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https://www.readbyqxmd.com/read/29461879/comparing-the-effectiveness-of-for-laser-vs-conventional-endoforehead-lifting
#1
Cheng-Jen Chang, De-Yi Yu, Shu-Ying Chang, Yen-Chang Hsiao
The objective of this study was to compare the efficacy and safety of laser versus conventional endoforehead lifting. A retrospective review was conducted of 110 patients a 12-year period. Subjects' ages ranged from 20 to 79 years; there were 84 females and 26 males. Patients (n=55) received conventional endoforehead lifting. Subsequent patients (n=55) received laser endoforehead lifting. The SurgiLase 150XJ CO2 laser system, in conjunction with the flexible FIBERLASE was used. The endoscope was 4mm in diameter with an angle of 30o ...
February 20, 2018: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29461492/layup-configuration-effect-on-notch-residual-strength-in-composite-laminates
#2
Venkateswaran Santhanakrishnan Balakrishnan, Holger Seidlitz, Sabine Weiß
The current trend shows an increasing demand for composites due to their high stiffness to weight ratio and the recent progress in manufacturing and cost reduction of composites. To combine high strength and stiffness in a cost-effective way, composites are often joined with steel or aluminum. However, joining of thermoset composite materials is challenging because circular holes are often used to join them with their metal counterparts. These design based circular holes induce high stress concentration around the hole...
February 20, 2018: Materials
https://www.readbyqxmd.com/read/29446270/a-comparative-evaluation-of-apf-gel-cpp-acp-paste-alone-and-in-combination-with-carbon-dioxide-laser-on-human-enamel-resistance-to-acid-solubility-using-atomic-absorption-spectrometry-an-in-vitro-study
#3
Ali Nozari, Azade Rafiee, Sara Dehghan Khalili, Reza Fekrazad
BACKGROUND: The aim of this study was to compare the effects of acidulated phosphate fluoride (APF) gel, calcium phosphopeptide-amorphous calcium phosphate (CPP/ACP) paste alone and in combination with CO2 laser on the resistance of enamel to acid solubility. METHODS: Ninety enamel sections were obtained from 15 extracted teeth and were randomly assigned to six groups: 1) control group; 2) APF group; 3) CPP-ACP group; 4) CO2 laser group; 5) APF + CO2 group; and 6) CPP-ACP + CO2 group...
April 2018: Minerva Stomatologica
https://www.readbyqxmd.com/read/29433567/laryngeal-recurrence-sites-in-patients-previously-treated-with-transoral-laser-microsurgery-for-squamous-cell-carcinoma
#4
P Horwich, M H Rigby, C MacKay, J Melong, B Williams, M Bullock, R Hart, J Trites, S M Taylor
BACKGROUND: The laryngeal framework provides a natural barrier preventing tumour spread to extralaryngeal structures. Transoral laser microsurgery (TLM) for laryngeal squamous cell carcinoma (SCC) may violate these boundaries, altering the pathways of tumor spread for potential recurrences. Our project objective is to describe laryngeal SCC recurrence patterns and overall survival in patients requiring total laryngectomy (TL) after TLM. METHODS: Patients undergoing TLM for laryngeal SCC requiring salvage TL were identified from a prospective CO2 laser database containing all patients undergoing TLM for head and neck malignancies at the QEII Health Sciences Center in Halifax, Nova Scotia between March 2002 - May 2014...
February 13, 2018: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29431228/efficacy-of-mas063dp-lotion-vs-0-02-triamcinolone-acetonide-lotion-in-improving-post-ablative-fractional-co-2-laser-resurfacing-wound-healing-a-split-face-triple-blinded-randomized-controlled-trial
#5
Suparuj Lueangarun, Therdpong Tempark
Proven as effective acne scar treatment, ablative fractional carbon dioxide (AFCO 2 ) laser requires post-laser wound healing care. MAS063DP is a multicomponent nonsteroidal anti-inflammatory moisturizer for effective post-laser treatment. This study compares the efficacy of MAS063DP and 0.02% triamcinolone acetonide (TA) lotion for post-laser wound healing and complications. A split-face, triple-blinded, clinical study was performed in 16 patients, aged 20-50 years, receiving AFCO 2 on both sides of the face, with MAS063DP on one side and 0...
February 12, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/29423955/new-and-emerging-techniques-for-endoscopic-treatment-of-zenker-s-diverticulum-a-state-of-the-art-review
#6
REVIEW
Sauid Ishaq, Haleema Sultan, Keith Siau, Toshio Kuwai, C J J Mulder, Helmut Neumann
Zenker's diverticulum (ZD), or pharyngeal pouch, is an anatomical defect characterised by herniation of the posterior pharyngeal wall through Killian's dehiscence, and may result in dysphagia and regurgitation. Multiple therapeutic modalities including surgery, rigid and flexible endoscopy have been developed to manage ZD. Although surgical management with open and endoscopically-assisted techniques have historically been the mainstay of ZD treatment, minimally invasive flexible endoscopic techniques, performed under conscious sedation, are increasingly favoured...
February 9, 2018: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
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/29414578/quantitative-measurement-of-carbon-isotopic-composition-in-co2-gas-reservoir-by-micro-laser-raman-spectroscopy
#8
Jiajia Li, Rongxi Li, Bangsheng Zhao, Hui Guo, Shuan Zhang, Jinghua Cheng, Xiaoli Wu
The use of Micro-Laser Raman spectroscopy technology for quantitatively determining gas carbon isotope composition is presented. In this study, 12CO2 and 13CO2 were mixed with N2 at various molar fraction ratios to obtain Raman quantification factors (F12CO2 and F13CO2), which provide a theoretical basis for calculating the δ13C value. And the corresponding values were 0.523 (0<C12CO2/CN2<2) and 1.11998 (0<C13CO2/CN2<1.5) respectively. It has shown that the representative Raman peak area can be used for the determination of δ13C values within the relative errors range of 0...
February 1, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29410753/the-effects-of-fractional-co2-laser-nano-hydroxyapatite-and-mi-paste-on-mechanical-properties-of-bovine-enamel-after-bleaching
#9
Horieh Moosavi, Narjes Hakimi
Background: This study investigated the effect of post bleaching treatments to the change of enamel elastic modulus and microhardness after dental bleaching in- vitro. Material and Methods: Fifty bovine incisor slab were randomly assigned into five groups (n=10). The samples were bleached for three times; 20 minutes each time, by 40% hydrogen peroxide. Next it was applied fractional CO2 laser for two minutes, Nano- hydroxy apatite (N-HA) and MI-paste for 7 days and 2 minutes per day...
December 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29406425/vulvar-and-vaginal-fractional-co2-laser-treatments-for-genitourinary-syndrome-of-menopause
#10
Lauren F Streicher
Many healthcare providers are offering women treatment with the fractionated CO2 laser for a myriad of gynecologic issues, including genitourinary syndrome of menopause (GSM). Because existing data are limited, providing guidance is challenging. This Practice Pearl addresses what we know and don't know about the use of the fractionated CO2 laser for the treatment of GSM.
February 5, 2018: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/29403188/laser-corrective-surgery-with-fractional-carbon-dioxide-laser-following-full-thickness-skin-grafts
#11
Emily Forbat, Faisal R Ali, Raj Mallipeddi, Firas Al-Niaimi
Full-thickness skin grafts (FTSGs) are frequently used to treat patients with burn injuries and to repair defects rendered by excisional (including Mohs) surgery. The evidence for corrective laser surgery after scar formation is well established. With regard to laser treatment of FTSG, the evidence is sparse. Laser treatment after FTSG is a novel concept, with minimal literature. We present a case series, one of the first to our knowledge, of the treatment of FTSG with fractional CO 2 laser in five patients after Mohs surgery...
July 2017: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/29403184/fractional-co-2-laser-vs-fractional-co-2-with-topical-platelet-rich-plasma-in-the-treatment-of-acne-scars-a-split-face-comparison-trial
#12
Bikash R Kar, Chinmoy Raj
Background: It is a challenge to treat acne scars and a multimodal combination approach is necessary. While fractional CO 2 lasers (FCLs) are an established treatment option, the role of platelet-rich plasma (PRP) in the treatment of acne scars is not established though it is being used extensively in other fields of medicine owing to its healing properties. We combined the two methods to assess the proposed synergistic action on acne scars. Aims and Objectives: To evaluate the effect of FCL alone vs FCL combined with PRP on the quality of acne scars...
July 2017: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/29400590/lichen-amyloidosis-successfully-treated-with-fractional-ablative-laser-co2-a-new-alternative-therapeutic
#13
Mouna Korbi, Hayet Akkari, Yosra Soua, Mariem Mohamed, Monia Youssef, Hichem Belhajdali, Jameledine Zili
Lichen amyloidosis is a primary localized cutaneous amyloidosis. Different types of treatment have been used without complete resolution. Herein, we report a case of patient suffering from lichen amyloidosis successfully treated with fractional ablative laser CO2. He was a 59-year-old man diagnosed lichen amyloidosis localized on the legs 10 years ago. He was treated with topical corticosteroids without any improvement. Then, we started treating the affected area with CO2 laser (limmer*) at a setting of 5-8 J/cm2 and 8 mm laser spot size...
February 5, 2018: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29399311/effect-of-co2-laser-and-fluoride-varnish-application-on-microhardness-of-enamel-surface-around-orthodontic-brackets
#14
Majid Mahmoudzadeh, Loghman Rezaei-Soufi, Nasrin Farhadian, Seyed Farzad Jamalian, Mahdi Akbarzadeh, Mohammadali Momeni, Masome Basamtabar
Introduction: Orthodontic treatment has many advantages such as esthetic improvement and self-esteem enhancement; yet it has some disadvantages such as increasing the risk of formation of white spot lesions, because it makes oral hygiene more difficult. It is rational to implement procedures to prevent these lesions. The present study was aimed to assess the effect of CO2 laser and fluoride varnish on the surface of the enamel surface microhardness around the orthodontic braces. Methods: Eighty extracted premolar teeth were selected, scaled, polished with nonfluoridated pumic and metal brackets were bonded to them...
2018: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29399309/ablative-fractional-10-600-nm-carbon-dioxide-laser-versus-non-ablative-fractional-1540-nm-erbium-glass-laser-in-egyptian-post-acne-scar-patients
#15
Mohamed L Elsaie, Shady M Ibrahim, Wael Saudi
Introduction: Non-ablative fractional erbium-doped glass 1540 nm and fractional ablative 10600 nm carbon dioxide lasers are regarded as effective modalities for treating acne atrophic scars. In this study, we aimed to compare the effectiveness of fractional CO2 laser and fractional nonablative 1540 nm erbium doped glass laser in treating post acne atrophic scars in Egyptian patients. Methods: Fifty-eight patients complaining of moderate and severe acne atrophic scars were randomly divided into 2 groups of 29 patients each...
2018: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29399308/comparison-of-tooth-color-change-after-bleaching-with-conventional-and-different-light-activated-methods
#16
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/29399305/fractionated-co2-laser-in-the-treatment-of-striae-alba-in-darker-skinned-patients-a-prospective-study
#17
Zohreh Tehranchinia, Alireza Mahboubianfar, Hoda Rahimi, Nazanin Saedi
Introduction: In recent years, the positive effect of fractional CO2 laser on increasing collagen fibers, and consequently its effect on treating striae has been suggested. The present study aims to assess the effectiveness of CO2 fractional laser 10600-nm in the treatment of striae alba. Methods: In this prospective clinical trial, 2 treatment sessions of fractional CO2 laser with 4-week interval was given to 30 patients with striae alba. Cutaneous resonance running time (CRRT) was measured at baseline and at week 4 and 3 months after the last session of laser therapy...
2018: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29392869/comparison-of-the-effectiveness-of-pulsed-dye-laser-vs-pulsed-dye-laser-combined-with-ultrapulse-fractional-co-2-laser-in-the-treatment-of-immature-red-hypertrophic-scars
#18
Hua-Wei Ouyang, Gao-Feng Li, Ying Lei, Michael H Gold, Jun Tan
INTRODUCTION: The objective was to investigate the clinical effect of an adjustable pulse width Pulsed Dye Laser (PDL) vs an adjustable pulse width PDL combined with fractional CO2 laser in treating immature red hypertrophic scars. METHODS: Fifty-six patients (56 sites)were randomly divided into a treatment group and control group. The control group was treated with the 595 nm PDL at a fluence of 7-15J/cm2 and pulse widths of 1.5-3 ms, 7 mm spot size. The treatment group was treated with a fractional CO2 laser (UltraPulse CO2 : Deep FX, Energy: 30~50 mJ, Frequency: 300 Hz, Density 5%, Scan Shape, and Spot Size were decided by shape and area of scar) after utilizing the 595 nm adjustable pulse width PDL (Fluence: 7-15J/cm2 , Pulse widths: 1...
February 2018: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29390609/direct-detection-of-s-3p-and-s-1d-generated-in-the-o-1d-ocs-reaction-mechanism-of-the-formation-of-s2-x3-%C3%A2-g-and-a1%C3%AE-g
#19
Haruka Tanimoto, Shogo Tendo, Kenichi Orimi, Hiroki Goto, Hiroshi Kohguchi, Katsuyoshi Yamasaki
Highly vibrationally excited disulfur S2 in the X3Sigma g- and a1Delta g states has been detected in the gaseous mixture of O3 and OCS irradiated with light at 266 nm. Generation of CO2 in the reaction system has been reported; however, no direct detection of sulfur atoms (S(3P) and S(1D)) has been made. In the present study, we have employed two-photon laser-induced fluorescence (2P-LIF) technique to detect S(3P) and S(1D) directly and recorded the time profiles of the atoms at varying pressures of OCS. Kinetic analyses of the profiles show that (i) S(1D) is generated in the O(1D) + OCS reaction and consumed by the S(1D) + OCS reaction, and (ii) S(3P) is mainly generated in the O(1D) + OCS reaction instead of quenching of S(1D) by collisions with OCS and ambient gases...
February 2, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29389320/integration-of-paper-based-microarray-and-time-of-flight-secondary-ion-mass-spectrometry-tof-sims-for-parallel-detection-and-quantification-of-molecules-in-multiple-samples-automatically
#20
Kuo-Jui Chu, Po-Chun Chen, Yun-Wen You, Hsun-Yun Chang, Wei-Lun Kao, Yi-Hsuan Chu, Chen-Yi Wu, Jing-Jong Shyue
With its low-cost fabrication and ease of modification, paper-based analytical devices have developed rapidly in recent years. Microarrays allow automatic analysis of multiple samples or multiple reactions with minimal sample consumption. While cellulose paper is generally used, its high backgrounds in spectrometry outside of the visible range has limited its application to be mostly colorimetric analysis. In this work, glass-microfiber paper is used as the substrate for a microarray. The glass-microfiber is essentially chemically inert SiOx, and the lower background from this inorganic microfiber can avoid interference from organic analytes in various spectrometers...
April 16, 2018: Analytica Chimica Acta
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