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https://www.readbyqxmd.com/read/28340098/effect-of-fluoride-releasing-resin-composite-in-white-spot-lesions-prevention-a-single-centre-split-mouth-randomized-controlled-trial
#1
Mohannad M Alabdullah, Alaa Nabawia, Mowaffak A Ajaj, Humam Saltaji
Introduction: The objective of this two-arm split-mouth randomized trial, was to evaluate the ability of fluoride-releasing resin composite to prevent demineralization and white spot lesion (WSL) formation, during orthodontic treatment with fixed appliances. Methods: Patients needing comprehensive orthodontic treatment were randomly allocated into two groups, according to the half split-mouth technique. This trial examined a total of 300 teeth in each group: the control group, in which brackets were fixed with a non-fluoride-containing adhesive resin; and the intervention group, in which brackets were fixed with a fluoride-containing adhesive resin...
March 2, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28336229/arthroscopic-in-situ-repair-of-partial-bursal-rotator-cuff-tears-without-acromioplasty
#2
Maximiliano Ranalletta, Luciano A Rossi, Nicolas A Atala, Bernardo A B Altieri, Gastón D Maignon, Santiago L Bongiovanni
PURPOSE: To evaluate functional outcomes and complications in a consecutive group of patients with partial bursal rotator cuff tears (PBRCTs) treated with insitu repair without acromioplasty. METHODS: Seventy-four patients who had undergone an arthroscopic single row in situ repair for bursal-sided rotator cuff tears were evaluated. Clinical assessment consisted of glenohumeral range of motion measurement, the American Shoulder and Elbow Surgeons score, and the University of California at Los Angeles score...
March 20, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28333208/soluble-vcam-1-soluble-icam-1-ratio-is-a-promising-biomarker-for-diagnosing-endometriosis
#3
L Kuessel, R Wenzl, K Proestling, S Balendran, P Pateisky, Yotova, G Yerlikaya, B Streubel, H Husslein
STUDY QUESTION: Do cell adhesion molecules play a role in endometriosis, and can they be used as a biomarker for diagnosing endometriosis? SUMMARY ANSWER: Altered expression of vascular cell adhesion molecule-1 (VCAM-1) and intercellular adhesion molecule-1 (ICAM-1) in the endometrium and peritoneum may play a key role in endometriosis and the soluble VCAM-1/soluble ICAM-1 ratio is a promising biomarker. WHAT IS KNOWN ALREADY: Cell adhesion molecules are cell surface proteins that mediate cellular adherence, inflammatory and immune responses, and cancer-related biological processes...
February 23, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28326726/-effects-of-different-surface-modifications-on-micro-structure-and-adhesion-of-zirconia-ceramic-an-in-vitro-study
#4
Li Siwen, Li Shishi, Wang Yanhong, Ma Hongmei
OBJECTIVE: This study evaluated the effect of different mechanical-chemical surface treatments on the characteristics, microstructure, and composition of zirconia ceramics and on the zirconia-dentin adhesion. METHODS: The sintered commercial zirconia blocks (IPS e.max ZirCAD) were sectioned into 126 beams (6 mm×6 mm×5 mm) and randomly assigned to seven experimental groups (n=18). The zirconia block specimens were further treated as follows: (A) untreated, as control; (B) sandblasted with 50 μm Al2O3; (C) sandblasted with 50 μm Al2O3+30 μm silica powder; (D) sandblasted with 50 μm Al2O3+30% silica-sol coating; (E) sandblasted with 110 μm Al2O3; (F) sandblasted with 110 μm Al2O3+30 μm silica powder; and (G) sandblasted with 110 μm Al2O3+30% silica-sol coating...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28324641/preparation-of-a-non-woven-poly-%C3%AE%C2%B5-caprolactone-fabric-with-partially-embedded-apatite-surface-for-bone-tissue-engineering-applications-by-partial-surface-melting-of-poly-%C3%AE%C2%B5-caprolactone-fibers
#5
In Ae Kim, Sang-Hoon Rhee
This paper describes a novel method for the preparation of a biodegradable non-woven poly(ε-caprolactone) fabric with a partially-embedded apatite surface designed for application as a scaffold material for bone tissue engineering. The non-woven poly(ε-caprolactone) fabric was generated by the electro-spinning technique and then apatite was coated in simulated body fluid after coating the PVA solution containing CaCl2 ·2H2 O. The apatite crystals were partially- or fully-embedded into the thermoplastic poly(ε-caprolactone) fibers by controlling the degree of poly(ε-caprolactone) fiber surface melting in a convection oven...
March 21, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28322741/evidence-of-k-homeostasis-disruption-in-cellular-dysfunction-triggered-by-7-ketocholesterol-24s-hydroxycholesterol-and-tetracosanoic-acid-c24-0-in-158n-murine-oligodendrocytes
#6
Maryem Bezine, Meryam Debbabi, Thomas Nury, Rym Ben-Khalifa, Mohammad Samadi, Mustapha Cherkaoui-Malki, Anne Vejux, Jérôme de Sèze, Thibault Moreau, Mohamed El-Ayeb, Gérard Lizard
Imbalance in the homeostasis of K(+) ions has been reported to contribute to the pathogenesis of neurodegenerative diseases. 7-ketocholesterol (7KC), 24S-hydroxycholesterol (24S-OHC), and tetracosanoic acid (C24:0), often found at increased levels in patients with Alzheimer's disease, Multiple Sclerosis and X-ALD, are able to trigger numerous nerve cell dysfunctions. We therefore studied the impact of 7KC, 24S-OHC, and C24:0 on 158N murine oligodendrocytes, and determined their impact on K(+) homeostasis. The effects of 7KC, 24S-OHC and C24:0 on lipid membrane organization and membrane potential were examined with merocyanine 540 (MC540) and bis-(1,3-diethylthiobarbituric acid) trimethine oxonol (DiSBAC2(3)), respectively...
March 17, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28322603/bond-strength-of-abraded-and-non-abraded-bleached-enamel-to-resin-after-er-cr-ysgg-laser-irradiation
#7
Pedro H C Oliveira, Alessandra Cassoni, Aldo Brugnera, Ilana P Tenório, José A Rodrigues
OBJECTIVE: The objective of the study was to evaluate the microtensile bond strength (μTBS) of a composite resin to abraded or non-abraded bleached enamel after Er,Cr:YSGG laser irradiation and to observe the fracture patterns of the tested interfaces. MATERIALS AND METHODS: Two hundred twenty-eight bovine incisors were sectioned, resulting in 228 enamel blocks (7 × 4 × 4 mm(3)) that were divided into 12 groups (n = 19) according to the factors "adhesion" after bleaching (immediate adhesion; after 14 days; and a control group with adhesion on unbleached teeth); enamel "abrasion" (with or without abrasion simulating cavity preparation); and "laser" (with or without Er,Cr:YSGG laser irradiation)...
March 16, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28316225/-the-clinical-impact-of-artery-first-approach-combined-with-vascular-resection-and-reconstruction-in-the-treatment-of-pancreatic-head-carcinoma
#8
J L Huang, W G Li, F Z Chen, Z J Su, F M Li, B Liu
Objective: To evaluate the application of artery first, combined vascular resection and reconstruction in the treatment of pancreatic head carcinoma. Methods: The clinical data of 13 patients with pancreatic head cancer were retrospectively analyzed from February 2014 to March 2016 in the Affiliated Hospital of Xiamen University. Preoperative computed tomography of high resolution layer or magnetic resonance imaging examination demonstrated pancreatic head carcinoma, as well as close adhesion, stenosis, compression or displacement of superior mesenteric vein or portal vein wall...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28304128/the-thickness-of-the-adhesive-layer-increases-the-misdiagnosing-of-the-radiolucent-zones-and-restoration-replacement-indication
#9
Tatiana Tambara Fröhlich, Gabriel Ferreira Nicoloso, Tathiane Larissa Lenzi, Fabio Zovico Maxnuck Soares, Rachel De Oliveira Rocha
OBJECTIVE: To evaluate the influence of the thickness of the adhesive layer and demineralized dentin on the decision to replace composite restoration. MATERIALS AND METHODS: Eighty human third molars with occlusal preparations (Class I) were randomly assigned to eight groups (n = 10): adhesive system (Clearfil SE Bond [CSE] or Scotchbond Universal Adhesive [SBU]); the number of adhesive layers (one or two); and substrate (sound or demineralized dentin). A blinded examiner evaluated radiographs of each restored tooth...
March 17, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28277990/preventing-facial-pressure-ulcers-in-patients-under-non-invasive-mechanical-ventilation-a-randomised-control-trial
#10
D Peña Otero, D Vazquez Domínguez, L Hernanz Fernández, A Santano Magariño, V Jimenez González, J V García Klepzing, J V Beneit Montesinos
OBJECTIVE: To comparatively assess the efficacy of four different therapeutic strategies to prevent the development of facial pressure ulcers (FPUs) related to the use of non-invasive mechanical ventilation (NIV) with oro-nasal masks in critically ill hospitalised patients. METHOD: This randomised control trial was performed at the high dependency unit in the University General Hospital Gregorio Marañón in Madrid, Spain. Overall, 152 patients with acute respiratory failure were recruited...
March 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28258265/comparison-of-different-post-systems-for-fracture-resistance-an-in-vitro-study
#11
Suneel V Vadavadagi, Kiran M Dhananjaya, Rashmi P Yadahalli, M Lahari, Shilpa R Shetty, B L Bhavana
INTRODUCTION: Endodontic restoration becomes a challenging task for the clinician because of severe loss of coronal tooth structure owing to trauma, caries, restorative, and endodontic procedures. The restoration of these teeth requires the use of a post and core as individual units or as abutment supports for fixed or removable restorations in a predictable long-term manner. AIM: To compare and assess the compressive bond strength of glass, quartz, and carbon fiber posts restored with porcelain-fused-to-metal (PFM) crown...
March 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28257251/interfacial-characteristics-and-bond-durability-of-universal-adhesive-to-various-substrates
#12
A Tsujimoto, W W Barkmeier, T Takamizawa, T M Wilwerding, M A Latta, M Miyazaki
OBJECTIVE: This study investigated the interfacial characteristics and bond durability of universal adhesives to various substrates. METHODS AND MATERIALS: Two universal adhesives were used: 1) Scotchbond Universal and 2) G-Premio Bond. The substrates used were bovine enamel and dentin with or without phosphoric acid etching, resin composite, lithium disilicate and leucite-reinforced glass ceramics, zirconia, and metal alloys. The surface free energy and the parameters of various substrates and of substrates treated by adhesive after light irradiation were determined by measuring the contact angles of three test liquids...
March 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28256643/probing-the-shape-of-a-graphene-nanobubble
#13
Sandeep K Jain, Vladimir Juričić, Gerard T Barkema
Gas molecules trapped between graphene and various substrates in the form of bubbles are observed experimentally. The study of these bubbles is useful in determining the elastic and mechanical properties of graphene and adhesion energy between graphene and the substrate, and manipulating the electronic properties via strain engineering. In our numerical simulations, we use a simple description of the elastic potential and adhesion energy to show that for small gas bubbles (∼10 nm) the van der Waals pressure is in the order of 1 GPa...
March 3, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28256233/metastatic-state-of-cancer-cells-may-be-indicated-by-adhesion-strength
#14
Alexander Fuhrmann, Afsheen Banisadr, Pranjali Beri, Thea D Tlsty, Adam J Engler
Cancer cells within a tumor are heterogeneous and only a small fraction are able to form secondary tumors. Universal biological markers that clearly identify potentially metastatic cells are limited, which complicates isolation and further study. However, using physical rather than biological characteristics, we have identified Mg(2+)- and Ca(2+)-mediated differences in adhesion strength between metastatic and nonmetastatic mammary epithelial cell lines, which occur over concentration ranges similar to those found in tumor stroma...
February 28, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28254291/bio-inspired-enhancement-of-friction-and-adhesion-at-the-polydimethylsiloxane-intestine-interface-and-biocompatibility-characterization
#15
Hongyu Zhang, Yi Wang, Steven Vasilescu, Zhibin Gu, Tao Sun
An active navigation of self-propelled miniaturized robot along the intestinal tract without injuring the soft tissue remains a challenge as yet. Particularly in this case an effective control of the interfacial friction and adhesion between the material used and the soft tissue is crucial. In the present study, we investigated the frictional and adhesive properties between polydimethylsiloxane (PDMS, microscopically patterned with micro-pillar arrays and non-patterned with a flat surface) and rabbit small intestinal tract using a universal material tester...
May 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28253190/influence-of-previous-acid-etching-on-bond-strength-of-universal-adhesives-to-enamel-and-dentin
#16
Carlos Rocha Gomes Torres, Rayssa Ferreira Zanatta, Tatiane Josefa Silva, Maria Filomena Rocha Lima Huhtala, Alessandra Bühler Borges
The objective of this study was to evaluate the effect of acid pretreatment on the bond strength of composite resin bonded to enamel and dentin with 2 different universal self-etching adhesives. The null hypothesis was that the acid treatment performed prior to adhesive application would not significantly change the bond strength to enamel or dentin for either universal adhesive tested. A sample of 112 bovine incisors were selected and embedded in acrylic resin. Half were ground until a flat enamel surface was obtained, and the other half were polished until a 6 × 6-mm area of dentin was exposed, resulting into 2 groups (n = 56)...
March 2017: General Dentistry
https://www.readbyqxmd.com/read/28245928/evaluation-of-dental-adhesive-systems-incorporating-an-antibacterial-monomer-eugenyl-methacrylate-egma-for-endodontic-restorations
#17
A Almaroof, S A Niazi, L Rojo, F Mannocci, S Deb
OBJECTIVE: The purpose of this study was to incorporate EgMA, an antibacterial monomer into two commercial dental adhesive systems for their application in endodontic restoration with the aim to disinfect the root canal space before curing and to inhibit bacterial growth on their surfaces after being cured. METHODS: EgMA monomer was added at 20%wt. into the formulation of the single-component self-etch, Clearfil Universal Bond™ (CUB) and into the catalyst and the adhesive components of the total-etch Adper Scotchbond-multipurpose™ (SBMP) adhesive systems...
February 25, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28243301/fracture-strength-of-three-unit-implant-supported-fixed-partial-dentures-with-excessive-crown-height-fabricated-from-different-materials
#18
Vahideh Nazari, Safoura Ghodsi, Marzieh Alikhasi, Majid Sahebi, Ahmad Reza Shamshiri
OBJECTIVES: Fracture strength is an important factor influencing the clinical long-term success of implant-supported prostheses especially in high stress situations like excessive crown height space (CHS). The purpose of this study was to compare the fracture strength of implant-supported fixed partial dentures (FPDs) with excessive crown height, fabricated from three different materials. MATERIALS AND METHODS: Two implants with corresponding abutments were mounted in a metal model that simulated mandibular second premolar and second molar...
November 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28228539/three-dimensional-printing-spiders-back-and-forth-glue-application-yields-silk-anchorages-with-high-pull-off-resistance-under-varying-loading-situations
#19
Jonas O Wolff, Marie E Herberstein
The anchorage of structures is a crucial element of construction, both for humans and animals. Spiders use adhesive plaques to attach silk threads to substrates. Both biological and artificial adhesive structures usually have an optimal loading angle, and are prone to varying loading situations. Silk anchorages, however, must cope with loading in highly variable directions. Here we show that the detachment forces of thread anchorages of orb-web spiders are highly robust against pulling in different directions...
February 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28215114/arthroscopic-extended-rotator-interval-release-for-treating-refractory-adhesive-capsulitis
#20
Ming-Jr Tsai, Wei-Pin Ho, Chih-Hwa Chen, Tsai-Hsueh Leu, Tai-Yuan Chuang
PURPOSE: To present the clinical results of arthroscopic extended rotator interval release with a stretching program for treating refractory adhesive capsulitis. STUDY DESIGN: Case series; level of evidence, 4. METHODS: Arthroscopy-assisted extended rotator interval tissue release including anterior capsular was performed in 26 patients with refractory adhesive capsulitis. All rotator interval tissues, except the medial sling of the biceps, were excised and the excursion of the subscapularis tendon was restored and freely mobilized...
January 2017: Journal of Orthopaedic Surgery
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