Abstract：
:The effect of the 488-nm wavelength of argon laser at different power densities and irradiation times on the degree of conversion (DC), temperature rise, water sorption, solubility, flexural strength, flexural modulus, and microhardness of bisphenole A glycol dimethacrylate and triethylen glycol dimethacrylate with a mass ratio of 75:25 was studied. Camphorquinone and N,N'-dimethyl aminoethyl methacrylate were added to the monomer as a photo initiator system. The DC% of the resin was measured using Fourier transform infrared spectroscopy. The maximum DC% (50%), which was reached in 20 s, and temperature rise because of the reaction (13.5 degrees C) were both higher at 1075 than 700 mW/cm(2). Water sorption and solubility were measured according to ISO4049, which in our case were 23.7 and 2.20 microg/mm(3) at 1075 mW/cm(2), respectively. A flexural modulus of 1.1 GPa and microhardness of 19.6 kg/mm(2) were achieved above the power density. No significant difference was observed (i.e., p>0.05) for water sorption and flexural strength at 700 and 1075 mW/cm(2).
journal_name
Lasers Med Scijournal_title
Lasers in medical scienceauthors
Khosroshahi ME,Atai M,Nourbakhsh MSdoi
10.1007/s10103-007-0487-1subject
Has Abstractpub_date
2008-10-01 00:00:00pages
399-406issue
4eissn
0268-8921issn
1435-604Xjournal_volume
23pub_type
杂志文章abstract：:Acupuncture is a form of traditional Chinese medicine that has developed over thousands of years. We studied the effects of laser puncture, needle acupuncture, and light stimulation on cerebral blood flow in 15 healthy volunteers (mean age 25.0±1.9 years, 5 female, 10 male) with non-invasive transcranial Doppler sonog...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s101030050048
更新日期：2000-01-01 00:00:00
abstract：:Facial vitiligo has considerable psychological and emotional impacts. Though topical corticosteroids are the mainstay treatment, adverse reactions are a concern for prolonged use. Additionally, 308-nm excimer lamps have been widely used in vitiligo. This study aimed to assess the effectiveness of a combined 308-nm exc...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-020-03048-5
更新日期：2020-12-01 00:00:00
abstract：:Skin flaps are still a matter of concern among surgeons, as failures can occur leading to flap necrosis. However, low-level laser irradiation has been reported as an effective tool to improve the viability of ischemic flaps, yet its mechanisms of action remain unclear. We investigated the effect of low-level laser irr...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-1011-1
更新日期：2012-05-01 00:00:00
abstract：:Inflammation of synovial membrane and degeneration of articular cartilage in osteoarthritis (OA) lead to major changes in joint space width (JSW) and biochemical components such as collagen-II telopeptide (CTX-II) and matrix metallo protineases (MMP-3, 8, and 13). Low-level laser therapy (LLLT) is thought to have an a...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-016-2114-5
更新日期：2017-02-01 00:00:00
abstract：UNLABELLED:Connective tissue graft (CTG), which is considered to be among the best techniques for treating gingival recession, has presented stable long-term results. However, this technique causes morbidity and discomfort in the palatine region due to graft removal at that site. A previous study reports that photobiom...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-016-1988-6
更新日期：2016-09-01 00:00:00
abstract：:Low-level red laser (LLRL)-tissue interactions have a wide range of medical applications and are garnering increased attention. Although the positive effects of low-level laser therapy (LLLT) have frequently been reported and enhanced collagen accumulation has been identified as one of the most important mechanisms in...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-015-1823-5
更新日期：2015-12-01 00:00:00
abstract：:Recurrent herpes labialis is a worldwide life-long oral health problem that remains unsolved. It affects approximately one third of the world population and causes frequent pain and discomfort episodes, as well as social restriction due to its compromise of esthetic features. In addition, the available antiviral drugs...
journal_title：Lasers in medical science
pub_type： 杂志文章,评审
doi：10.1007/s10103-013-1311-8
更新日期：2014-07-01 00:00:00
abstract：:Quantitative characterization of skin collagen on photo-thermal response and its regeneration process is an important but difficult task. In this study, morphology and spectrum characteristics of collagen during photo-thermal response and its light-induced remodeling process were obtained by second-harmonic generation...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-013-1296-3
更新日期：2014-01-01 00:00:00
abstract：:The aim of the present study was to investigate and compare the effects of high intensity laser therapy (HILT) and low level laser therapy (LLLT) on the treatment of patients with Bell's palsy. Forty-eight patients participated in and completed this study. The mean age was 43 ± 9.8 years. They were randomly assigned i...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-013-1352-z
更新日期：2014-01-01 00:00:00
abstract：:The objective of this study was to determine the efficacy and safety of a novel method of facial rejuvenation using a 2940-nm erbium:YAG laser with Spatially Modulated Ablation™. A pilot study was performed in 16 women with moderate to severe signs of facial aging relative to chronological age, who underwent two treat...
journal_title：Lasers in medical science
pub_type： 临床试验,杂志文章
doi：10.1007/s10103-016-2010-z
更新日期：2016-09-01 00:00:00
abstract：:This in vitro study evaluated the role of photobiomodulation therapy (PBMT) on viability and migration of human dental pulp stem cells (hDPSCs) and its association to epigenetic mechanisms such as histone acetylation. The hDPSCs were characterized and assigned into control and PBMT groups. For the PBMT, five laser irr...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02931-0
更新日期：2020-04-01 00:00:00
abstract：:Tissue characterisation by fluorescence imaging, using exogenous fluorophores, is a promising method for cancer detection. Histochemical alterations in the composition of mucins, when neoplastic transformations occur, could be exploited to derive more selective fluoroprobes indicative of early malignant transformation...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/pl00011361
更新日期：2001-01-01 00:00:00
abstract：:The in vivo photodynamic activities of four poly(ethylene glycol) (PEG) conjugates of the photosensitiser 5,10,15,20-tetrakis-(m-hydroxyphenyl)chlorin (mTHPC, temoporfin, Foscan(®)) were compared with that of mTHPC over a range of drug-light intervals using acute tumour necrosis and skeletal muscles swelling in a mous...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s101030050019
更新日期：1999-03-01 00:00:00
abstract：:Resistant non-segmental vitiligo is difficult to be treated. Ablative erbium-YAG (Er:YAG) laser has been used in the treatment of vitiligo, but the ablation of entire epidermis frustrated the compliance of patients. The purpose of this study is to investigate the effects of fractional Er:YAG laser followed by topical ...
journal_title：Lasers in medical science
pub_type： 临床试验,杂志文章
doi：10.1007/s10103-017-2282-y
更新日期：2017-09-01 00:00:00
abstract：:Reepithelialization and wound closure are the desired outcome for several ulcerative conditions. Such resolution reduces the possibility of wound contamination and maintenance of the injury and improves the reestablishment of tissue morphology and functions. Investigators are seeking adjuvant therapies that can accele...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2176-z
更新日期：2018-02-01 00:00:00
abstract：:In an in vitro study, the effect of light polarization on the efficiency of 5-aminolaevulinic acid (ALA) photodynamic therapy (PDT) of basal cell carcinoma (BCC) was investigated. Three states of light polarization (non-polarized, linearly polarized, and circularly polarized) were considered. Cells were exposed to gre...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2369-5
更新日期：2018-02-01 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：:The aim of the present study was to evaluate the success rate of failed implants re-implanted after surface treatment with CO2 laser. Despite the widespread use of dental implants, there are many incidents of failures. It is believed that lasers can be applied to decontaminate the implant surface without damaging the ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-016-1921-z
更新日期：2016-07-01 00:00:00
abstract：:Neurofibromatosis type 1 (NF-1) is an autosomal dominant disorder characterized by skin tumours derived from peripheral nerves. It is a clinically diagnosed disorder of a mainly cosmetic concern. There are different excision modalities for treatment of cutaneous neurofibromas; however, none is considered to be univers...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-007-0485-3
更新日期：2008-07-01 00:00:00
abstract：:To identify the best low level laser photobiomodulation application site at the same irradiation time to increase the viability of the skin flap in rats. Eighteen male rats (Rattus norvegicus: var. Albinus, Rodentia Mammalia) were randomly distributed into three groups (n = 6). Group I (GI) was submitted to simulated ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-018-2694-3
更新日期：2019-07-01 00:00:00
abstract：:Use of the CO(2) laser (λ = 10.6 μm, continuous wave, defocused) is an established procedure for the treatment of premalignant lesions. Through employment of the sp-mode as well as scanners, thermal laser effects can be reduced but, on the other hand, a lesser degree of destruction of dysplastic cells could lead to an...
journal_title：Lasers in medical science
pub_type： 临床试验,杂志文章
doi：10.1007/s10103-011-0910-5
更新日期：2012-01-01 00:00:00
abstract：:Non-invasive skin-tightening devices can induce thermal denaturation and skin shrinkage via externally applied radiofrequency emissions or high-frequency ultrasound. Therefore, the purpose of this study is to develop and test a method for measurement of skin reduction associated with application of such energy devices...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-018-2646-y
更新日期：2019-06-01 00:00:00
abstract：:The Achilles tendon has a high incidence of rupture, and the healing process leads to a disorganized extracellular matrix (ECM) with a high rate of injury recurrence. To evaluate the effects of different conditions of low-level laser (LLL) application on partially tenotomized tendons, adult male rats were divided into...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-012-1236-7
更新日期：2013-09-01 00:00:00
abstract：:The relative amounts of 5-aminolaevulinic acid (ALA)-induced hydrophobic and hydrophilic porphyrins produced in normal mouse tissue and solid Ehrlich ascites carcinoma in mice were investigated as a function of added glucose, light irradiation and restricted blood flow to the tumour. Protoporphyrin IX (PpIX) is the pr...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/BF02765103
更新日期：1997-10-01 00:00:00
abstract：:Nitrogen laser-induced fluorescence (LIF) and tungsten halogen lamp excited diffuse reflectance spectra were recorded in 350- to 700-nm range on a miniature fiber-optic spectrometer from in vitro premolar tooth during various stages of artificial erosion with 36% phosphoric acid. Both the LIF spectral intensity and th...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-007-0489-z
更新日期：2008-07-01 00:00:00
abstract：:The purpose of this article was to analyze the photobiomodulator role of low-level laser therapy (LLLT) on the skeletal muscle remodeling following cryoinjury in rats, focusing the types I and III collagen proteins. Laser phototherapy has been employed to stimulate repair in different tissues. However, its role in ske...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0951-9
更新日期：2011-11-01 00:00:00
abstract：:Bisphosphonate-related osteonecrosis of the jaw is a well-known potential side effect of long-term bisphosphonate therapy; the primary objective of the treatment should be to improve patient quality of life through pain and infection management, to prevent the development of new lesions, and to slow disease progressio...
journal_title：Lasers in medical science
pub_type： 杂志文章,评审
doi：10.1007/s10103-016-1929-4
更新日期：2016-08-01 00:00:00
abstract：:To evaluate the efficacy and safety of holmium laser enucleation of prostate (HoLEP) for treating urinary retention in patients with advanced prostate cancer. Thirty-eight cases of advanced prostate cancer with urinary retention were enrolled in this retrospective study. All the 38 patients were treated with CAB as a ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02913-2
更新日期：2020-08-01 00:00:00
abstract：:The objective of this study was to describe the dynamics of water heating carried out by continuous laser radiation with wavelengths 1.47, 1.55, and 1.94 μm with different types of fibers used for endovenous laser coagulation. The study was conducted in water using high-speed surveying of the heating process through t...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03184-y
更新日期：2020-11-07 00:00:00
abstract：:Since the introduction of laser in clinical practice, different wavelengths have been used for oral surgery on the basis of the different characteristics and affinities of each one. The aim of this study was a comparison of different laser wavelengths in relation to both thermal increase and "histological quality" in ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-012-1081-8
更新日期：2013-02-01 00:00:00
