigated the impact of surface treatments on the bond strength of zirconia ceramic with resin cements. The aim of this study was to compare the microshear bond strength of Cercon and Zirkonzah...

ژورنال: مجله دندانپزشکی 2005
ملکان, الهه , یاسینی, اسماعیل ,

Statement of Problem: The use of dentine bondings on enamel and dentin in total etch protocols has recently become popular. Unfilled resin is hydrophobic and dentin bonding is hydrophilic in nature. This chemical difference could be effective in enamel bonding process. Purpose: The aim of this study was to compare the shear bond strength of unfilled resin to dry enamel and dentin bonding to dry...

2016
Shiai Xu Xiaoxue Song Yangben Cai

In order to enhance the compatibilization and interfacial adhesion between epoxy and liquid carboxyl-terminated butadiene acrylonitrile (CTBN) rubber, an initiator was introduced into the mixture and heated to initiate the cross-linking reaction of CTBN. After the addition of curing agents, the CTBN/epoxy blends with a localized interpenetrating network structure were prepared. The mechanical p...

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