نتایج جستجو برای: adhesives

تعداد نتایج: 6650  

Journal: :Dental materials : official publication of the Academy of Dental Materials 2011
Jonggu Park John Eslick Qiang Ye Anil Misra Paulette Spencer

OBJECTIVES The objective of this study was to investigate the influence of the chemical structure of methacrylate monomers used in dentin adhesives on degree of conversion (DC), water sorption, and dynamic mechanical properties. MATERIALS AND METHODS Experimental adhesives containing 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy) phenyl]-propane (BisGMA), 2-hydroxyethyl methacrylate (HEMA), and ...

2017
Qi Han Bolei Li Xuedong Zhou Yang Ge Suping Wang Mingyun Li Biao Ren Haohao Wang Keke Zhang Hockin H. K. Xu Xian Peng Mingye Feng Michael D. Weir Yu Chen Lei Cheng

The objectives of this study were to investigate the effects of dental adhesives containing quaternary ammonium methacrylates (QAMs) with different alkyl chain lengths (CL) on ecological caries prevention in vitro. Five QAMs were synthesized with a CL = 3, 6, 9, 12, and 16 and incorporated into adhesives. Micro-tensile bond strength and surface charge density were used to measure the physical p...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2009
Qiang Ye Jonggu Park Elizabeth Topp Paulette Spencer

OBJECTIVES Our previous study showed poor mechanical durability and nano-sized heterogeneities in cross-linked dentin adhesives cured in the presence of water. To further explore the relationship between nano-scale heterogeneities and the long-term mechanical properties of dentin adhesives, the properties of model dentin adhesives polymerized using hydrophilic photoinitiators were compared with...

Journal: :The Journal of family practice 2005
Douglas F Aukerman Wayne J Sebastianelli Joan Nashelsky

Tissue adhesives are effective and yield results comparable to those with conventional suturing of superficial, linear, and low-tension lacerations. The cosmetic outcome is similar; wound complications, such as infection and dehiscence, may be lower with tissue adhesives. Wound closure of superficial lacerations by tissue adhesives is quicker and less painful compared with conventional suturing...

Journal: :بینا 0
ناصر اوجی n owji شیراز- خیابان پوستچی- مرکز تحقیقات چشم پزشکی پوستچی فیصل راحت f rahat شیراز- خیابان پوستچی- مرکز تحقیقات چشم پزشکی پوستچی محمدرضا خلیلی mr khalili شیراز- خیابان پوستچی- مرکز تحقیقات چشم پزشکی پوستچی

purpose: to present our experience with cyanoacrylate tissue adhesive in eyes with exposed hydroxyapatite orbital implants. methods: cyanoacrylate tissue adhesive was used in 3 patients with hydroxyapatite orbital implant exposure defects. results: cyanoacrylate glue was applied on the defective area of 3 patients presenting with small exposure (<4mm). the patients were followed for 33 months (...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2014
Xueping Ge Qiang Ye Linyong Song Anil Misra Paulette Spencer

OBJECTIVES The objectives of this study were to synthesize two new siloxane-methacrylate (SM) monomers for application in dentin adhesives and to investigate the influence of different functionality of the siloxane-containing monomers on the adhesive photopolymerization, water sorption, and mechanical properties. METHODS Two siloxane-methacrylate monomers (SM1 and SM2) with four and eight met...

Journal: :Journal of dentistry 2011
Matthias J Roggendorf Norbert Krämer Andreas Appelt Michael Naumann Roland Frankenberger

OBJECTIVE This study evaluated marginal integrity of bonded posterior resin composite fillings to enamel and dentine with and without 4mm flowable base, before and after thermo-mechanical loading (TML). METHODS 80 MOD cavities with one proximal box beneath the CEJ were prepared in extracted human third molars. Direct resin composite restorations (SDR with CeramX mono, Tetric EvoCeram, Filtek ...

2011
Guang Hong Hiroki Tsuka Wei-Qi Wang Keiichi Sasaki

Purpose: The purpose of this study was to determine the initial viscosity and adhesive strength of commercial denture adhesives and oral moisturizers. Materials and Methods: Four cream-type denture adhesives, one gel-type denture adhesive and three gel-type oral moisturizers were used in the study. The initial viscosity was measured using a controlled-stress CarriMed CSL500 rheometer. The adhes...

Journal: :Science 2017
J Li A D Celiz J Yang Q Yang I Wamala W Whyte B R Seo N V Vasilyev J J Vlassak Z Suo D J Mooney

Adhesion to wet and dynamic surfaces, including biological tissues, is important in many fields but has proven to be extremely challenging. Existing adhesives are cytotoxic, adhere weakly to tissues, or cannot be used in wet environments. We report a bioinspired design for adhesives consisting of two layers: an adhesive surface and a dissipative matrix. The former adheres to the substrate by el...

2015
P Ranjith Kumar P A Shajahan Jyothis Mathew Anil Koruthu Prasad Aravind M Fazeel Ahammed

The use of denture adhesives is common among denture wearers, and it is also prescribed by many dentists. Prescribing denture adhesives has been viewed by many prosthodontists as a means of compensating for any defects in the fabrication procedures. Denture adhesives add to the retention and thereby improve chewing ability, reduce any instability, provide comfort and eliminate the accumulation ...

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