Abstract:
:Lasers have many favorable features as a light source owing to their monochromaticity and coherence. This study examined the mechanical properties of composite resins that were light-cured using a diode-pumped solid state (DPSS) laser. Eight composite resins were light-cured using four different light sources (one quartz-tungsten-halogen (QTH), two light-emitting diodes (LEDs), and one DPSS laser with a wavelength of 473 nm). The light intensity of the DPSS laser and remaining light-curing units were approximately 500 and 900 mW/cm(2), respectively. The microhardness, flexural properties, and compressive properties were evaluated using the Vickers hardness test, three-point bending test, and compression test, respectively. In most cases, the microhardness, flexural properties, and compressive properties of the specimens light-cured using the DPSS laser were similar to those obtained using the other light-curing units. Within the limits of the study, the microhardness, flexural modulus, and compressive strength were linearly correlated with the filler content (in weight percent). The flexural modulus and compressive modulus were also linearly correlated with the microhardness. Even with a much lower light intensity, the DPSS laser with a wavelength of 473 nm can polymerize composite resins and give comparable mechanical properties to those obtained using the other light-curing units.
journal_name
Lasers Med Scijournal_title
Lasers in medical scienceauthors
Baek DM,Park JK,Son SA,Ko CC,Garcia-Godoy F,Kim HI,Kwon YHdoi
10.1007/s10103-012-1117-0subject
Has Abstractpub_date
2013-02-01 00:00:00pages
597-604issue
2eissn
0268-8921issn
1435-604Xjournal_volume
28pub_type
杂志文章abstract::This study compares sensitivity reduction after dental restoration with and without prior diode laser (DL) irradiation for cervical dentine hypersensitivity (CDH) from non-carious cervical lesions (NCCLs) unresponsive to desensitizing agents. Eighty-eight teeth of 28 subjects (21 females; age 23-64 years), with CDH fr...
journal_title:Lasers in medical science
pub_type: 临床试验,杂志文章
doi:10.1007/s10103-016-2087-4
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 two-dimensional model including the effects of dynamic changes in the physical properties on tissue temperature and damage was developed to describe laser energy transport, heat transfer, and damage accumulation during laser-induced interstitial thermotherapy (LITT). The Monte Carlo method was used to simulate photo...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-004-0324-8
更新日期:2005-01-01 00:00:00
abstract::The Nd: YAG laser family offers wide possibilities for surgery applications in medicine. The radiation at 213 nm provides similar tissue effects as compared to 193 nm excimer lasers, but offers considerable practical advantages in the operating room. As such, it is of considerable interest to create single-mode Q-swit...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-005-0328-z
更新日期:2005-01-01 00:00:00
abstract::Both high-intensity ultraviolet and narrowband ultraviolet B (NB-UVB) are important therapeutic options for vitiligo management, but high-intensity ultraviolet is more effective than NB-UVB. However, the underlying mechanisms have not been well investigated. Herein, we compare the effects of high-intensity ultraviolet...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-014-1568-6
更新日期:2014-09-01 00:00:00
abstract::The aim of this in vitro study was to determine the effect of different remineralization agents and laser on caries resistance of primary enamel. In the study, 150 sound primary molars were used. The initial microhardness values were measured and the teeth were randomly assigned to ten treatment groups (n = 15): no tr...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-018-2667-6
更新日期:2019-07-01 00:00:00
abstract::For chronic rhinitis that is refractory to medical therapy, surgical intervention such as endoscopic vidian neurectomy (VN) can be used to control the intractable symptoms. Lasers can contribute to minimizing the invasiveness of ENT surgery. The aim of this retrospective study is to compare in patients who underwent d...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-017-2330-7
更新日期:2017-12-01 00:00:00
abstract::In this study, shear bond strength (SBS) of metal orthodontic brackets to porcelain following conditioning by Er:YAG (erbium-doped yttrium aluminum garnet) and Nd:YAG (neodymium-doped yttrium aluminum garnet) laser in comparison to conventional methods was evaluated. One hundred glazed porcelain discs with an upper ce...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-010-0878-6
更新日期:2012-03-01 00:00:00
abstract::To evaluate the effect of various media and Iridex MicroPulse P3 (MP3) probe angles on the power output from the Cyclo G6 Glaucoma Laser (G6) System. A laser power meter was used to measure the power output (milliwatts, mW) of the Cyclo G6 System. Each of the ten trials consisted of measurements in six different media...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-020-03089-w
更新日期:2020-07-18 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::This retrospective case-control study aimed to compare 30 versus 40 W power of CO2 laser for the therapy of genitourinary syndrome of menopause (GSM). Postmenopausal women with severe intensity of dyspareunia and dryness were eligible to be included in this study. Primary outcomes were dyspareunia and dryness. Seconda...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-017-2293-8
更新日期:2017-11-01 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 purpose of this study is to evaluate microtensile bond strength (μTBS) of an etch-and-rinse adhesive to enamel and dentin after treatment with Er:YAG laser using different pulse durations. Extracted human molars were flattened to obtain enamel or dentin surfaces. The enamel specimens (E) were divided into nine gro...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-010-0830-9
更新日期:2012-01-01 00:00:00
abstract::This study analyzed the effects of photobiomodulation (PBM) with low-level laser therapy on nociceptive behavior and neuronal activity in the trigeminal nucleus after experimental unilateral temporomandibular joint (TMJ) disc injury. The animals were divided into 4 groups (n = 10 each): group 1, surgical injury of the...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-019-02842-0
更新日期:2020-03-01 00:00:00
abstract::The authors tested the diagnostic potential of the portable autofluorescence optical system that was developed in the preoperative evaluation of resection margins, and thus of the resection line safety in patients with low-positioned colorectal carcinoma. A total of 217 spectral measurements of the fluorescence proper...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-010-0847-0
更新日期:2011-05-01 00:00:00
abstract::Recent studies with phototherapy have shown positive results in enhancement of performance and improvement of recovery when applied before exercise. However, several factors still remain unknown such as therapeutic windows, optimal treatment parameters, and effects of combination of different light sources (laser and ...
journal_title:Lasers in medical science
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10103-014-1611-7
更新日期:2014-11-01 00:00:00
abstract::Epithelial cells play an important role in reparative events. Therefore, therapies that can stimulate the proliferation and metabolism of these cells could accelerate the healing process. To evaluate the effects of low-level laser therapy (LLLT), human keratinocytes were irradiated with an InGaAsP diode laser prototyp...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-012-1057-8
更新日期:2013-02-01 00:00:00
abstract::It is well known that laser-assisted hatching (LAH) is the most popular and ideal embryo hatching technology, but the relevance to pregnancy outcomes of cryopreserved-thawed embryo transfer (ET) is controversial. The purpose of this meta-analysis was to evaluate the effects of LAH on pregnancy outcomes of cryopreserve...
journal_title:Lasers in medical science
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s10103-017-2372-x
更新日期:2018-04-01 00:00:00
abstract::Low-energy laser irradiation (Ga-Al-As semiconductor laser, output 50 mW) was applied to rat osteoclast precursor cells for 1, 3, 6, or 10 min at 24-h intervals during the culture period. The number of tartrate-resistant acid phosphatase positive multinucleate cells was increased by approximately 1.3-fold in the 3- an...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-005-0368-4
更新日期:2006-04-01 00:00:00
abstract::Oral mucositis (OM) and radiodermatitis (RD) are serious side effects of radiotherapy (RT), often leading to its suspension, need for analgesics, and enteral/parenteral nutrition. Laser therapy is becoming a recommended treatment option. This prospective study aimed at demonstrating the beneficial effect of class IV l...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-015-1857-8
更新日期:2016-04-01 00:00:00
abstract::Primary hyperparathyroidism (HPT) in 80% of patients is due to a solitary parathyroid adenoma, while in 20% multigland pathology exists, usually hyperplasia [Scott-Coombes, Surgery, 21(12):309-312, 2003]. Despite recent advances in minimally invasive parathyroidectomy, better preoperative localisation techniques and i...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-006-0397-7
更新日期:2006-12-01 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::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::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::Third-degree burn wounds are considered severe injuries because they destroy all the skin layers and may affect subcutaneous tissues, fasciae, muscles, and bones. To favor the healing process of the injured tissues, it is very useful to diminish the occurrence of the inflammatory process. The present study was aimed a...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-012-1213-1
更新日期:2013-07-01 00:00:00
abstract::For better evaluation of the efficacy of low-level laser therapy in treating painful diabetic neuropathy and in protecting nerve fiber damage, we conducted a study with type 1 diabetic rats induced by streptozotocin. It is well known that diabetic peripheral neuropathy is the leading cause of pain in those individuals...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-016-2140-3
更新日期:2017-04-01 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::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::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 im...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-010-0831-8
更新日期:2011-01-01 00:00:00