Laser Surgery Medical and Health News Headlines

All Recent Laser Surgery Medical News Headlines

Scanning electron microscopy (SEM) and X-ray dispersive spectrometry evaluation of direct laser metal sintering surface and human bone interface: a case series
Abstract  Recent studies have shown that direct laser metal sintering (DLMS) produces structures with complex geometry and consequently that allow better osteoconductive properties. The aim of this patient report was to evaluate the early bone response to DLMS implant surface retrieved from human jaws. Four experimental DLMS implants were inserted in the posterior mandible of four patients during conventional dental implant surgery. After 8 weeks, the micro-implants and the surrounding tissue were removed and prepared for scanning electron microscopy (SEM) and histomorphometric analysis to evaluate the bone–implant interface. The SEM and EDX evaluations showed a newly formed tissue composed of calcium and phosphorus. The bone-to-implant contact presented a mean of 60.5 ...... MORE...
POSTED 08/28/2010 at 12:56 AM --


Histological evaluation of vertical laser channels from ablative fractional resurfacing: an ex vivo pig skin model
Abstract  Ablative fractional resurfacing (AFR) represents a new treatment potential for various skin conditions and new laser devices are being introduced. It is important to gain information about the impact of laser settings on the dimensions of the created laser channels for obtaining a safe and efficient treatment outcome. The aim of this study was to establish a standard model to document the histological tissue damage profiles after AFR and to test a new laser device at diverse settings. Ex vivo abdominal pig skin was treated with a MedArt 620, prototype fractional carbon dioxide (CO2) laser (Medart, Hvidovre, Denmark) delivering single microbeams (MB) with a spot size of 165 μm. By using a constant pulse duration of 2 ms, intensities of 1–18 W, single and 2â€...... MORE...
POSTED 08/27/2010 at 12:13 PM --


Taking the Stigma out of Astigmatism
(Source: Dishler Laser)... MORE...
POSTED 08/27/2010 at 04:03 AM --


Experimental validation of the effects of microvasculature pigment packaging on in vivo diffuse reflectance spectroscopy
Abstract (Source: Lasers in Surgery and Medicine)... MORE...
POSTED 08/26/2010 at 04:32 AM --


Micromorphology of resin–dentin interfaces using one‐bottle etch&rinse and self‐etching adhesive systems on laser‐treated dentin surfaces: A confocal laser scanning microscope analysis
Abstract (Source: Lasers in Surgery and Medicine)... MORE...
POSTED 08/26/2010 at 04:32 AM --


Comparison of Er:YAG laser, piezoelectric, and drill osteotomy for dental implant site preparation: A biomechanical and histological analysis in sheep
Abstract (Source: Lasers in Surgery and Medicine)... MORE...
POSTED 08/26/2010 at 04:32 AM --


In vivo femtosecond laser subsurface scleral treatment in rabbit eyes
Abstract (Source: Lasers in Surgery and Medicine)... MORE...
POSTED 08/26/2010 at 04:32 AM --


Safety and effectiveness of black tattoo clearance in a pig model after a single treatment with a novel 758 nm 500 picosecond laser: A pilot study
Abstract (Source: Lasers in Surgery and Medicine)... MORE...
POSTED 08/26/2010 at 04:32 AM --


Thulium laser urethrotomy for urethral stricture: A preliminary report
Abstract (Source: Lasers in Surgery and Medicine)... MORE...
POSTED 08/26/2010 at 04:31 AM --


The relationship between protoporphyrin IX photobleaching during real‐time dermatological methyl‐aminolevulinate photodynamic therapy (MAL‐PDT) and subsequent clinical outcome
Abstract (Source: Lasers in Surgery and Medicine)... MORE...
POSTED 08/26/2010 at 04:31 AM --


Non‐ablative 1,550 nm fractional laser therapy versus triple topical therapy for the treatment of melasma: A randomized controlled split‐face study
Abstract (Source: Lasers in Surgery and Medicine)... MORE...
POSTED 08/26/2010 at 04:31 AM --


In memoriam “Ellet Haller Drake, M.D.” May 26, 1914–July 2, 2010; co‐founder of the ASLMS
(Source: Lasers in Surgery and Medicine)... MORE...
POSTED 08/26/2010 at 04:31 AM --


Bactericidal Effect of Nd:YAG and Er:YAG Lasers in Experimentally Infected Curved Root Canals
Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)... MORE...
POSTED 08/25/2010 at 10:02 PM --


Effect of Chlorhexidine Gluconate, Clearfil Protect Bond, and KTP Laser on Microleakage Under Metal Orthodontic Brackets with Thermocycling
Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)... MORE...
POSTED 08/25/2010 at 12:06 PM --


Effect of Low-Level Laser Irradiation on Unresponsive Oral Lichen Planus: Early Preliminary Results in 13 Patients
Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)... MORE...
POSTED 08/25/2010 at 12:01 PM --


Electrospun Poly(ɛ-Caprolactone) Scaffold for Suture-Free Solder-Mediated Laser-Assisted Vessel Repair
Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)... MORE...
POSTED 08/25/2010 at 11:58 AM --


Low-level laser therapy (LLLT; 780 nm) acts differently on mRNA expression of anti- and pro-inflammatory mediators in an experimental model of collagenase-induced tendinitis in rat
Abstract  Low-level laser therapy (LLLT) has been found to produce anti-inflammatory effects in a variety of disorders. Tendinopathies are directly related to unbalance in expression of pro- and anti-inflammatory cytokines which are responsible by degeneration process of tendinocytes. In the current study, we decided to investigate if LLLT could reduce mRNA expression for TNF-α, IL-1β, IL-6, TGF-β cytokines, and COX-2 enzyme. Forty-two male Wistar rats were divided randomly in seven groups, and tendinitis was induced with a collagenase intratendinea injection. The mRNA expression was evaluated by real-time PCR in 7th and 14th days after tendinitis. LLLT irradiation with wavelength of 780 nm required for 75 s with a dose of 7.7 J/cm2 was administered in distinct ...... MORE...
POSTED 08/24/2010 at 12:07 PM --


Microtensile bond strength of composite resin to glass-infiltrated alumina composite conditioned with Er,Cr:YSGG laser
This study evaluated the morphological effects of Er,Cr:YSGG laser irradiation on aluminous ceramic, and verified the microtensile bond strength of composite resin to ceramic following silica coating or laser irradiation. In-Ceram Alumina ceramic blocks were polished, submitted to airborne particle abrasion (110 Î¼m Al2O3), and conditioned with: (CG) tribochemical silica coating (110 Î¼m SiO2) + silanization (control group); (L1-L10) Er,Cr:YSGG laser (2.78 Î¼m, 20 Hz, 0.5 to 5.0 W) + silanization. Composite resin blocks were cemented to the ceramic blocks with resin cement. These sets were stored in 37°C distilled water (24 h), embedded in acrylic resin, and sectioned to produce bar specimens that were submitted to microtensile testing. Bond strength values ...... MORE...
POSTED 08/24/2010 at 12:07 PM --


Editorial Board
(Source: Photodiagnosis and Photodynamic Therapy)... MORE...
POSTED 08/24/2010 at 04:06 AM --


An analysis of the shear strength of the bond between enamel and porcelain laminate veneers with different etching systems: acid and Er,Cr:YSGG laser separately and combined
Abstract  Conditioning of the enamel surface is now an accepted and widely applied technique used to improve retention in porcelain laminate veneer restorations. The aim of this study was to evaluate strength of the bond between porcelain laminate veneers and tooth surfaces etched with acid and laser, separately and together. The teeth studied comprised 60 incisors extracted for periodontal reasons. These were divided into four groups according to etching method: group 1, acid etching alone; group 2, acid etching followed by laser etching; group 3, laser etching followed by acid etching; group 4, laser etching alone. The teeth were etched with 37% phosphoric acid and a Er,Cr:YSGG laser system. In addition, 60 IPS Empress II cylindrical blocks 2 mm in height and 5 ...... MORE...
POSTED 08/20/2010 at 12:01 PM --


 

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