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https://www.readbyqxmd.com/read/30517070/impact-of-recently-developed-universal-adhesives-on-tensile-bond-strength-to-computer-aided-design-manufacturing-ceramics
#1
A Liebermann, J Detzer, B Stawarczyk
OBJECTIVES: The aim of this investigation was to test the tensile bond strength (TBS) between different computer-aided-design/manufacturing (CAD/CAM) ceramics after conditioning using different universal adhesive systems and resin composite cement. METHODS AND MATERIALS: Substrates of four CAD/CAM ceramics-1) VITABLOCS Mark II, 2) Initial LRF, 3) Celtra Duo, and 4) IPS e.max CAD (N=648, n=162)-were fabricated. VITABLOCS Mark II and Initial LRF were etched using 9% hydrofluoric acid for 60 seconds, Celtra Duo for 30 seconds, and IPS e...
December 5, 2018: Operative Dentistry
https://www.readbyqxmd.com/read/30511468/bond-strength-between-composite-repair-and-polymer-infiltrated-ceramic-network-material-effect-of-different-surface-treatments
#2
Yuri Dal Bello, Marielle B Di Domenico, Leticia Dal Magro, Mônica W Lise, Pedro H Corazza
OBJECTIVE: To evaluate the bond strength of a polymer-infiltrated ceramic-network (PICN) material and to composite repair after different surface treatments. MATERIALS AND METHODS: Eighteen blocks of the PICN material were obtained from CAD/CAM blocks, aged and randomly divided into 2 groups: 5% hydrofluoric acid (HF) or sandblasting with aluminum oxide particles (SAND). For each condition, three treatments were tested: silane (Sil), silane-containing adhesive (Ad), or silane + silane-containing adhesive (SilAd)...
December 3, 2018: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/30511051/qualitative-and-quantitative-evaluation-of-cytotoxicity-of-five-different-one-step-self-etching-adhesives
#3
Zehra Süsgün Yıldırım, Şeyhmus Bakır, Elif Bakır, Egemen Foto
PURPOSE: To qualitatively and quantitatively compare the cytotoxic potentials of five different one-step self-etching adhesives: Prime&Bond One-Select (PB-OS), Optibond All-in-One (OB-AIO), G-Bond (GB), Clearfil Universal Bond (CUB), Single Bond Universal (SBU). MATERIALS AND METHODS: During the first stage of the study, the cytotoxic activities of the test materials were evaluated qualitatively using the direct contact method. In this method, the test materials were placed directly into a monkey kidney epithelial cell culture medium...
December 3, 2018: Oral Health & Preventive Dentistry
https://www.readbyqxmd.com/read/30508652/hysteroscopic-placement-of-platinum-microinsert-in-patients-with-hydrosalpinx-before-in-vitro-fertilization-and-embryo-transfer
#4
Hui Chen, Wanjun Jiang, Ge Lin, Guangxiu Lu, Fei Gong
STUDY OBJECTIVE: To investigate the effectiveness of Tornado and Hilal (Cook Medical, Bloomington, Indiana, USA) hysteroscopic proximal tubal occlusion (HPTO) for hydrosalpinx (HX) treatment prior to in vitro fertilization (IVF) and embryo transfer (ET) in patients with dense pelvic adhesions or low ovarian reserve. DESIGN: Retrospective study of patients treated between May 2014 and May 2016 (Canadian Task Force classification III). SETTING: University-affiliated center...
November 30, 2018: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/30507172/self-sorting-of-amphiphilic-copolymers-for-self-assembly-materials-in-water-polymer-can-recognize-itself
#5
Shota Imai, Mikihito Takenaka, Mitsuo Sawamoto, Takaya Terashima
Amphiphilic random copolymers bearing hydrophilic poly(ethylene glycol) (PEG) and hydrophobic alkyl pendants showed dynamic self-sorting behavior, i.e., self-recognition, under competitive conditions in aqueous media. The self-sorting universally takes place not only in water but also in hydrogels and on the material surfaces, according to encoded information originating from the primary structure of composition and pendants. Binary blends of the copolymers with different composition and/or alkyl pendants readily induced com-position and/or alkyl pendant-dependent self-sorting to simultaneously provide discrete and size-controlled micelles with hydrophobic cores...
December 3, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/30505989/investigation-of-importance-of-the-structural-parameters-of-the-eyeball-and-of-the-technical-parameters-of-cataract-surgery-on-corneal-endothelial-changes
#6
Razvan Vladimir Nanu, Emil Ungureanu, Sinziana Luminita Istrate, Alexandra Vrapciu, Roxana Cozubas, Laura Carstocea, Liliana Mary Voinea, Radu Ciuluvica
The aim of the here presented study was to look into the importance of the structural parameters of the eyeball, in relationship with the technical parameters of cataract surgery regarding the corneal endothelial changes made by it. Material and method: The paper refers at a prospective study in which we included eighty-eight consecutive eyes from eighty-six different patients having age-related cataract and a visual acuity of a values less than 0.8 considering best possible correction with it. The patients didn't have other obvious causes for the decreased visual acuity...
July 2018: Romanian Journal of Ophthalmology
https://www.readbyqxmd.com/read/30505932/comparison-of-early-and-delayed-eus-guided-drainage-of-pancreatic-fluid-collection
#7
Tanyaporn Chantarojanasiri, Natsuyo Yamamoto, Yousuke Nakai, Tomotaka Saito, Kei Saito, Ryunosuke Hakuta, Kazunaga Ishigaki, Tsuyoshi Takeda, Rie Uchino, Naminatsu Takahara, Suguru Mizuno, Hirofumi Kogure, Saburo Matsubara, Minoru Tada, Hiroyuki Isayama, Kazuhiko Koike
Background and study aims  While endoscopic ultrasound (EUS)-guided drainage of pancreatic fluid collection (PFC) is recommended to be performed ≥ 4 weeks after onset of acute pancreatitis (AP), early (< 4 weeks) interventions are needed in some symptomatic cases. Despite feasibility of early percutaneous drainage, there have been few studies about early EUS-guided drainage of PFC. Patients and methods  Consecutive patients who received EUS-guided drainage (EUS-PCD) of infected or symptomatic PFC at the University of Tokyo were retrospectively studied...
December 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/30504693/comparison-of-the-micro-tensile-bond-strengths-of-four-different-universal-adhesives-to-caries-affected-dentin-after-er-yag-laser-irradiation
#8
Nazmiye Dönmez, Ayça Sarıalioğlu Güngör, Barış Karabulut, Şeyda Hergüner Siso
The micro-tensile bond strengths (micro-TBSs) of four universal adhesive systems, applied in two different bonding techniques, to carries-affected dentin after Er:YAG laser irradiation were investigated. Twenty-four extracted human molars were divided into four groups, according to the adhesive systems used. Each group was subdivided into two subgroups, depending on the bonding method used: the etch-and-rinse procedure or self-etch procedure. The carious lesions were irradiated using an Er:YAG laser. Resin composites were used to restore the adhesive-treated dentin surfaces...
December 1, 2018: Dental Materials Journal
https://www.readbyqxmd.com/read/30503111/reproductive-performance-after-the-application-of-hyaluronic-acid-gel-after-dilation-and-curettage-in-women-who-have-experienced-at-least-one-previous-curettage-long-term-results-of-a-multicenter-prospective-randomized-trial
#9
Angelo B Hooker, Robert A de Leeuw, Peter M van de Ven, Hans A M Brölmann, Judith A F Huirne
OBJECTIVE: To examine whether intrauterine application of auto-cross-linked hyaluronic acid (ACP) gel after dilation and curettage (D&C) improves reproductive performance. DESIGN: Multicenter prospective randomized trial. SETTING: One university and seven university-affiliated teaching hospitals. PATIENT(S): A total of 149 women who have experienced a miscarriage at <14 weeks of gestation, with at least one previous D&C for miscarriage or termination of pregnancy, were randomly assigned to either D&C plus ACP gel (intervention group) or D&C alone (control group)...
December 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/30499405/exploring-the-biology-and-structural-architecture-of-sortase-roleon-biofilm-formation-in-gram-positive-pathogens
#10
Chandrabose Selvaraj, Ramanathan Bharathi Priya, Sanjeev Kumar Singh
Gram-positive bacteria signify a surface organelle that decorates the cell surfaces using Sortase enzymes. The mechanism of SrtC lings to the formation of amide or peptide bonds between cell surface proteins that sorting signal to strategically positioned amino groups. Sorting signals linked to peptidoglycan function as the principal architects of cell wall and facilitate each microbe to effectively interact with its host environment. These enzymes play a fundamental role in microbial physiology and interestingly, sequence analysis on Gram-positive bacteria implies that approximately 60% of sortases are categorized into six families, and from that SrtA and SrtC are widely investigated in various literatures...
November 30, 2018: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/30498372/the-effects-of-different-irrigation-solutions-on-the-bond-strength-of-cemented-fiber-posts
#11
Fahad I Alkhudhairy, Peter Yaman, Joseph Dennison, Neville McDonald, Alberto Herrero, Mohammed S Bin-Shuwaish
Objective: To study effect of root canal irrigant solutions on the bond strength of cemented fiber posts, and resin cement-tags in root canal dentin. Materials and methods: Fifty-two human single-rooted anterior teeth were selected and stored in 1% sodium azide. Crowns were sectioned 2 mm incisal to the cemento enamel junction with diamond bur at high speed under water-cooling. After standard root canal treatment to tested teeth, they were randomly assigned into four groups (n=13) corresponding to the endodontic irrigant solution that was used during post space preparation...
2018: Clinical, Cosmetic and Investigational Dentistry
https://www.readbyqxmd.com/read/30498181/effect-of-er-yag-laser-sandblast-and-several-types-of-universal-bonding-on-shear-bond-strength-of-zirconia-ceramic-to-composite-resin
#12
Loghman R Sofi, Reza Fekrazad, Mahdi Akbarzadeh, Marjan Maleki
AIM: The purpose of this study was to investigate the effect of Erbium-doped yttrium aluminium garnet laser laser (Er: YAG laser), sandblast and several universal bonding on the shear bond strength of zirconia ceramic to composite resin. MATERIALS AND METHODS: In this experimental study, 96 Y-TZP disks were used. They were divided into six groups based on surface preparation: 1-Er: YAG laser + single bond universal/ 3M, 2-Er: YAG laser + all bond universal/bisco, 3-Er: YAG laser + G-premio bond/GC, 4-sandblast + single bond universal/3M, 5-sandblast + all bond universal/bisco, 6-sandblast + G-Premio bond/GC; in the next step, composite discs were cured on the surface of the zirconia discs and their shear bond strength was evaluated using a mechanical test machine (universal testing machine)...
October 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/30484636/analyzing-solid-phase-natural-organic-matter-using-laser-desorption-ionization-ultrahigh-resolution-mass-spectrometry
#13
Nissa Nurfajrin Solihat, Thamina Acter, Donghwi Kim, Alain F Plante, Sunghwan Kim
Extensive sample preparation procedures are required to analyze natural organic matter (NOM) in soil and sediment samples due to the mineral matrix. The preparation procedure not only requires a large amount of sample (typically more than 50 mg) but also incomplete extraction of the organic can be done. In this study, 2-5 μg solid NOM or 500 μg unprocessed soil samples were fixed on a metal plate using double adhesive tape and analyzed directly using laser desorption ionization (LDI) and ultrahigh resolution mass spectrometry (UHR-MS)...
November 28, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/30474821/-1-h-15-n-13-c-resonance-assignment-of-the-human-cd44-cytoplasmic-tail-669-742
#14
Benjamin Frühbauer, Borja Mateos, Robert Konrat
CD44 is a universally and abundantly expressed single-pass type I protein that spans the cytoplasmic membrane and is considered the principal receptor for hyaluronan in the extracellular matrix. CD44 exerts a multitude of biological functions, especially in cell adhesion and migration, and its deregulation has several pathological implications, including a putative role in cancer cell dissemination. Here we report the NMR chemical shift assignment of the recombinant intrinsically disordered CD44 cytoplasmic region (669-742)...
November 24, 2018: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/30469323/dops-adjuvant-confers-enhanced-protection-against-malaria-for-vlp-trap-based-vaccines
#15
Gustavo Cabral-Miranda, Ahmed M Salman, Mona O Mohsen, Federico L Storni, Elisa S Roesti, Murray A Skinner, Matthew D Heath, Matthias F Kramer, Shahid M Khan, Chris J Janse, Adrian V S Hill, Martin F Bachmann
Vaccination remains the most effective and essential prophylactic tool against infectious diseases. Enormous efforts have been made to develop effective vaccines against malaria but successes remain so far limited. Novel adjuvants may offer a significant advantage in the development of malaria vaccines, in particular if combined with inherently immunogenic platforms, such as virus-like particles (VLP). Dioleoyl phosphatidylserine (DOPS), which is expressed on the outer surface of apoptotic cells, represents a novel adjuvant candidate that may confer significant advantage over existing adjuvants, such as alum...
November 21, 2018: Diseases (Basel)
https://www.readbyqxmd.com/read/30465339/-effects-of-bond-strength-evaluation-on-different-durations-of-adult-permanent-teeth-and-youth-permanent-teeth-by-using-universal-adhesives-to-dentin
#16
Yuan Sun, He Liu, Zhi-Hui Sun
OBJECTIVE: To compare the dentin bonding strength evaluation between adult permanent teeth and youth permanent teeth after treatment for different durations by universal adhesives. METHODS: Ten adult permanent teeth and ten youth permanent teeth were selected for this study. The occlusal enamel layer was removed, and each tooth was cut into three pieces along the long axis. In total, 30 pieces of adult and youth teeth were prepared. The adult and youth teeth pieces were randomly divided into three groups and treated by universal adhesives for 10, 20, and 30 s...
October 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/30457947/benefits-of-nonthermal-atmospheric-plasma-treatment-on-dentin-adhesion
#17
A P Ayres, P H Freitas, J De Munck, A Vananroye, C Clasen, Ct Dos Santos Dias, M Giannini, B Van Meerbeek
OBJECTIVES: This study aimed to evaluate the influence of two nonthermal atmospheric plasma (NTAP) application times and two storage times on the microtensile bond strength (μTBS) to dentin. The influence of NTAP on the mechanical properties of the dentin-resin interface was studied by analyzing nanohardness (NH) and Young's modulus (YM). Water contact angles of pretreated dentin and hydroxyapatite blocks were also measured to assess possible alterations in the surface hydrophilicity upon NTAP...
November 2018: Operative Dentistry
https://www.readbyqxmd.com/read/30451718/patient-experiences-with-handling-of-analgesic-transdermal-patches-and-challenges-in-correct-drug-administration-a-pilot-study-on-patient-education
#18
Anette Lampert, Jens Kessler, Phoebe Washington-Dorando, Hubert J Bardenheuer, Emilia M Bocek Eknes, Johannes Krisam, Walter E Haefeli, Hanna M Seidling
BACKGROUND: Although problems during transdermal patch administration are primarily caused by insufficient knowledge, patient education programs are lacking. We compared patient education by a clinical pharmacist on knowledge on correct patch administration with routine counseling during patient-physician consultation in a pilot study. METHODS: After baseline assessment of knowledge and difficulties with patch administration, patients in the outpatient pain clinic of Heidelberg University Hospital were allocated to intervention (n = 12) or control group (n = 11)...
December 2018: Journal of Patient Safety
https://www.readbyqxmd.com/read/30445368/effect-of-tribochemical-silica-coating-or-multipurpose-products-on-bonding-performance-of-a-cad-cam-resin-based-material
#19
Xinyi Wu, Haifeng Xie, Hongliang Meng, Lu Yang, Bingzhuo Chen, Ying Chen, Chen Chen
OBJECTIVES: Nanocomposite ceramics have been widely used in clinical practice; however, a standard, recommended bonding protocol has not been determined yet. The present study aimed to evaluate application of tribochemical silica coating or multipurpose products on bonding performance of a CAD/CAM resin-based material (known as nanocomposite ceramic). MATERIALS AND METHODS: Nanocomposite ceramic specimens were fabricated and assigned into 11 groups to build bonded specimens (n = 15) according to surface treatments (none; air particle abrasion with 50-μm alumina followed by application of a silane coupling agent or a universal adhesive; tribochemical silica coating followed by application of a silane coupling agent or a universal adhesive) and resin luting cements (conventional resin cement, RelyX Veneer; self-adhesive resin cement RelyX Unicem) used...
November 2, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/30444693/composite-composite-adhesion-as-a-function-of-adhesive-composite-material-and-surface-treatment
#20
A V Ritter, T A Sulaiman, A Altitinchi, E Bair, F Baratto-Filho, C C Gonzaga, G M Correr
OBJECTIVE: To evaluate the composite-to-composite repair interfacial fracture toughness (iFT) as a function of adhesive and composite repair material. METHODS AND MATERIALS: Beam-shaped composite specimens (21×4×3±0.2 mm) were prepared for each substrate material (Filtek Supreme Ultra [FSU] or Clearfil Majesty ES-2 [CME]) and artificially aged for 50,000 thermocycles (5-55°C, 20-second dwell time). Aged specimens were sectioned in half, and the resulting hemispecimens were randomly assigned to one of the different repair methods (n=10) based on the following variables: type of substrate composite (FSU or CME), acid etch (yes or no), adhesive type (Scotchbond Universal or Clearfil SE Bond 2), and type of repair composite (FSU or CME)...
November 16, 2018: Operative Dentistry
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