Abstract：
:We evaluated the acute electrophysiological effects of low-energy pulsed laser irradiation on isolated frog sciatic nerve measured by extracellular recording technique. A pulsed gallium-arsenide (GaAs) laser (wavelength: 904 nm, pulse duration 220 ns, peak power per pulse: 27W, spot size: 0.28 cm(2), total applied energy density: 0.005-2.5J/cm(2)) was used for the experiment. Sixty isolated nerves were divided into six groups (n=10), each of which received a different laser dose. In each group, action potentials were recorded before laser irradiation which served as the control data. The extracellular action potentials were recorded for each combination of 1, 3, 5, 7, 10, 13 and 15 minutes of irradiation time and 4, 8, 16, 32, 64 and 128 repetition frequency by using a BIOPAC MP 100 Acquisition System Version 3.5.7 (Santa Barbara, USA). Action potential amplitude, area, duration and conduction velocity were measured. Statistical evaluation was performed using repeated measures variance analysis by SPSS 9.0. There were no statistically significant differences for action potential amplitude, area and conduction velocity among the laser groups and control data (p>0.05). The study showed that low-energy GaAs irradiation at 4-128 Hz repetition frequencies administered for irradiation times of 1-15 min generates no effect on action potential amplitude, area, duration and conduction velocity in isolated frog sciatic nerve.
journal_name
Lasers Med Scijournal_title
Lasers in medical scienceauthors
Cömelekoğlu U,Bagiş S,Büyükakilli B,Sahin G,Erdoğan C,Kanik Adoi
10.1007/s10103-002-8268-3subject
Has Abstractpub_date
2002-01-01 00:00:00pages
62-7issue
1eissn
0268-8921issn
1435-604Xjournal_volume
17pub_type
杂志文章abstract：:In view of the limitations of bone reconstruction surgeries using autologous grafts as a gold standard, tissue engineering is emerging as an alternative, which permits the fabrication and improvement of scaffolds to stimulate osteogenesis and angiogenesis, processes that are essential for bone repair. Polymers are use...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02864-8
更新日期：2020-06-01 00:00:00
abstract：:The aim of this study was to investigate the effects of low-level laser (LLL) irradiation on the turnover of fibronectin and collagen type I in periodontal tissue during tooth movement in rats by immunohistochemistry. Thirty male Sprague-Dawley rats aged 15 weeks were assigned to either an experimental group (n = 15) ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-008-0585-8
更新日期：2010-01-01 00:00:00
abstract：:Most of the widely used scales to evaluate scars are subjective relying on clinical observations. There is a growing need to find out a noninvasive objective tool for this purpose. The study is aimed at evaluating the value of the high-resolution ultrasound in the assessment of the scars when compared with a clinical ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02830-4
更新日期：2020-03-01 00:00:00
abstract：:Precise nerve localization is of major importance in both surgery and regional anesthesia. Optically based techniques can identify tissue through differences in optical properties, like absorption and scattering. The aim of this study was to evaluate the potential of optical spectroscopy (diffuse reflectance spectrosc...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2433-1
更新日期：2018-04-01 00:00:00
abstract：:The present study aimed to evaluate in vitro whether the low-level laser (LLL) delivering fractionated total energy (multiple irradiation) or single irradiation stimulates regeneration-associated events (viability and proliferation) in stem cells from human exfoliated deciduous teeth (SHED). Cells received LLL irradia...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02836-y
更新日期：2019-12-01 00:00:00
abstract：:This study aimed to compare the effects of photobiomodulation (PBM) in different energy densities and irradiances on maintaining cell viability, and proliferation of pulp fibroblasts from human primary teeth (HPF) were cultured in DMEM and used between the fourth and eighth passages. Then, HPF were irradiated with the...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2301-z
更新日期：2017-09-01 00:00:00
abstract：:Induction of matrix synthesis by low-level laser has been demonstrated extensively. However, the question of dose- or power intensity-dependency is under-investigated. To address this issue we chose human osteoblast cell cultures and measured their alkaline phosphatase (ALP) activity after laser irradiation. The cell ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-007-0511-5
更新日期：2008-10-01 00:00:00
abstract：:In order to design and manufacture a reliable biomedical sensor, sensitive tests have to be performed. This is of superlative importance as it has to be used for the general public. Keeping this into account, the test mechanism of such an extremely sensitive sensor is being done that involves exhaustive protocols rega...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02945-8
更新日期：2020-09-01 00:00:00
abstract：:Corrosiveness of enamel surfaces of Smartbleach, Opus White, Opalescense Xtra Boost and a gel containing titanium dioxide (TiO(2)) particles, activated either by a frequency doubled neodymium: yttrium-aluminum-garnet (Nd:YAG) laser (532 nm) or a diode laser (810 nm) was evaluated by environmental scanning electron mic...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-008-0567-x
更新日期：2009-05-01 00:00:00
abstract：:Photobiomodulation (PBM) has been shown to improve wound healing by promoting mesenchymal stem cell migration and proliferation. However, it remains unknown whether an 808-nm diode laser can influence human gingival mesenchymal stem cells (HGMSCs), and which dose this works well. In the present study, it was found tha...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03040-z
更新日期：2020-10-01 00:00:00
abstract：:The potential of laser-induced fluorescence (LIF) spectroscopy for the characterization of different stages of dental caries using 404-nm diode laser excitation was investigated. In vitro spectra from 16 sound, 10 noncavitated carious and 10 cavitated carious molar teeth were recorded on a miniature fibre-optic spectr...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-010-0771-3
更新日期：2011-05-01 00:00:00
abstract：:The present study aims to identify (1) what proportion of abstracts of clinical trials presented at The American Society for Laser Medicine and Surgery (ASLMS) annual meetings are published as full reports, (2) time to publication, and (3) factors that may predict the publication of research in peer-reviewed journals....
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-007-0484-4
更新日期：2008-07-01 00:00:00
abstract：:To determine the relation between retinal microstructural changes and the response to 577-nm subthreshold micropulse laser (SML) treatment in chronic central serous chorioretinopathy (cCSC). This retrospective study included 39 eyes of 39 patients with cCSC, treated with the 577-nm SML. The eyes were evaluated in thre...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03225-6
更新日期：2021-01-07 00:00:00
abstract：:This study evaluated the microhardness and polymerization shrinkage of flowable resins that are cured using different light sources. Seven flowable resins and two light sources (diode-pumped solid-state (DPSS) laser (LAS) and Optilux 501 (OP)) were chosen for the study. To evaluate the microhardness, a mold (height: 2...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0964-4
更新日期：2012-07-01 00:00:00
abstract：:The purposes of the study were to evaluate the bond strength of bioceramic TotalFill root repair material (RRM) in retrograde cavities prepared using Er:YAG and Er,Cr:YSGG laser and steel bur, and to analyze failure modes. The root canals of 30 single-rooted teeth were endodontically treated, their root-ends were rese...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02835-z
更新日期：2020-02-01 00:00:00
abstract：:This study aimed to investigate the influence of low-power 830 nm gallium-aluminium-arsenide (GaAlAs) laser [continuous wave (CW) 40 mW and fluence 4 J/cm(2), with total energy density of 16 J/cm(2)] on the healing of human infra-bony defects treated with bioactive glass graft material. Twenty patients with chronic pe...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-008-0576-9
更新日期：2009-05-01 00:00:00
abstract：:The aim of this study was to evaluate the shear bond strength (SBS) of a microhybrid composite resin bonded with three different adhesive systems to Er:YAG laser- (EL) or bur-prepared dentin surfaces and to analyze the quality and ultrastructure of the adhesive-dentin interfaces by scanning electron microscopy (SEM). ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-013-1424-0
更新日期：2015-02-01 00:00:00
abstract：:The aim of this study was to evaluate the bactericidal effect of ultraviolet (UV) light at 265-nm (UVC) and 310-nm (UVB) wavelengths from a newly developed UV light-emitting diode (LED) device against cariogenic bacteria in vitro. Suspensions of Streptococcus mutans (S. mutans) and Streptococcus sobrinus were directly...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-018-2685-4
更新日期：2019-07-01 00:00:00
abstract：:A limited number of studies have evaluated the efficacy and safety of electrode pin fractional radiofrequency (FRF) for periorbital wrinkle treatment in Asian patients, but none have measured noninvasive methodological objective parameters such as periorbital wrinkle area. This study aimed to investigate the efficacy ...
journal_title：Lasers in medical science
pub_type： 临床试验,杂志文章
doi：10.1007/s10103-016-2084-7
更新日期：2017-01-01 00:00:00
abstract：:The current study evaluates whether the addition of low-level laser therapy into standard conventional physical therapy in elderly with bilateral symptomatic tri-compartmental knee arthritis can successfully postpone the need for joint replacement surgery. A prospective randomized cohort study of 100 consecutive unsel...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-015-1814-6
更新日期：2015-12-01 00:00:00
abstract：:Core-shell nanoparticles have unusual physical, chemical and biological properties. Until now, for the Ag and TiO2 combination, only Ag core and TiO2 shell nanoparticles have been practically demonstrated. In this investigation, novel TiO2@Ag core-shell (TiO2 core and Ag shell) nanoparticles were produced via ultrason...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-015-1855-x
更新日期：2016-02-01 00:00:00
abstract：:Zirconia has been regarded as a promising material for dental implants, and Nd:YAG laser treatment has been proposed as a potential strategy to improve its bioactivity. The main aim of the present study was to evaluate the in vitro behavior of human fetal osteoblasts in contact with laser-textured zirconia implant sur...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03066-3
更新日期：2020-12-01 00:00:00
abstract：:Hyperhidrosis and bromhidrosis were lately reported as novel side effects of laser-assisted removal of axillary hair. The goal of our study was to evaluate the reversibility of these two side effects. An observational, single-center cohort study included over a 30-month screening period 30 patients with newly reported...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-013-1404-4
更新日期：2014-03-01 00:00:00
abstract：:Low-intensity laser therapy is based on the excitation of endogenous chromophores in biotissues and free-radical generation could be involved in its biological effects. In this work, the effects of the low-intensity infrared laser on plasma protein content and oxidative stress in blood from Wistar rats were studied. B...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0945-7
更新日期：2012-01-01 00:00:00
abstract：:Recent studies have investigated whether low level laser therapy (LLLT) can optimize human muscle performance in physical exercise. This study tested the effect of LLLT on muscle performance in physical strength training in humans compared with strength training only. The study involved 36 men (20.8±2.2 years old), cl...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-010-0855-0
更新日期：2011-05-01 00:00:00
abstract：:Laser excision has been used with increasing success to treat oral leukoplakia. The aim of the present study was to evaluate whether clinical healing of a leukoplakia after laser surgery is associated with a normal functional status of the new epithelium and whether pathological alterations in these parameters are rel...
journal_title：Lasers in medical science
pub_type： 临床试验,杂志文章
doi：10.1007/s10103-011-0941-y
更新日期：2012-01-01 00:00:00
abstract：:The objective of this study was to evaluate the safety and efficacy of flexible ureteroscopy (FURS) and holmium:YAG laser lithotripsy for the treatment of upper urinary tract stones in patients on active oral anticoagulants. The records of 1081 patients who underwent flexible ureteroscopic holmium:YAG (Ho:YAG) laser l...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2289-4
更新日期：2017-09-01 00:00:00
abstract：:Osteoarthritis (OA) triggers increased levels of inflammatory markers, including prostaglandin (PG) E2 and proinflammatory cytokines. The elevation of cytokine levels is closely associated with increased articular tissue degeneration. Thus, the use of combination therapies may presumably be able to enhance the effects...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-016-2091-8
更新日期：2017-01-01 00:00:00
abstract：:The erbium:YSGG and erbium:YAG lasers are used for tissue ablation in dermatology, dentistry and ophthalmology. The purpose of this study was to compare germanium oxide and sapphire optical fibres for transmission of sufficient Q-switched erbium laser pulse energies for potential use in both soft and hard tissue ablat...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-004-0316-8
更新日期：2004-01-01 00:00:00
abstract：:A growing number of laboratory and clinical studies over the past 10 years have shown that low-level laser stimulation (633 or 670 nm) at extremely low power densities (about 0.15 mW/cm(2)), when administered through a particular emission mode, is capable of eliciting significant biological effects. Studies on cell cu...
journal_title：Lasers in medical science
pub_type： 杂志文章,评审
doi：10.1007/s10103-010-0837-2
更新日期：2011-01-01 00:00:00
