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https://www.readbyqxmd.com/read/29652570/shear-bond-strength-of-composite-and-ceromer-superstructures-to-direct-laser-sintered-and-ni-cr-based-infrastructures-treated-with-ktp-nd-yag-and-er-yag-lasers-an-experimental-study
#1
Oguzhan Gorler, Ihsan Hubbezoglu, Melih Ulgey, Recai Zan, Kubra Guner
OBJECTIVE: The aim of this study was to examine the shear bond strength (SBS) of ceromer and nanohybrid composite to direct laser sintered (DLS) Cr-Co and Ni-Cr-based metal infrastructures treated with erbium-doped yttrium aluminum garnet (Er:YAG), neodymium-doped yttrium aluminum garnet (Nd:YAG), and potassium titanyl phosphate (KTP) laser modalities in in vitro settings. METHODS: Experimental specimens had four sets (n = 32) including two DLS infrastructures with ceromer and nanohybrid composite superstructures and two Ni-Cr-based infrastructures with ceromer and nanohybrid composite superstructures...
April 2018: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29615125/in-office-laryngeal-procedures-iolp-in-canada-current-safety-practices-and-procedural-care
#2
Yael Bensoussan, Jennifer Anderson
BACKGROUND: The advent of chip tip technology combined with advanced endoscopy has revolutionized the field of laryngology in the past decade. Procedures such as transnasal esophagoscopy, site-specific steroid injections, injection laryngoplasty and laryngeal laser treatment can now be performed in the office setting under local anaesthesia. Although In-Office Laryngeal Procedures (IOLPs) have become standard-of-care in many American and several Canadian centers, there are no guidelines regulating the practice of these procedures...
April 3, 2018: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29610958/potassium-titanyl-phosphate-laser-induced-inflammatory-response-and-extracellular-matrix-turnover-in-rabbit-vocal-fold-scar
#3
Jing Zhang, Ruiqing Zhen, Chunsheng Wei
PURPOSE: The objectives of this study were to observe the regulating effect of KTP laser and Nd:YAG laser in the repair of vocal fold scars. METHODS: All rabbits were injured in the muscular layer with a sharp instrument, and then the vocal folds were treated with a KTP laser and a Nd:YAG laser at a power of 2, 4, 6 and 8 W 1 month after the injury. One month after treatment, the rabbits were killed and the throats were removed to detect changes in histology and gene expression of the vocal fold scar after laser therapy...
April 2, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29594918/squamous-cell-papillomatosis-in-the-setting-of-recurrent-respiratory-papillomatosis
#4
Pasha L Bentley, Michael J Coulter, Brenda L Nelson
A 23 year old male presented to the Otolaryngology clinic with 6 months of hoarseness and poor voice projection without improvement from speech therapy or medical anti-reflux medication. Upon examination he was found to have multiple polypoid lesions emanating from bilateral false vocal folds, left true vocal fold, and the anterior commissure. Biopsy and potassium titanyl phosphate (KTP) laser ablation with bevacizumab injection provided treatment and confirmed the clinical suspicion of squamous cell papilloma...
March 28, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29482095/pharmaceutical-grey-water-footprint-accounting-influence-of-wastewater-treatment-plants-and-implications-of-the-reuse
#5
Isabel Martínez-Alcalá, Francisco Pellicer-Martínez, Carmen Fernández-López
Emerging pollutants, including pharmaceutical compounds, are producing water pollution problems around the world. Some pharmaceutical pollutants, which mainly reach ecosystems within wastewater discharges, are persistent in the water cycle and can also reach the food chain. This work addresses this issue, accounting the grey component of the water footprint (GWFP ) for four of the most common pharmaceutical compounds (carbamazepine (CBZ), diclofenac (DCF), ketoprofen (KTP) and naproxen (NPX)). In addition, the GWFC for the main conventional pollutants is also accounted (nitrate, phosphates and organic matter)...
February 15, 2018: Water Research
https://www.readbyqxmd.com/read/29465050/antibacterial-effect-of-surface-pretreatment-techniques-against-streptococcus-mutans
#6
H S Sancakli, S H Siso, S O Yildiz, Y B Gökçe
Objective: The aim of this study was to evaluate the antibacterial surface pretreatment methods against Streptococcus mutans within the infected dentin surface using a tooth cavity model. Material and Methods: Seventy-two cavities were prepared on caries-free third molars (n = 8). After sterilization, teeth were inoculated with S. mutans for 48 h. One cavity of each tooth was used to evaluate the infection. Following inoculation, infected cavity surfaces were treated either with (1) Er:YAG Laser (1W; 5x5s, Smart 2940D Plus, Deka Laser), (2) Ozone (80s; HealOzone, Kavo), (3) ErYAG-Ozone combination, (4) Er:YAG-Ozone-CHX combination, (5) Chlorhexidine (CHX), (6) Clearfil Protect Bond (PB), (7) potassium-titanyl-phosphate (KTP) Laser (1W; 60 s, SMARTLITE D, Deka Laser), (8) KTP-Ozone combination, and (9) KTP-Ozone-CHX...
February 2018: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29419914/early-laser-intervention-to-reduce-scar-formation-a-systematic-review
#7
REVIEW
K Karmisholt, A Haerskjold, T Karlsmark, J Waibel, U Paasch, M Haedersdal
The ability of laser treatment to affect wound healing and subsequently minimize scar formation has been investigated in recent years. However, no systematic review links these clinical trials. The aim of this study is to systematically review and evaluate clinical evidence for early laser intervention to reduce scar formation in studies where laser treatment were introduced less than 3 months after wounding. We searched PubMed using relevant key words in June 2017. Titles, abstracts and articles were sorted according to inclusion and exclusion criteria...
February 8, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29401859/tuning-single-photon-sources-for-telecom-multi-photon-experiments
#8
Chiara Greganti, Peter Schiansky, Irati Alonso Calafell, Lorenzo M Procopio, Lee A Rozema, Philip Walther
Multi-photon state generation is of great interest for near-future quantum simulation and quantum computation experiments. To-date spontaneous parametric down-conversion is still the most promising process, even though two major impediments still exist: accidental photon noise (caused by the probabilistic non-linear process) and imperfect single-photon purity (arising from spectral entanglement between the photon pairs). In this work, we overcome both of these difficulties by (1) exploiting a passive temporal multiplexing scheme and (2) carefully optimizing the spectral properties of the down-converted photons using periodically-poled KTP crystals...
February 5, 2018: Optics Express
https://www.readbyqxmd.com/read/29399308/comparison-of-tooth-color-change-after-bleaching-with-conventional-and-different-light-activated-methods
#9
Sima Shahabi, Hadi Assadian, Alireza Mahmoudi Nahavandi, Hanieh Nokhbatolfoghahaei
Introduction: The demand for esthetic dental treatments is increasing in recent years mainly due to improved oral hygiene and better maintenance of oral health and teeth in older individuals. Bleaching of discolored anterior teeth is the most popular among esthetic dental treatments. Even individuals with sound teeth and adequate esthetics seek to have whiter teeth in the anterior region. The aim of this study was to evaluate tooth color changes following conventional in-office bleaching techniques compared to light-activated methods using different light sources...
2018: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29351230/comparison-of-antioxidative-effects-of-insect-tea-and-its-raw-tea-kuding-tea-polyphenols-in-kunming-mice
#10
Xin Zhao, Jia-Le Song, Ruokun Yi, Guijie Li, Peng Sun, Kun-Young Park, Huayi Suo
Kudingcha is a traditional Chinese tea, and insect tea is a special drink produced by the metabolism of insect larvae using the raw Kuding tea. Insect tea polyphenols (ITP) and its raw tea (Kuding tea) polyphenols (KTP) are high-purity polyphenols extracted by centrifuge precipitation. The present study was designed to compare the antioxidative effects of insect tea polyphenols (ITP) and its raw tea (Kuding tea) polyphenols (KTP) on d-galactose-induced oxidation in Kunming (KM) mice. KM mice were treated with ITP (200 mg/kg) and KTP (200 mg/kg) by gavage, and vitamin C (VC, 200 mg/kg) was also used as a positive control by gavage...
January 19, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29350715/simulation-of-ktp-laser-based-zenker-diverticulotomy-with-a-porcine-model-and-laryngeal-dissection-station
#11
Matthew R Hoffman, Heidi Kletzien, Seth H Dailey, J Scott McMurray
Zenker's diverticulum is a rare cause of progressive dysphagia that is treated surgically. KTP laser-based diverticulotomy is one effective treatment. Developing a simulation model is helpful for rare conditions. Pigs have a natural hypopharyngeal pouch similar to a diverticulum. We present a model for performing rigid endoscopic KTP laser diverticulotomy in a porcine model using a laryngeal dissection station. Eleven pigs were examined to confirm presence of the hypopharyngeal pouch. A specimen was mounted on the modified laryngeal dissection station and a KTP laser-based diverticulotomy was performed...
December 2017: OTO open
https://www.readbyqxmd.com/read/29340656/antagonistic-effect-of-saccharomyces-cerevisiae-ktp-and-issatchenkia-occidentalis-apc-on-hyphal-development-and-adhesion-of-candida-albicans
#12
K Lohith, K A Anu-Appaiah
The morphological transition from yeast to a hyphal form, as well as the adhesion capability to the gastrointestinal tract, are implicated virulent determinant in Candida albicans and could be potential targets for prevention of the opportunistic pathogen. Based on this rationale, two yeast strains Saccharomyces cerevisiae KTP and Issatchenkia occidentalis ApC along with reference strain Saccharomyces boulardii NCDC 363 were screened for the probiotic potential. Characters like pH, temperature, bile, simulated gastrointestinal juice tolerance tests, and Caco-2 cell line adhesion assay were determined in the present study...
January 11, 2018: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29336196/effect-of-chromoendoscopy-filters-on-visualization-of-ktp-laser-associated-tissue-changes-a-cadaveric-animal-model
#13
Christopher M Johnson, Mariah B Pate, Gregory N Postma
Standard KTP laser (potassium titanyl phosphate) wavelength-specific protective eyewear often impairs visualization of tissue changes during laser treatment. This sometimes necessitates eyewear removal to evaluate tissue effects, which wastes time and poses safety concerns. The objective was to determine if "virtual" or "electronic" chromoendoscopy filters, as found on some endoscopy platforms, could alleviate the restricted visualization inherent to protective eyewear. A KTP laser was applied to porcine laryngeal tissue and recorded via video laryngoscopy with 1 optical (Olympus Narrow Band Imaging) and 8 digital (Pentax Medical I-scan) chromoendoscopy filters...
April 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29310501/curative-effect-of-chemotherapy-ktp-lasers-and-co-2-lasers-combined-with-chemotherapy-in-the-treatment-of-adult-laryngeal-hemangioma
#14
Xiufa Wu, Wenjing Mao, Peijie He, Chunsheng Wei
PURPOSE: To evaluate three methods for treating adult laryngeal hemangiomas: conventional chemotherapy, CO2 laser combined with chemotherapy, and KTP laser. And to identify risk factors that affected the prognosis of the lesions. METHOD: A retrospective analysis was performed on the data from patients with adult laryngeal hemangiomas treated by one of three aforementioned methods, the curative efficacy, and safety of those methods was compared. RESULTS: All cases were confirmed by suspension micro-laryngoscope examination...
January 8, 2018: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29289698/tyrosyl-trna-synthetase-a-potential-kyotorphin-synthetase-in-mammals
#15
Tamotsu Tsukahara, Shuhei Yamagishi, Hiroyuki Neyama, Hiroshi Ueda
Kyotorphin (KTP; L-tyrosyl-l-arginine), an opioid-like analgesic discovered in the bovine brain, is potentially a neuromodulator because of its localization in synaptosomes, the existence of a specific KTP receptor, and the presence of its biosynthetic enzyme in the brain. KTP is formed in the brain from its constituent amino acids, L-tyrosine and L-arginine, by an enzyme termed KTP synthetase. However, the latter has never been identified. We aimed to test the hypothesis that tyrosyl-tRNA synthetase (TyrRS) is also KTP synthetase...
March 2018: Peptides
https://www.readbyqxmd.com/read/29289232/note-pulsed-single-longitudinal-mode-optical-parametric-oscillator-for-sub-doppler-spectroscopy-of-jet-cooled-transient-species
#16
Qiang Zhang, Boxing Zhu, Deping Zhang, Jingwang Gu, Dongfeng Zhao, Yang Chen
We present a pulsed single longitudinal mode optical parametric oscillator that was recently constructed for sub-Doppler spectroscopic studies of transient species in a supersonic slit jet expansion environment. The system consists of a Littman-type grazing-incidence-grating resonator and a KTP crystal and is pumped at 532 nm. By spatially filtering the pump laser beam and employing an active cavity-length-stabilization scheme, a frequency down-conversion efficiency up to 18% and generation of Fourier-transform limited pulses with a typical pulse duration of ∼5...
December 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/29274158/prospective-study-of-the-532-nm-laser-ktp-versus-diode-laser-980-nm-in-the-resection-of-hyperplastic-lesions-of-the-oral-cavity
#17
P Bargiela-Pérez, J González-Merchan, R Díaz-Sanchez, M-A Serrera-Figallo, G Volland, M Joergens, J-L Gutiérrez-Perez, D Torres-Lagares
BACKGROUND: The aim of this study is to evaluate the resection of hyperplastic lesions on the buccal mucosa comparing the 532nm laser (KTP), versus diode 980nm laser, considering pain, scarring, inflammation and drug consumption that occurred postoperatively with each lasers. MATERIAL AND METHODS: A prospective study of consecutive series of 20 patients in two groups that presents hyperplastic lesions on the buccal mucosa. The choice of the KTP laser or diode 980nm laser for the surgery was made randomly...
January 1, 2018: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/29250416/formation-and-structural-characterization-of-a-europium-ii-mono-scorpionate-complex-and-a-sterically-crowded-pyraza-bole
#18
Phil Liebing, Marcel Kühling, Josef Takats, Liane Hilfert, Frank T Edelmann
The reaction of EuI2 (THF)2 with potassium hydro-tris-(3,5-diiso-propyl-pyrazol-yl)borate (K[HB(3,5- i Pr2 pz)3 ] (= KTp i Pr2 , pz = pyrazol-yl) in a molar ratio of 1:1.5 resulted in extensive ligand fragmentation and formation of the europium(II) mono(scorpionate) complex bis-(3,5-diisopropyl-1 H -pyrazole)[hydro-tris-(3,5-diiso-propyl-pyrazol-yl)borato]iodido-europium(II), [Eu(C27 H46 BN6 )I(C9 H16 N2 )2 ] or (Tp i Pr2 )(3,5- i Pr2 pzH)2 EuII I, 1 , in high yield (78%). As a typical by-product, small amounts of the sterically crowded pyraza-bole derivative trans -4,8-bis-(3,5-diiso-propyl-pyrazol-1-yl)-1,3,5,7-tetra-iso-propyl-pyraza-bole, C36 H62 B2 H8 or trans -{(3,5- i Pr2 pz)HB(μ-3,5- i Pr2 pz)}2 , 2 , were formed...
December 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/29227749/efficacy-and-safety-of-photoselective-vaporization-of-the-prostate-with-120-w-532-nm-laser-in-patients-with-benign-prostatic-hyperplasia-on-anticoagulation-or-antiplatelet-therapy-observations-on-long-term-outcomes
#19
Grzegorz Piotrowicz, Tomasz Syryło, Rafał Jedynak, Henryk Zieliński
OBJECTIVE: The objective of this study was to evaluate the safety and effectiveness of photoselective vaporization of the prostate (PVP) in the treatment of patients with benign prostatic hyperplasia (BPH) on anticoagulant or antiplatelet therapy. BACKGROUND: The "gold standard" of surgical treatment of BPH is transurethral resection of the prostate (TURP). Since the risk of complications associated with TURP is still significant, there is a continuous search for safer and equally effective procedures...
December 11, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29171656/investigation-of-the-presence-of-hpv-on-ktp-laser-fibers-following-ktp-laser-treatment-of-papilloma
#20
Sonam Dodhia, Peter C Baxter, Fei Ye, Michael J Pitman
OBJECTIVES: Recurrent respiratory papillomatosis is often treated with in-office laser procedures using a potassium titanyl phosphate (KTP) laser transmitted through a laser fiber. Although effective, this procedure has notable downsides, including the possibility of transmitting human papillomavirus (HPV) in the smoke plume and the high cost of these single-use fibers. The objective of this study is to determine if HPV can be detected on a laser fiber after use, with or without sterilization...
November 24, 2017: Laryngoscope
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