نتایج جستجو برای: adhesive strength

تعداد نتایج: 225680  

2017
Bruna Gabrielle da Silva Sutil Alexandre Henrique Susin

OBJECTIVES To evaluate the effects of dentin pretreatment and temperature on the bond strength of a universal adhesive system to dentin. MATERIAL AND METHODS Ninety-six extracted non-carious human third molars were randomly divided into 12 groups (n=8) according to Scotchbond Universal Adhesive (SbU) applied in self-etch (SE) and etch-and-rinse (ER) mode, adhesive temperature (20°C or 37°C) a...

ژورنال: مجله دندانپزشکی 2009
جعفرزاده کاشی, طاهره سادات, عرفان, محمد, نزادی نیاسر, الهیار,

Background and Aim: Evaluation of shear bond strength and microleakage of bonding agents is important as these properties play main roles in adhesion of composite to dental tissues. Microleakage results in bacterial penetration into dentin tubules and enamel surfaces and causes sensitivity and recurrent caries followed by destruction of composite filling. Insufficient shear bond strength result...

Journal: :journal of dentistry, tehran university of medical sciences 0
z. jaberi ansari ar. sadr

objective: this study evaluated the influence of storage time on micro-shear bond strength of two self-etching materials to enamel and dentin. materials and methods: human third molar teeth were sectioned to 1.5 mm thick beams and randomly divided into 2 groups. in group i, se bond and in group ii, tri-s bond was used to bond a composite rod (ap-x) to each treated surface. specimens were prepar...

Composites are being used extensively in several engineering applications. However, the efficiency of the joints used in joining composites and metals can be improved. To move towards a sustainable and environment friendly future, natural fibre composite material was used. Towards the above objective, research work was carried out for the assembly between a composite and aluminium. Three differ...

2011
A. Mubashar I. A. Ashcroft G. W. Critchlow A. D. Crocombe

The durability of adhesive joints is of special concern in structural applications and moisture has been identified as one of the major factors affecting joint durability. This is especially important in applications where joints are exposed to varying environmental conditions throughout their life. This paper presents a methodology to predict the stresses in adhesive joints under cyclic moistu...

Journal: :Science and technology of advanced materials 2012
Takahito Inoue Tetsushi Taguchi Shinji Imade Nobuyuki Kumahashi Yuji Uchio

We have investigated the effectiveness and safety of a newly developed biological adhesive for repair of meniscal tear. The adhesive was composed of disuccinimidyl tartrate (DST) as a crosslinker and human serum albumin (HSA) as a hardener. To determine adequate concentration, bonding strength was measured using a tensiometer 5 min after applying the adhesive on the avascular zone tear of porci...

Journal: :journal of dentistry, tehran university of medical sciences 0
h. kermanshah assistant professor, dental research center and operative department, faculty of dentistry, tehran u sh. ghabraei endodontic department, faculty of dentistry, tehran university of medical sciences t. bitaraf research assistant, dental research center, faculty of dentistry, tehran university of medical scien

objective: this study evaluated the effect of saliva contamination during bonding procedures without removing saliva on shear dentin bond strength of three adhesive generations when rubber dam isolation is not feasible. materials and methods: flat superficial dentin surfaces of seventy-two extracted human molars were randomly divided into three groups (a: scotch bond mp plus (sbmp), b: single b...

2017
Ozgur Irmak Ozge Celiksoz Begum Yilmaz Batu Can Yaman

Purpose This study evaluated the effects of different adhesive systems on repair bond strength of aged resin composites. Materials and Methods Ninety composite discs were built and half of them were subjected to thermal aging. Aged and non-aged specimens were repaired with resin composite using three different adhesive systems; a two-step self-etch adhesive, a two-step total-etch adhesive and...

2015
Swagata Das

Aim: To assess the influence of two adhesive systems on the bond strength of the restorative material to enamel and dentin after bleaching. Materials and method: 60 non-carious extracted premolar teeth after bleaching with 40% Hydrogen peroxide were divided into four groups based on type of adhesive system used and the tooth surface i.e. enamel and dentin used for bonding. G1ET and G3DT were re...

ژورنال: مجله دندانپزشکی 2009
امیدی, کاوه, جعفری, مریم, موسوی نسب, سید مجید, پیشه‌ور, لیلا,

Background and Aim: Sodium hypochlorite can remove the organic phase of the demineralized dentin and it produces direct resin bonding with hydroxyapatite crystals. Therefore, the hydrolytic degradation of collagen fibrils which might affect the bonding durability is removed. The aim of this study was to evaluate the effect of collagen fibrils removal by 10% NaOCl on dentin shear bond strength o...

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