keyword
MENU ▼
Read by QxMD icon Read
search

light cure

keyword
https://www.readbyqxmd.com/read/29048706/assessment-of-monomer-release-from-3-different-fissure-sealants
#1
K Görkem Ulu Güzel, Işıl Sönmez
BACKGROUND: Light-activated resin-based dental fissure sealants are the most widely accepted among clinicians. The objective of this study was to determine monomer release of 3 different light-curing fissure sealants in vitro: Control Seal (Voco, Germany), Fissurit FX (Voco, Germany) and R&D Series Fıssured Nova (Imicrly, Turkey). METHODS: Each material was polymerized with a curing light: Valo Cordless (Ultradent) LED in standard mode for 20 seconds (n = 27) and 40 seconds (n = 27) and in Xtra power mode (plasma arc) for 3 seconds (n = 27)...
October 18, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29048704/hydroxyapatite-decreases-cytotoxicity-of-a-glass-ionomer-cement-by-calcium-fluoride-uptake-in-vitro
#2
Casiano Del Angel-Mosqueda, Rene Hernandez-Delgadillo, Osvelia E Rodríguez-Luis, María T Ramírez-Rodríguez, Silvia Munguía-Moreno, Norma V Zavala-Alonso, Juan M Solís-Soto, María A A Nakagoshi-Cepeda, Rosa I Sánchez-Nájera, Sergio E Nakagoshi-Cepeda, Claudio Cabral-Romero
BACKGROUND: Glass ionomer cements (GICs) are widely used in dentistry because of their remineralizing and cariostatic potential induced by fluoride. In vitro studies have reported cell toxicity triggered by GICs; however, the influence of hydroxyapatite (HAp) must be considered. The aim of this study was to evaluate the effect of HAp in decreasing the cytotoxicity of the GIC 3M Vitrebond in vitro. METHODS: Samples of 3M Vitrebond (powder, liquid and light-cured) were incubated in Dulbecco's modified Eagle's medium-Ham's F12 (DMEM-F12) for 24 hours at 37°C...
October 14, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29047095/redox-signaling-in-the-right-ventricle
#3
Yuichiro J Suzuki, Nataliia V Shults
Pulmonary hypertension is a devastating disease without cure. The major cause of death among patients with pulmonary hypertension is right heart failure; however, biology of the right heart is not well understood. This lack of knowledge interferes with developing effective therapeutic strategies to treat these patients. In this chapter, we summarize studies performed in our laboratory that investigated the role of redox signaling in the regulation of the right ventricle (RV), using rat models of experimental pulmonary hypertension and right heart failure...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29046593/wavelength-selective-sequential-polymer-network-formation-controlled-with-a-two-color-responsive-initiation-system
#4
Xinpeng Zhang, Weixian Xi, Sijia Huang, Katelyn Long, Christopher N Bowman
We report a wavelength-selective polymerization process controlled by visible/UV light, whereby a base is generated for anion-mediated thiol-Michael polymerization reaction upon exposure at one wavelength (400-500 nm), while radicals are subsequently generated for a second stage radical polymerization at a second, independent wavelength (365 nm). Dual wavelength, light controlled sequential polymerization not only provides a relatively soft intermediate polymer that facilitates optimum processing and modification under visible light exposure but also enables a highly cross-linked, rigid final material after the UV-induced second stage radical polymerization...
August 8, 2017: Macromolecules
https://www.readbyqxmd.com/read/29044686/thiol-ene-clickable-gelatin-a-platform-bioink-for-multiple-3d-biofabrication-technologies
#5
Sarah Bertlein, Gabriella Brown, Khoon S Lim, Tomasz Jungst, Thomas Boeck, Torsten Blunk, Joerg Tessmar, Gary J Hooper, Tim B F Woodfield, Juergen Groll
Bioprinting can be defined as the art of combining materials and cells to fabricate designed, hierarchical 3D hybrid constructs. Suitable materials, so called bioinks, have to comply with challenging rheological processing demands and rapidly form a stable hydrogel postprinting in a cytocompatible manner. Gelatin is often adopted for this purpose, usually modified with (meth-)acryloyl functionalities for postfabrication curing by free radical photopolymerization, resulting in a hydrogel that is cross-linked via nondegradable polymer chains of uncontrolled length...
October 17, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29042725/the-effect-of-polymerization-and-preparation-techniques-on-the-microleakage-of-composite-laminate-veneers
#6
Neslihan Celik, Merve Iscan Yapar, Numan Taşpınar, Nilgun Seven
BACKGROUND: Marginal leakage is the important factor influencing the maintenance of dental esthetic. AIM: The purpose of this study was to evaluate the relationship between the preparation techniques and type of polymerization techniques on microleakage of composite laminate veneers. MATERIALS AND METHODS: Ninety-one same sized, caries-free human maxillary central incisors were randomly assigned to 13 groups (n = 7) and were designed with four different preparation techniques (window type, feather type, bevel type, and incisal overlap type)...
July 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29042524/-autoimmune-and-epilepsy
#7
Riki Matsumoto, Mitsuhiro Sakamoto, Akio Ikeda
The recent discovery of autoimmune antibodies to the neuronal cell surface membrane and extra- or intra-cellular proteins, such as NMDAR and LGI1, shed light on a proposed new etiology of epilepsy, namely, "autoimmune epilepsy". A large part of this entity most likely belongs to a forme fruste of autoimmune (limbic) encephalitis. Seizures are usually subacute in onset and refractory to antiepileptic medications. Patients occasionally manifest multiple seizure semiologies, such as autonomic or faciobrachial dystonic seizures...
October 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/29042319/photochemical-delivery-of-bleomycin-induces-t-cell-activation-of-importance-for-curative-effect-and-systemic-anti-tumor-immunity
#8
Ole-Jacob Norum, Ane Sofie Viset Fremstedal, Anette Weyergang, Jakub Golab, Kristian Berg
Photochemical internalization (PCI) is a technology to enhance intracellular drug delivery by light-induced translocation of endocytosed therapeutics into the cytosol. The aim of this study was to explore the efficacy of PCI-based delivery of bleomycin and the impact on systemic anti-tumor immunity. Mouse colon carcinoma cells (CT26.CL25), stably expressing the bacterial β-galactosidase, were inoculated into the legs of athymic or immuno-competent BALB/c mice strains. The mice were injected with the photosensitizer AlPcS2a and bleomycin (BLM) prior to tumor light exposure from a 670nm diode laser...
October 14, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29032813/light-cured-tricalcium-silicate-toxicity-to-the-dental-pulp
#9
Charlotte Jeanneau, Patrick Laurent, Charlotte Rombouts, Thomas Giraud, Imad About
INTRODUCTION: Numerous studies reported dentin bridge formation after pulp capping with tricalcium silicates. By contrast, pulp capping with resins leads to pulp toxicity and inflammation. Hybrid materials made up of tricalcium silicates and resins have also been developed to be used in direct pulp capping. This work was designed to study the consequences of adding resins to tricalcium silicates by investigating TheraCal (BISCO, Lançon De Provence, France) and Biodentine (Septodont, Saint Maur des Fosses, France) interactions with the dental pulp...
October 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29028415/crispr-cas9-mediated-noncoding-rna-editing-in-human-cancers
#10
Jie Yang, Xiaodan Meng, Jinchang Pan, Nan Jiang, Chengwei Zhou, Zhenhua Wu, Zhaohui Gong
Cancer is characterized by multiple genetic and epigenetic alterations, including a higher prevalence of mutations of oncogenes and/or tumor suppressors. Mounting evidences have shown that noncoding RNAs (ncRNAs) are involved in the epigenetic regulation of cancer genes and their associated pathways. The clustered regularly interspaced short palindromic repeats (CRISPR)-associated nuclease 9 (CRISPR/Cas9) system, a revolutionary genome-editing technology, has shed light on ncRNA-based cancer therapy. Here, we briefly introduce the classifications and mechanisms of CRISPR/Cas9 system...
October 13, 2017: RNA Biology
https://www.readbyqxmd.com/read/29020473/cutis-marmorata-telangiectatica-congenita-successfully-treated-with-intense-pulsed-light-therapy-a-case-report
#11
Ajay J Deshpande
Cutis marmorata telangiectatica congenita is a rare disorder characterized by cutis marmorata, telangiectasia with or without recurrent ulcerations. It is a benign vascular anomaly with dilatation of capillaries and veins in the dermis. There is no satisfactory treatment for the ulcerative variety of cutis marmorata telangiectatica congenita. In this case intense pulse light therapy was used with almost near total cure.intense pulse light with its' vascular filter of wavelength 550-1200 nm was used every fortnight till complete resolution of lesions...
October 11, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29019552/water-sorption-and-solubility-of-bulk-fill-composites-polymerized-with-a-third-generation-led-lcu
#12
Tuğba Misilli, Nihan Gönülol
The aim of this study was to compare the degree of water sorption and solubility in bulk-fills after curing with a polywave light source. A total of 120 disc-shaped specimens (8 mm diameter; 4 mm depth) were prepared from three regular bulk-fill materials (X-tra Fil, Tetric N-Ceram Bulk Fill, SonicFill), and a control material (Filtek Z250), cured in 3 different modes (standard: 1000 mW/cm2-20 s; high power: 1400 mW/cm2-12 s; xtra power: 3200 mW/cm2-6 s) using a third generation light-emitting diode light curing unit...
September 28, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/29017759/differential-cytotoxic-effects-on-odontoblastic-cells-induced-by-self-adhesive-resin-cements-as-a-function-of-the-activation-protocol
#13
Paulo Henrique Perlatti D'Alpino, Gioconda Emanuella Diniz de Dantas Moura, Silvana Coelho de Arruda Barbosa, Lygia de Azevedo Marques, Marcos Nogueira Eberlin, Fábio Dupart Nascimento, Ivarne Luis Dos Santos Tersariol
OBJECTIVES: To evaluate the cytotoxic effects of exposing odontoblast cells to a variety of commercial self-adhesive cements polymerized using different activation modes. METHODS: Five cements: MaxCem Elite (MAX), Bifix SE (BSE), G-Cem LinkAce (GCE), Clearfil SA Luting (CAS), and RelyX U200 (U200) were mixed, dispensed into molds, and distributed in groups, according to polymerization protocols: immediate photoactivation; delayed photoactivation (10min self-curing plus light-activation); and chemical activation (no light exposure)...
October 7, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28992604/photodynamic-effects-on-fonsecaea-monophora-conidia-and-raw264-7-in-vitro
#14
Xiuwen Yi, Cindy Fransisca, Ya He, Yinghui Liu, Sha Lu, Liya He, Liyan Xi
Chromoblastomycosis (CBM), one of the neglected tropical diseases, is hard to cure and easy to be recurrent. Many studies suggest that macrophage is involved in the pathogenesis of chromoblastomycosis and the fungicidal effect of 5-Aminolaevulinic Acid-Based Photodynamic Therapy (ALA-PDT) against F. monophora (one of the main causative agent of chromoblastomycosis) has shown great promise. However, the fungicidal ability of ALA-PDT to F. monophora is still controversial and the molecular mechanism and immune mechanism of ALA-PDT against F...
September 18, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28989124/comparison-of-shear-bond-strengths-of-conventional-resin-cement-and-self-adhesive-resin-cement-bonded-to-lithium-disilicate-an-in-vitro-study
#15
Anip K Roy, Dennis Mohan, M Sunith, Rashmi B Mandokar, S Suprasidh, Soumya Rajan
AIM: The aim of this study is to compare the shear bond strengths of conventional resin cement and self-adhesive resin cement bonded to lithium disilicate. MATERIALS AND METHODS: A total of 40 extracted human molar teeth were mounted in self-cure acrylic resin. Teeth were prepared to obtain flat occlusal surface. About 40 lithium disilicate specimens of dimension-10 mm in diameter and thickness of 2 mm-were fabricated using lost wax technique. The samples were divided into four groups: Groups I, II, III, and IV (n = 10)...
October 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28989121/protective-effect-of-adhesive-systems-associated-with-neodymium-doped-yttrium-aluminum-garnet-laser-on-enamel-erosive-abrasive-wear
#16
Erica Crastechini, Alessandra B Borges, Klaus Becker, Thomas Attin, Carlos Rg Torres
AIM: This study evaluated the efficacy of self-etching adhesive systems associated or not associated with the neodymium-doped yttrium aluminum garnet (Nd:YAG) laser on the protection against enamel erosive/abrasive wear. MATERIALS AND METHODS: Bovine enamel specimens were demineralized with 0.3% citric acid (5 minutes). The samples were randomly assigned to eight groups (n = 20): SB - Single Bond Universal (3M/ESPE); SB+L - Single Bond Universal + laser (80 mJ/10 Hz); FB - Futurabond U (Voco); FB+L -Futurabond U + laser; GEN - G-aenial bond (GC); GEN+L -G-aenial bond + laser; L - laser irradiation; and C - no treatment...
October 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28987026/the-micromorphological-characterization-of-adhesive-bond-in-dentin-different-locations
#17
Bojana D Ramic, Milan R Drobac, Igor L Stojanac, Milica T Premovic, Ljubomir M Petrovic
The aim of this study was to analyse the interfacial micromorphology of total-etch adhesives and dentin structures different locations by using SEM. Standardized cylindrical cavities (3mm in diameter, 2mm deep) with all margins in dentin were prepared on occlusal and buccal surfaces of twenty extracted human third molars. A total-etch dentin adhesive system and a light-cure flowable composite (Filtek Ultimate Flowable, 3M ESPE, St. Paul, MN, USA) were used in this study. Micro-morphological SEM analysis of the marginal seal of the original tooth specimens was performed using high magnification of up to 1000×...
October 7, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28985446/preparation-ferrule-design-effect-on-endocrown-failure-resistance
#18
Michael Einhorn, Nicholas DuVall, Michael Wajdowicz, John Brewster, Howard Roberts
PURPOSE: To evaluate the effect of preparation ferrule inclusion with fracture resistance of mandibular molar endocrowns. MATERIALS AND METHODS: Recently extracted mandibular third molars were randomly divided into 3 groups (n = 12) with the coronal tooth structure removed perpendicular to the root long axis approximately 2 mm above the cemento-enamel junction with a slow-speed diamond saw. The pulp chamber was exposed using a diamond bur in a high-speed handpiece with pulpal remnants removed and canals instrumented using endodontic hand instruments...
October 6, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28980469/hybrid-copper-silver-graphene-nanoplatelet-conductive-inks-on-pdms-for-oxidation-resistance-under-intensive-pulsed-light
#19
Changyong Yim, Zachary A Kockerbeck, Sae Byeok Jo, Simon S Park
A simple, low-cost, and reliable process of production for conductive tracks and their transfer to poly(dimethylsiloxane) (PDMS) substrate has been proposed. Flexible electrodes were fabricated using conductive nanoparticulates under intensive pulsed light, which were then transferred on to a PDMS substrate via a pouring, curing, and peeling process. The combination of copper-silver nitrate-graphene nanoplatelets (GnPs) provided multiple benefits to the conductive tracks, such as oxidation resistance and increased durability on PDMS...
October 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28976847/effect-of-light-activation-of-pulp-capping-materials-and-resin-composite-on-dentin-deformation-and-the-pulp-temperature-change
#20
C J Soares, M S Ferreira, A A Bicalho, M de Paula Rodrigues, Ssl Braga, A Versluis
OBJECTIVES: To analyze the effect of pulp-capping materials and resin composite light activation on strain and temperature development in the pulp and on the interfacial integrity at the pulpal floor/pulp-capping materials in large molar class II cavities. METHODS: Forty extracted molars received large mesio-occlusal-distal (MOD) cavity bur preparation with 1.0 mm of dentin remaining at the pulp floor. Four pulp-capping materials (self-etching adhesive system, Clearfil SE Bond [CLE], Kuraray), two light-curing calcium hydroxide cements (BioCal [BIO], Biodinâmica, and Ultra-Blend Plus [ULT], Ultradent), and a resin-modified glass ionomer cement- (Vitrebond [VIT], 3M ESPE) were applied on the pulpal floor...
October 4, 2017: Operative Dentistry
keyword
keyword
50795
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"