Abstract:
BACKGROUND AND OBJECTIVE:In a previous study, the possibility of removal of dog gingival melanin pigmentation with CO(2) laser therapy was reported. The present study was designed to investigate the effect of the CO(2) laser on human gingival pigmentation and evaluate the clinical outcome. STUDY DESIGN/MATERIALS AND METHODS:A CO(2) laser (output: 6-8 W, pulse duration: 0.2 seconds) was irradiated on the melanin pigmented gingival surface of 10 patients, aged 20-49 years. Follow-up clinical and histopathological evaluations were performed. RESULTS:The CO(2) laser was effective in removing melanin pigmentation in all patients. In the histopathological study, no pigmented-laden cells nor any inflammatory cell infiltration was observed following laser irradiation. No re-pigmentation was seen in any case in the first year. However, four of seven cases showed re-pigmentation at 24 months. The re-pigmentation was almost equal to the preoperative state. CONCLUSIONS:The CO(2) laser has proved to be another effective, safe, and easily applicable therapy for the removal of gingival melanin pigmentation.
journal_name
Lasers Surg Medjournal_title
Lasers in surgery and medicineauthors
Nakamura Y,Hossain M,Hirayama K,Matsumoto Kdoi
10.1002/(sici)1096-9101(1999)25:2<140::aid-lsm7>3.subject
Has Abstractpub_date
1999-01-01 00:00:00pages
140-7issue
2eissn
0196-8092issn
1096-9101pii
10.1002/(SICI)1096-9101(1999)25:2<140::AID-LSM7>3.journal_volume
25pub_type
杂志文章abstract:BACKGROUND AND OBJECTIVE:To further understand the precise process of the tumor cell degeneration after photodynamic therapy (PDT), laser hyperthermic therapy (LH), and combined treatments using an Nd:YAG laser. It is important to examine initial morphological alteration of tumor cells after these treatments. STUDY DE...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900160308
更新日期:1995-01-01 00:00:00
abstract:OBJECTIVES:Photodynamic therapy (PDT) is an effective cancer treatment that uses photosensitizers, light, and oxygen to destroy malignant cells. Porphyrins, and in particular the cationic derivatives, are the most investigated photosensitizers for PDT. In this context, it is important to study new methodologies to deve...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.22824
更新日期:2018-07-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Intralipid (IP) is a scatterer extensively used in the building of phantoms for Biomedical Optics measurements. Recently, deviations from the linearity have been shown for the concentration scaling law of the scattering coefficient of IP water solutions at visible wavelengths. In this work thi...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.20157
更新日期:2005-06-01 00:00:00
abstract::Percutaneous endoscopic approaches to cholelithiasis would be facilitated by methods for welding gallbladder tissues. We evaluated the bursting pressure and histologic appearance of canine gallbladder tissue welded with a thulium-holmium-chromium:YAG (THC:YAG) laser producing a 2.15 microns pulsed output. The tissue a...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900090211
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Current fat-graft animal models require weeks, to months, for results. The purpose of this study was to develop a model for the rapid identification of adipocyte protectants, using apoptosis-specific fluorescence. The goal of our model was to predict long-term fat graft survival within a 10-da...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.20874
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:In recent years, clinical low-intensity laser therapy practice has used pulsed radiation, mainly from semiconductor lasers. Experimental works devoted to the study of relationships between biological and clinical effects and parameters of pulsed radiation are practically absent. STUDY DESIGN/M...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/(sici)1096-9101(1997)21:5<485::aid-lsm11>3
更新日期:1997-01-01 00:00:00
abstract::The advantages of the laser have been extolled in the literature but, in contrast, there is a paucity of information on the hazards involved in its surgical use. Recognition and prevention of risks is a mandatory requirement. The experience by encounter is described with counsel as to the prerequisite of taking precau...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900040207
更新日期:1984-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:To demonstrate that high color fidelity light-emitting diode (LED) sources are preferred by dermatologists for the evaluation of patients during standard-of-care, outpatient visits when compared to low color fidelity LED sources similar to fluorescent lighting. STUDY DESIGN/MATERIALS AND METH...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.23352
更新日期:2020-11-08 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate the effect of relatively novel approach of application of polychromatic light waves on flap survival of experimental musculocutaneous flap model and to investigate efficacy of this modality as a delay procedure to increase vascularization of zone 4 of transverse rectus ab...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.23063
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The aim of the in vitro study was to examine the clinical efficacy of semiconductor laser periodontal pocket irradiation as an adjunct to conventional scaling and root planing. MATERIALS AND METHODS:Twenty-two healthy patients with a need of periodontal treatment (15 women, 7 men, mean age 45...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.20252
更新日期:2005-12-01 00:00:00
abstract:BACKGROUND:Lymphangioma circumscriptum (LC) is a rare, benign, vascular malformation of dilated superficial lymphatic channels. Treatment is typically undertaken for cosmetic reasons or complications such as fluid drainage, pain, and infection risk that can negatively impact quality of life. Management of LC remains ch...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.22379
更新日期:2015-09-01 00:00:00
abstract::Heat-induced oxygen tension changes in RIF-1 tumors in C3H male mice were analyzed in an attempt to correlate these changes with tumor response to Nd:YAG laser heating. A low power, microprocessor-controlled Nd:YAG laser was used to superficially heat 250-300 mm3 tumors to base temperatures of 44, 45, 46, or 48 degree...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900130308
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVES:While controlled thermal changes in subcutaneous tissue have been used to trigger apoptosis of fat cells and have been proven clinically efficacious, another mechanism of electromagnetic stress suggests that fat apoptosis could be achieved by a non-thermal manner as well. This animal model study investigates...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.23039
更新日期:2019-01-01 00:00:00
abstract::The photocoagulating properties of the water-jet-cooled Nd:YAG laser (1,064 nm) have been studied in a rat tumor model. A colon carcinoma CC531 was implanted in the liver; 20 days after inoculation, laser therapy was performed with 600 J, 850 J, 1,200 J, 1,700 J, or 2,400 J at a power setting of either 10 or 20 W. Liv...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900110510
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:In this study, methylene blue-mediated photodynamic therapy (MB-PDT) was used as a possible alternative method for the treatment of oral lichen planus (OLP). STUDY DESIGN/MATERIALS AND METHODS:Thirteen patients with 26 OLP lesions were enrolled in this study. Patients were instructed to gargl...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.20278
更新日期:2006-01-01 00:00:00
abstract::There are a host of fiber-optic delivery devices available for use with the Er:YAG, HF, CO, and CO2 lasers at 2.9, 2.8, 5.3, and 10.6 microns wavelengths, respectively. While many of these fibers are not as convenient to use as conventional silica fibers, they offer the ability to deliver infrared laser energy for a w...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章,评审
doi:10.1002/lsm.1900130513
更新日期:1993-01-01 00:00:00
abstract::It has been postulated that low energy (soft) lasers can enhance wound healing. Considering the importance of cell locomotion in the wound healing process, we have studied the effects of a helium/neon laser upon the locomotory behaviour of a population of fibroblasts migrating within a three-dimensional hydrated colla...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900120617
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The conventional pulsed-dye laser (wavelength 585 nm, pulse duration 0.5 milliseconds) is seen as the standard treatment for port wine stains (PWS). Using the pulsed-dye laser at wavelengths of 590, 595, and 600 nm and at varying pulse durations of 1.5-40 milliseconds is one of the newest deve...
journal_title:Lasers in surgery and medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/lsm.20003
更新日期:2004-01-01 00:00:00
abstract:OBJECTIVE:5-Aminolevulinic acid based photodynamic therapy (5-ALA-PDT) has revealed promising results in the treatment of inflammatory joint diseases due to the sensitivity of inflamed synovial tissue. For 5-ALA-PDT to be safe and beneficial for intra-articular applications, resistance of chondrocytes is essential to p...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.20625
更新日期:2008-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:The use of pulsed dye laser (PDL) and fractional CO2 (FX CO2 ) laser therapy to treat and/or prevent scarring following burn injury is becoming more widespread with a number of studies reporting reduction in scar erythema and pruritus following treatment with lasers. While the majority of studi...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.22702
更新日期:2018-01-01 00:00:00
abstract::Our experiments on transmitting high-power excimer laser pulses through optical fibers and our investigations on excimer laser ablation of hard tissue show the feasibility of using the excimer laser as an additional instrument in general and accident surgery involving minimal invasive surgery. By combining XeCl-excime...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900110612
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Although topical corticosteroids are still the first-line option for vitiligo, its efficacy is still unsatisfactory for stable vitiligo. A few studies have focused on laser-assisted drug delivery (LADD) but were limited by their sample deficiency and analyses of the influencing factors. To det...
journal_title:Lasers in surgery and medicine
pub_type:
doi:10.1002/lsm.23198
更新日期:2020-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Enzyme histochemical stains of frozen sections have been used by investigators to assess thermal damage. The assessment of thermal damage to cells in lipid-rich tissues such as subcutaneous tissue and sebaceous glands can be difficult due to the quality of frozen sections of such tissues. The p...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.20450
更新日期:2007-02-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Objectively measure and compare postoperative collagen thermal damage and subsequent new collagen synthesis after cutaneous laser resurfacing using two carbon dioxide laser systems. STUDY DESIGN/MATERIALS AND METHODS:We created 240 resurfacing wounds on eight piglets with scanned and short-pul...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/(sici)1096-9101(1998)23:2<66::aid-lsm3>3.0
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Local recurrence after surgical resection for breast cancer is a significant problem and is often not controlled by radiation or chemotherapy treatments. Local recurrence is thought to be, at least in part, due to residual disease, and/or due to the contamination of the surgical field during re...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900170406
更新日期:1995-01-01 00:00:00
abstract::New instruments to facilitate laser operations are presented. These devices are based on the Kocher bronchocoele sound and are useful as dissecting tools and optical backstops to prevent iatrogenic injury. ...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900100613
更新日期:1990-01-01 00:00:00
abstract::The acute or emergency treatment of traumatic tattoos has been based on the principles of immediate and thorough removal of all particles. The delayed treatment of traumatic tattoos has classically been with overgrafting or dermabrasion. We developed an animal model for traumatic tattoos. Two levels of wounds were mad...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900100208
更新日期:1990-01-01 00:00:00
abstract::partial ciliary processes argon laser photocoagulation (PCLP) in the management of glaucoma has been the subject of a carefully conducted, prospective 5+-year clinical trial in 22 eyes of 20 patients. The mean intraocular pressure (IOP) +/- SD was significantly lower (15.5 +/- 3.6 mm Hg) than before the procedure (29....
journal_title:Lasers in surgery and medicine
pub_type: 临床试验,杂志文章
doi:10.1002/lsm.1900010109
更新日期:1980-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:A prospective, double-blind, randomized, and controlled trial was conducted in patients with knee osteoarthritis (OA) to evaluate the efficacy of infrared low-power Gallium-Arsenide (Ga-As) laser therapy (LPLT) and compared two different laser therapy regimes. STUDY DESIGN/MATERIALS AND METHO...
journal_title:Lasers in surgery and medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/lsm.10236
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Phototherapy plus dynamic exercise can enhance physical performance and improve health. The aim of our study was to evaluate the effect of low-level laser therapy (LLLT) associated with high intensity resistance training (HIT) on cardiac autonomic and muscle metabolic responses in rats. STUDY ...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.22298
更新日期:2014-12-01 00:00:00