MedWorm: Laser Surgery Top 20

In vivo confocal laser scanning microscopy of hypopigmented macules: a preliminary comparison of confocal images in vitiligo, nevus depigmentosus and postinflammatory hypopigmentation

Lasers in Medical Science — Wed, 24 Feb 2010 06:50:00 +0100

Abstract The use of confocal laser scanning microscopy (CLSM) may be an eligible alternative for confirmation of the diagnosis of hypopigmented macules. Our purpose was to evaluate CLSM features for non-invasive imaging of vitiligo, nevus depigmentosus and postinflammatory hypopigmentation in vivo. A total of 68 patients with a clinical diagnosis of the aforementioned diseases were included in this study. CLSM was performed on lesional and adjacent normal appearing skin for all patients. In the active and stable phases of vitiligo, CLSM demonstrated a complete loss of melanin in lesional skin in 14 of 25 patients (56.0%) and 16 of 20 patients (80.0%), respectively. In 11 of 25 (44.0%) patients, the amount of melanin in lesional skin decreased in the active phase of vitilig...

MedWorm Message: Get the very latest Swine Flu news via the MedWorm Swine Flu RSS news feed - updated hourly from thousands of authoritative health and news sources.

Low-level Er:YAG laser irradiation enhances osteoblast proliferation through activation of MAPK/ERK

Lasers in Medical Science — Thu, 25 Feb 2010 17:55:52 +0100

Abstract Although the use of high-level Er:YAG laser irradiation has been increasing in periodontal and peri-implant therapy, the effects of low-level Er:YAG laser on surrounding tissues and cells remain unclear. In the present study, the effects of low-level Er:YAG laser irradiation on osteoblast proliferation were investigated. Cells of the osteoblastic cell line MC3T3-E1 were treated with low-level Er:YAG laser irradiation with various combinations of laser settings (fluence 0.7–17.2 J/cm2) and in the absence or presence of culture medium during irradiation. On day 1 and/or day 3, cell proliferation and death were determined by cell counting and by measurement of lactate dehydrogenase (LDH) levels. Further, the role of mitogen-activated protein kinase (MAPK) pathw...

In vitro analysis of human tooth pulp chamber temperature after low-intensity laser therapy at different power outputs

Lasers in Medical Science — Thu, 11 Feb 2010 11:48:56 +0100

Abstract In vitro studies have provided conflicting evidence of temperature changes in the tooth pulp chamber after low-level laser irradiation of the tooth surface. The present study was an in vitro evaluation of temperature increases in the human tooth pulp chamber after diode laser irradiation (GaAlAs, λ = 808 nm) using different power densities. Twelve human teeth (three incisors, three canines, three premolars and three molars) were sectioned in the cervical third of the root and enlarged for the introduction of a thermocouple into the pulp chamber. The teeth were irradiated with 417 mW, 207 mW and 78 mW power outputs for 30 s on the vestibular surface approximately 2 mm from the cervical line of the crown. The highest average increas...

Comparison of a 1,550 nm Erbium:Glass fractional laser and a chemical reconstruction of skin scars (CROSS) method in the treatment of acne scars: A simultaneous split-face trial

Lasers in Surgery and Medicine — Mon, 27 Jul 2009 23:00:00 +0100

Acne scarring is a common complication of acne but no effective single treatment modality has been developed. To compare the efficacy of 1,550 nm Er:Glass fractional laser and chemical reconstruction of skin scar (CROSS) method in the treatment of acne scars.A split-face trial was conducted in 20 patients (10 rolling, 10 icepick types) with acne scars. One side was treated with the 1,550 nm Er:Glass fractional laser three times with a 6-week interval. And the other side was treated with CROSS method two times every 12 weeks.Significant improvement was observed in both sides of the face. In rolling type, the objective and subjective improvement rates were significantly higher in the sides treated with laser than CROSS method. However, in icepick type, there were no statistically significant...

Laser Tattoo Removal Video

Aesthetic Lasers — Thu, 25 Feb 2010 18:47:21 +0100

This is a good video report, which covers most of the things a consumer should know about tattoo removal by a medical laser. Join Neil Sadick, MD, as he performs laser tattoo removal and provides tips for what to expect from the procedure. Laser Tattoo Removal (opens in new window) Related Posts:More About Laser Tattoo RemovalVideo of Laser [...]Post from: Aesthetic Laser OffersLaser Tattoo Removal Video (Source: Aesthetic Lasers)

Thermal Effects from Modified Endodontic Laser Tips Used in the Apical Third of Root Canals with Erbium-Doped Yttrium Aluminium Garnet and Erbium, Chromium–Doped Yttrium Scandium Gallium Garnet Lasers

Photomedicine and Laser Surgery — Fri, 05 Mar 2010 04:04:40 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

MedWorm Message: Get the very latest Swine Flu news via the MedWorm Swine Flu RSS news feed - updated hourly from thousands of authoritative health and news sources.

Effect of GaAlAs Laser Irradiation on the Epiphyseal Cartilage of Rats

Photomedicine and Laser Surgery — Thu, 04 Mar 2010 19:00:35 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Comparison of Neodymium-Doped Yttrium Aluminum Garnet Laser Treatment with Cold Knife Endoscopic Incision of Urethral Strictures in Male Patients

Photomedicine and Laser Surgery — Thu, 04 Mar 2010 18:53:00 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Ultra-Structural Changes at the Apical Stop Irradiated with CO2 Laser

Photomedicine and Laser Surgery — Thu, 04 Mar 2010 18:57:56 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Laser Phototherapy as Topical Prophylaxis Against Radiation-Induced Xerostomia

Photomedicine and Laser Surgery — Fri, 09 Oct 2009 11:42:24 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Laser treatment of mucosal venous malformations of the upper aerodigestive tract in 50 patients

Lasers in Medical Science — Wed, 10 Mar 2010 18:27:47 +0100

We examined the clinical appearance of mucosal venous malformations of the upper aerodigestive tract with regard to their accessibility to laser therapy and further assessed the value of treatment of these lesions with the Nd:YAG and CO2 lasers. A retrospective study was performed in 50 patients who had undergone laser treatment for mucosal low-flow vascular malformations of the upper aerodigestive tract. Records were reviewed for demographic data, extent of the lesion, treatment modality, required number of therapy sessions and the therapeutic outcome. Follow-up was performed by postinterventional clinical examination and additional interview by phone for current status. Between 1 July 2001 and 30 September 2008 32 women and 18 men received laser treatment and were followed up until ...

MedWorm Message: Get the very latest Swine Flu news via the MedWorm Swine Flu RSS news feed - updated hourly from thousands of authoritative health and news sources.

Performance of laser fluorescence at tooth surface and histological section

Lasers in Medical Science — Thu, 11 Mar 2010 02:49:56 +0100

This study aimed to evaluate a laser fluorescence device (the DIAGNOdent) and a visual classification system (ICDAS-II) for occlusal caries diagnosis. It also aimed to determine whether fluorescence measurements taken at the tooth surface correlate with the fluorescence measurements taken within the body of the lesion. The occlusal surfaces of 100 extracted permanent teeth were examined using ICDAS-II and DIAGNOdent (LF-tooth). Serial sections were made and lesion depth was assessed histologically. DIAGNOdent readings were also taken from the sections (LF-section). There were significant positive strong correlations between ICDAS-II and histology (rS = 0.71) and LF-section and histology (rS = 0.70), and only moderate correlations between LF-tooth and histology (rS = 0.51) ...

Low-Intensity Light Therapy: Exploring the Role of Redox Mechanisms

Photomedicine and Laser Surgery — Tue, 29 Jul 2008 12:38:40 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0: 321-326. Abstract Low-intensity light therapy (LILT) appears to be working through newly recognized photoacceptor systems. The mitochondrial electron transport chain has been shown to be photosensitive to red and near-infrared (NIR) light. Although the underlying ... (Source: Photomedicine and Laser Surgery)

Port wine stain progression: A potential consequence of delayed and inadequate treatment?

Lasers in Surgery and Medicine — Tue, 07 Jul 2009 23:00:00 +0100

We report a 43 year-old man born with a port-wine stain on the right side of his face that extended in the V2 distribution on his face. He had undergone several sessions with a pulsed-dye laser, the sequential dual-wavelength (595 nm and 1064 nm) laser and a CO2 resurfacing laser from the age of 26 but failed to follow through with a sufficient number of treatments to prevent hypertrophy.Due to an insufficient number and interval of treatments (with only 7 treatments over 16 years starting at age 26) with the various lasers, the patient's port wine stain continued to progress in color and development of nodularity.Patients born with port wine stains should have early laser treatment to achieve optimal results. Delay in treatment, as in this patient until age 26, may result in hard to treat...

Guaranteed Lowest Price