نتایج جستجو برای: tensile bond strength

تعداد نتایج: 281925  

2015

Carbon fiber reinforced polymers strengthen steel structural elements. These structural elements are normally subjected to static, dynamic and fatigue loadings during their life-time. CFRP laminate is commonly used structures under the subjected loads. A number of focused on the characteristics of CFRP sheets members under static, dynamic and fatigue loadings. is a gap in understanding the bond...

Journal: :The Angle orthodontist 2011
Marcel M Farret Eduardo Martinelli de Lima Eduardo G Mota Hugo M S Oshima Valdir Barth Silvia D de Oliveira

OBJECTIVE To test if the addition of chlorhexidine digluconate (CHD) might influence the mechanical properties and antibacterial properties of two different conventional glass ionomer cements (GICs) used for band cementation. MATERIALS AND METHODS Two commercial brands of conventional GICs were used: Ketac Cem Easymix (3M/ESPE, St Paul, Minn) and Meron (Voco, Cuxhaven, Germany). The cements w...

Journal: :journal of lasers in medical sciences 0
homayoon alaghehmand dental materials researches center, babol medical sciences university, babol, iran fatemeh nezhad nasrollah dental material research center, department of restorative dentistry, faculty of dentistry, babol university of medical sciences, babol,iran hanieh nokhbatolfoghahaei school of advanced technologies in medicine, shahid beheshti university of medical sciences, tehran, iran reza fekrazad laser research center in medical sciences (lrcms), department of periodontics, faculty of dentistry, aja university of medical sciences, tehran, iran & international network for photo medicine and photo dynamic therapy (inpmpdt), universal scientific education and research network (usern), tehran, iran

introduction: the aim of this study was to compare the micro-shear bond strength of composite resin on superficial and deep dentin after conditioning with phosphoric acid and erbium-doped yttrium aluminum garnet (er:yag) laser. methods: thirty human molars were selected, roots were removed and crowns were bisected to provide a total of 60 half-crowns. specimens were ground to expose superficial...

Journal: :Journal of materials science. Materials in medicine 2006
S Arici M Ozer N Arici Y Gencer

The introduction of air abrasion (sandblasting) technology to orthodontics may allow reaching optimum bond strength between the metal bracket and resin-modified glass ionomer cement. This study examined the effects of sandblasting metal bracket bases on the in vitro tensile bond strength of a resin-modified glass ionomer cement. Two-hundred foil-mesh based brackets were divided into ten groups ...

2014
Shaymaa E Elsaka Shaza M Hammad Noha F Ibrahim

BACKGROUND The purpose of this study was to determine the bond strength of different orthodontic bracket materials (ceramic, stainless steel, and titanium) as well as stresses developed in bracket-cement-enamel systems using finite element (FE) analysis. METHODS One hundred and thirty-five extracted human caries-free upper central incisors were divided into three groups (n = 45/group) accordi...

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