نتایج جستجو برای: bond strength materials

تعداد نتایج: 680533  

Javan, Mehdi, Kalalipoor, Maryam, Seyyedan, Kaveh,

Silane and bonding of Resins to Ceramic Dr. K. Seyyedan* - Dr. M. Kalalipoor** - Dr. M. Javan***Assistant Professor of Fixed Prosthodontics Dept., Faculty of Dentistry, Shaheed Beheshti University of Medical Sciences. **Resident of Fixed Prosthodontics Dept., Faculty of Dentistry, Shaheed Beheshti University of Medical Sciences. Background and Aim: When bonding between two different dental mate...

Ali Davoodi, Mohammad Javad Kharrazifard, Sima Shahabi, Stefano Benedicenti, Zahra Amiri,

Background and Aim: Bonding of zirconia to resin cement is challenging, and the zirconia surface requires surface treatment to yield an acceptable bond strength. This study aimed to evaluate the effect of different surface treatments on the bond strength of zirconia to a resin cement. Materials and Methods: In this in-vitro experimental study, 60 zirconia discs measuring 12 mm in diameter an...

2018
Rie YOKOMICHI Yohsuke TAIRA Kohyoh SOENO

The purpose of this study was to evaluate the effect of multi-step conditionillg (PA'AD conditioning) with phosphorie aeid and sodium hypochlorite on the bond strength of five Iuting materials to enamel and dentin. Three commercial self-etchingf priming systems (Panavia, Linkmax, and Multibond) and two experimental systems (EDfSuper-Bond and EDFefSuperBond) were used. The surfaces of bovine ena...

Journal: :journal of dentistry, tehran university of medical sciences 0
m.s. a. akhoundi f. mojtahedzadeh

bonding brackets to the enamel surface has gained much popularity today. new adhesive systems have been introduced and marketed and a considerable increase in research regarding bond strength has been published. a considerable amount of these studies deal with shear bond strength of adhesives designed for orthodontic purpose. previous studies have used variety of test designs. this diversity in...

Ali Eskandarizadeh, Mojtaba Rajaeinejad Razieh Hoseinifar Zahra Jalali,

Background & Aims: Repair of defective restoration is more conservative than replacing it. Veneering the amalgam restorations with opaque resin materials can satisfy the esthetic demands. Evaluation of interfacial bond quality between amalgam and composite surface is one of the important factors in assessing the quality of repaired amalgam which can be achieved...

ژورنال: مجله دندانپزشکی 2013
باقری, حسین , شهابی, سیما , عزیزی, نسیم , عسگری, زهره , قهرمانی, لقمان , نعمت اللهی, فاطمه ,

Background and Aims: Failure of bonding between artificial teeth and denture base material is a considerable problem for patients who wear dentures. According to the different impact of artificial teeth and different information about resistance force of mastication and also with deficiency in researchs, this study was designed to compare the bond strength of composite and acrylic artificial te...

Alireza Boruziniat Mahshid Gifani, Monavar Nasirzadeh, Mostafa Babazadeh

Aim: To determine the effect of different concentrations and application times of tannic acid on bond strength to dentin. Materials and Methods: Occlusal surfaces of 180 human molars were randomly divided into two groups of immediate shear bond strength evaluation and evaluation after 2 months of storage in collagenase solution. Each group was divided into 10 subgroups according to the solution...

Journal: :Brazilian dental journal 2015
Ana Rosa Costa Américo Bortolazzo Correr Simonides Consani Maria Cecília Caldas Giorgi Silvia Amélia Vedovello Mário Vedovello Filho Eduardo Cesar Almada Santos Lourenço Correr-Sobrinho

This study investigated the influence of water storage (24 h and 6 months), and Transbond XT and Fuji Ortho LC bonding materials on the bond strength of metallic brackets bonded to feldspathic ceramic. Four cylinders of feldspathic ceramic were etched with 10% hydrofluoric acid for 60 s. Each cylinder received two layers of silane. Metallic brackets were bonded to the cylinders using Transbond ...

Journal: :journal of dentistry, shiraz university of medical sciences 0
zahra khamverdi dental research center, dept. of operative dentistry, school of dentistry, hamedan university of medical sciences, hamedan, iran. loghman rezaei-soufi dept. of operative dentistry, school of dentistry, gilan university of medical sciences,gilan, iran. tayebeh rostamzadeh dept. of operative dentistry, school of dentistry, gilan university of medical sciences,gilan, iran.

statement of the problem: self-etch adhesives can activate matrix metalloproteinase (mmp) which hydrolyzes organic matrix of demineralized dentin. epigallocatechin gallate (egcg), especially found in green tea, could inhibit the activation of mmp. purpose: the aim of this study was to evaluate the effect of adding epigallocatechin gallate (egcg) into two types of adhesives on dentin bond streng...

Journal: :Acta of bioengineering and biomechanics 2016
Alicja Porenczuk Piotr Firlej Grażyna Szczepańska Adam Kolenda Dorota Olczak-Kowalczyk

PURPOSE More than half of the cavity restorations are replaced due to bacterial microleakage. A need for disinfection agents arises. Application of silver nanoparticles (AgNPs) may be beneficial, yet their impact on the adhesives' shear bond strength to dentin remains unknown. METHODS The aim was to assess the shear bond strength to dentin of different dental materials combined with AgNPs. Fa...

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