|
|
|
|
Laser Surgery Medical and Health News Headlines
|
|
|
|
|
|
|
All Recent Laser Surgery Medical News Headlines |
|
|
|
|
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 , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)...
POSTED 03/04/2010 at 10:04 PM --
|
Effect of GaAlAs Laser Irradiation on the Epiphyseal Cartilage of Rats
Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)...
POSTED 03/04/2010 at 01:00 PM --
|
Ultra-Structural Changes at the Apical Stop Irradiated with CO2 Laser
Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)...
POSTED 03/04/2010 at 12:57 PM --
|
Comparison of Neodymium-Doped Yttrium Aluminum Garnet Laser Treatment with Cold Knife Endoscopic Incision of Urethral Strictures in Male Patients
Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)...
POSTED 03/04/2010 at 12:53 PM --
|
Laser Tattoo Removal Video
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)...
POSTED 02/25/2010 at 12:47 PM --
|
Low-level Er:YAG laser irradiation enhances osteoblast proliferation through activation of MAPK/ERK
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......
POSTED 02/25/2010 at 11:55 AM --
|
In vivo confocal laser scanning microscopy of hypopigmented macules: a preliminary comparison of confocal images in vitiligo, nevus depigmentosus and postinflammatory hypopigmentation
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......
POSTED 02/24/2010 at 12:50 AM --
|
Laser-induced effects in different biological samples
Abstract Experiments were carried out on cancerous HeLa cells and blood serum using a double integrating sphere and a He-Ne laser to
investigate the optical properties and cellular effects due to photodynamic therapy (PDT). In the first experiment, HeLa cells
were exposed to Photofrin at concentrations of 0, 10, 20, 30, 50 and 112.4 µg/ml at an irradiance of 0.2 W/cm2 using diode laser light. Using a confocal microscope, cell debris and morphological changes in HeLa cells were recorded at
different Photofrin concentrations. The results showed cell debris in HeLa cells at the highest concentration of Photofrin.
In a second experiment, photobleaching was observed in HeLa cells in the presence of various concentrations of 5-aminolaevulinic
acid ranging from 0–50&n......
POSTED 02/20/2010 at 12:52 AM --
|
Photomedicine and LLLT Literature Watch
Photomedicine and Laser Surgery Feb 2010, Vol. 28, No. 1: 155-155. (Source: Photomedicine and Laser Surgery)...
POSTED 02/17/2010 at 11:58 AM --
|
Calendar of Laser Courses and Meetings
Photomedicine and Laser Surgery Feb 2010, Vol. 28, No. 1: 157-158. (Source: Photomedicine and Laser Surgery)...
POSTED 02/17/2010 at 11:57 AM --
|
Effects of KTP laser on oral soft tissues. An in vitro study
Abstract A biopsy is a surgical procedure performed to establish a clear diagnosis of a lesion in order to clarify a clinical diagnostic
suspicion. During a biopsy procedure it is fundamental to maintain safe and readable cut margins in order to permit histological
visualization of possible marginal infiltrations or malignant transformation of a lesion. The aim of this study was to evaluate
the histological peripheral damage caused by application of a KTP (potassium titanium phosphate) laser during oral soft tissue
biopsy procedures. A KTP laser (λ 532 nm) at different power settings and fluences was used to obtain 45 samples from pig
cadaver tongues. The samples were then subdivided into five groups of nine samples each. A final specimen was taken by scalpel
as a co......
POSTED 02/16/2010 at 12:06 PM --
|
Microleakage of repaired class V silorane and nano-hybrid composite restorations after preparation with erbium:yttrium–aluminum–garnet laser and diamond bur
Abstract The aim of this in vitro study was to compare the microleakage of repaired class V resin composite restorations prepared either
by Er:YAG laser or a diamond bur. Ninety-six intact human molar teeth were randomly distributed into eight groups. In the
first four groups, class V cavities (3 × 3 × 3 mm) prepared on the buccal and lingual surfaces of the teeth using an erbium:yttrium-aluminum-garnet
laser (VersaWave, HOYA ConBio, Japan). Similar class V cavities were prepared in the second four groups using a diamond bur
(S-Class, Komet, UK). Teeth in groups 1, 2, and 5, 6 were restored with a nano-ceramic composite (Ceram.X duo, DENTSPLY),
whereas a silorane material (Filtek Silorane, 3M ESPE) was used to restore cavities in groups 3, 4, and 7, 8. Two different
adhe......
POSTED 02/16/2010 at 12:06 PM --
|
Comparing the reliability of a new fluorescence camera with conventional laser fluorescence devices in detecting caries lesions in occlusal and smooth surfaces of primary teeth
In conclusion, the FC showed high reliability for occlusal and smooth surfaces, similar
to the other fluorescence methods tested. Additionally, prolonged air drying increased the FC measurements.
Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s10103-010-0757-1Authors
Monique Saveriano De Benedetto, Faculdade de Odontologia da Universidade de São Paulo Department of Pediatric Dentistry São Paulo BrazilCaroline Carvalho Morais, Faculdade de Odontologia da Universidade de São Paulo Department of Pediatric Dentistry São Paulo BrazilTatiane Fernandes Novaes, Faculdade de Odontologia da Universidade de São Paulo Department of Pediatric Dentistry São Paulo BrazilJonas de Almeida Rodrigues, University of Bern School of Dental Medicine Bern SwitzerlandMariana Minatel B......
POSTED 02/15/2010 at 12:00 PM --
|
Removal of orange eyebrow tattoo in a single session with the Q-switched Nd:YAG 532-nm laser
Content Type Journal ArticleCategory Letter to the editorDOI 10.1007/s10103-009-0748-2Authors
Rita Guedes, Centro Hospitalar de Vila Nova de Gaia Dermatology Department Rua Conceição Fernandes 4430 Vila Nova de Gaia PortugalLuiz Leite, Clínica Laser de Belém Dermatology Department Calçada da Ajuda, 72B 1300 Lisbon Portugal
Journal Lasers in Medical ScienceOnline ISSN 1435-604XPrint ISSN 0268-8921 (Source: Lasers in Medical Science)...
POSTED 02/13/2010 at 12:48 AM --
|
Shear bond strength of bonding to enamel with different laser irradiation distances
Abstract The aim of this study was to investigate the shear bond strength of bonding to enamel following laser etching with the Er:YAG
or Er,Cr:YSGG laser using different irradiation distances. Of 99 extracted human premolar teeth, 90 were divided equally into
nine groups. In the control group (group A) the teeth were etched with 38% phosphoric acid. In the laser groups (groups B–I)
the enamel surface of the teeth was laser-irradiated, groups B–E with the Er:YAG laser and groups F–I with the Er,Cr:YSGG
laser at distances of 1, 2, 4 and 6 mm, respectively. The shear bond strengths were tested using a universal testing machine.
The shear bond strengths associated with the Er:YAG laser at 4 and 6 mm and the Er,Cr:YSGG laser at 2, 4 and 6 mm were significan......
POSTED 02/12/2010 at 01:09 AM --
|
In vitro analysis of human tooth pulp chamber temperature after low-intensity laser therapy at different power outputs
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......
POSTED 02/11/2010 at 05:48 AM --
|
Nikon And LASIK
Vision starts with a camera of sorts, for people this is the human eye. Just like a camera, light enters an optical system and is focused with some optics onto the retina where it is transformed into electrical impulses that are received by a big computer processor we call "the brain." In cameras it is all about the quality of the optics, the shape of the optics, and the size of the optics to get enough light into the camera for the film, or the sensor to be able to transform the light into electrical impulses. Our retina is a much better light sensor than most cameras and certainly more compact than the D3. It is about the size of the sensor in a Coolpix, but with the light sensitivity of its much bigger brother.
Quite simply, the more light you have, the......
POSTED 02/09/2010 at 10:32 AM --
|
Depth sensitivity analysis of functional near-infrared spectroscopy measurement using three-dimensional Monte Carlo modelling-based magnetic resonance imaging
In this study a realistic head model generated
from structure data from magnetic resonance imaging (MRI) was introduced into a three-dimensional Monte Carlo code and the
sensitivity of functional near-infrared measurement was analysed. The effects of the distance between source and detector,
and of the optical properties of the probed tissues, on the sensitivity of the optical measurement to deep layers of the adult
head were investigated. The spatial sensitivity profiles of photons in the head, the so-called banana shape, and the partial
mean optical path lengths in the skin-scalp and brain tissues were calculated, so that the contribution of different parts
of the head to near-infrared spectroscopy signals could be examined. It was shown that the signal detected in brain function
......
POSTED 02/08/2010 at 11:30 AM --
|
Comparative effects of wavelengths of low-power laser in regeneration of sciatic nerve in rats following crushing lesion
Abstract Peripheral nerves are structures that, when damaged, can result in significant motor and sensory disabilities. Several studies
have used therapeutic resources with the aim of promoting early nerve regeneration, such as the use of low-power laser. However,
this laser therapy does not represent a consensus regarding the methodology, thus yielding controversial conclusions. The
objective of our study was to investigate, by functional evaluation, the comparative effects of low-power laser (660 nm and
830 nm) on sciatic nerve regeneration following crushing injuries. Twenty-seven Wistar rats subjected to sciatic nerve injury
were divided into three groups: group sham, consisting of rats undergoing simulated irradiation; a group consisting of rats
subjected to......
POSTED 02/05/2010 at 01:02 AM --
|
Efficacy of high intensity diode laser as an adjunct to non-surgical periodontal treatment: a randomized controlled trial
Abstract The high intensity diode laser has been studied in periodontics for the reduction of subgingival bacteria in non-surgical
treatment. Our study evaluated the bacterial effect as well as changes in periodontal clinical parameters promoted by root
scaling and planing associated with this wavelength. Twenty-seven patients randomly assigned in two groups underwent root
scaling and planing on the tested sites, and only the experimental group received the diode laser irradiation. Among the clinical
parameters studied, the clinical probing depth (CPD) and the clinical attachment level (CAL) resulted in significant enhancement
in the control group when compared with the experimental group (P = 0.014 and P = 0.039, respectively). The results were similar for both gro......
POSTED 02/03/2010 at 11:54 AM --
|
|
|
|
|
|
 |
|
|
|
|
|
IMPORTANT NOTICE:
The information provided on this site is intended for your general knowledge only and is not a substitute for professional
medical advice or treatment for specific medical conditions. You should not use this information to diagnose or treat a health problem or disease without consulting with a
qualified healthcare provider. Please consult your healthcare provider with any questions or concerns you may have regarding your condition.
|
|
|
|
|
|
|
|
Featured Product! |
 |
|
Total Balance
Men's Plus |
|
"The restoration and maintenance of normal organ and brain function, a strong immune system, and the balancing of hormones is the key to vibrant health and in avoiding premature-aging!" |
|
CLICK HERE
for more info... |
|
|
