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Exploring the Safety and Efficacy of Organic Light-Emitting Diode in Skin Rejuvenation and Wound Healing

Lee YI, Lee SG, Ham S, Jung I, Suk J, Lee JH

Purpose: Photobiomodulation (PBM), encompassing low-energy laser treatment and light-emitting diode (LED) phototherapy, has demonstrated positive impacts on skin rejuvenation and wound healing. Organic light-emitting diodes (OLEDs) present a promising advancement...
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Preclinical Study of Dual-Wavelength Light-Emitting Diode Therapy in an Osteoarthritis Rat Model

Choi WW, Kim SH, Kim JH, Kim K, Kim SJ, Kim M, Kim HS, Lee H, Lee JY, Yong SY

Objective: To evaluate the efficacy of light-emitting diode (LED) and their dual-wavelengths as a treatment strategy for osteoarthritis. Methods: We induced osteoarthritis in male Sprague-Dawley rats by intra-articular injection of sodium...
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Efficacy and safety of a home-use multi-energy-based device for skin tightening: a preclinical study

Kwon TR, Moon DW, Kim J, Seong HM, Lee J, Lee WG, Lee YH, Han HS, Choi SY, Yoo KH

Background: Several studies have investigated the effects of simultaneous application of various energy sources and technologies, such as radio frequencies, light-emitting diodes, and microcurrents, as well as sonophoresis and iontophoresis....
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Effects of light-emitting diode therapy on hand stiffness and pain in non-steroidal anti-inflammatory drug-refractory patients with tenosynovitis

Choi AR, Kang JH, Park KJ, Lee HI, Kim TJ

Objective: The objective of this study was to evaluate the safety and efficacy of light-emitting diode therapy (LEDT) in the management of pain and stiffness in patients with refractory hand...
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Exploring the Effects of 630 nm Wavelength of Light-Emitting Diode Irradiation on the Proliferation and Migration Ability of Human Biceps Tendon Fibroblast Cells

Ryu JH, Park J, Kim JW, Shin YI, Lee SD, Oh Y, Kang SW

Background: Light-emitting diode (LED)-based photobiomodulation is used as an inducer of cell regeneration. Although numerous in vitro and in vivo orthopedic studies have been conducted, the ideal LED wavelength range...
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The effect of photodynamic therapy using Radachlorin on biofilm-forming multidrug-resistant bacteria

Seo CW, Kim YK, An JL, Kim JS, Kwon PS, Yu YB

Objectives: This study aimed to test the effect of photodynamic therapy (PDT) on the inhibition and removal of biofilms containing multidrug-resistant Acinetobacter baumannii. Methods: Using multidrug-resistant A. baumannii strains, an antibiotic...
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Inflammatory Effect of Light-Emitting Diodes Curing Light Irradiation on Raw264.7 Macrophage

Jeong MJ, Kil KS, Lee MH, Lee SY, Lee HJ, Lim DS, Jeong SJ

BACKGROUND: The light-emitting diode (LED) curing light used is presumed to be safe. However, the scientific basis for this is unclear, and the safety of LED curing light is still...
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Biological Effects of Light-Emitting Diodes Curing Unit on MDPC-23 Cells and Lipopolysaccharide Stimulated MDPC-23 Cells

Jeong MJ, Jeong SJ

BACKGROUND: Light-emitting diodes curing unit (LCU), which emit blue light, is used for polymerization of composite resins in many dentistry. Although the use of LCU for light-cured composite resin polymerization...
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Antimicrobial Effect on Streptococcus mutans in Photodynamic Therapy using Different Light Source

Kim J, Park H, Lee J, Seo H, Lee S

In a photodynamic therapy, the difference of antibacterial capacity was compared according to the type of source of light when the same quantity of energy is irradiated. After S. mutans is...
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Various Wavelengths of Light-Emitting Diode Light Regulate the Proliferation of Human Dermal Papilla Cells and Hair Follicles via Wnt/β-Catenin and the Extracellular Signal-Regulated Kinase Pathways

Joo HJ, Jeong KH, Kim JE, Kang H

BACKGROUND: The human dermal papilla cells (hDPCs) play an important role in regulation of hair cycling and growth. OBJECTIVE: The aim of this study was to investigate the effect of different...
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Light-emitting diode assessment of dentinal defects: the role of presumed extraction forces

Coelho MS, Card SJ, Tawil PZ

OBJECTIVES: The evaluation of iatrogenic dentinal defects in extracted teeth may be influenced by extraction forces and prolonged dry times. The purpose of this study was to compare the presence...
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Comparison of the bonding strengths of second- and third-generation light-emitting diode light-curing units

Lee HM, Kim SC, Kang KH, Chang NY

OBJECTIVE: With the introduction of third-generation light-emitting diodes (LEDs) in dental practice, it is necessary to compare their bracket-bonding effects, safety, and efficacy with those of the second-generation units. METHODS: In...
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Light-Emitting Diode-Assisted Narrow Band Imaging Video Endoscopy System in Head and Neck Cancer

Chang HJ, Wang WH, Chang YL, Jeng TR, Wu CT, Angot L, Lee CH, Wang PC

BACKGROUND/AIMS: To validate the effectiveness of a newly developed light-emitting diode (LED)-narrow band imaging (NBI) system for detecting early malignant tumors in the oral cavity. METHODS: Six men (mean age, 51.5...
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The Effects of 830 nm Light-Emitting Diode Therapy on Acute Herpes Zoster Ophthalmicus: A Pilot Study

Park KY, Han TY, Kim IS, Yeo IK, Kim BJ, Kim MN

BACKGROUND: Skin lesions and pain are the most distinctive features of herpes zoster. Light-emitting diode (LED) therapy is an effective treatment known for its wound-healing effects. OBJECTIVE: To determine whether the...
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The Measurement of Optimal Power Distance in LEDs

Park MK, Kim BJ, Kim MN, Mun SK, Hong HK, Choi YS, Jo YC

  • KMID: 2303576
  • Korean J Dermatol.
  • 2011 Feb;49(2):125-130.
BACKGROUND: The use of light technology in dermatology has grown rapidly over the last decade, with many developments in its use for the treatment of a wide variety of skin...
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Efficacy of Photodynamic Therapy with Methyl 5-aminolevulinic Acid and Red Light for Actinic Keratosis

Suh KS, Lee JW, Jeon YS, Kim ST

  • KMID: 2247809
  • Korean J Dermatol.
  • 2009 Jun;47(6):633-640.
BACKGROUND: Actinic keratosis (AK) is a pre-cancerous skin lesion that has the potential to progress to squamous cell carcinoma, which generally occurs on long-term sun exposed and cosmetically sensitive areas...
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Photopic ON- and OFF- Responses in Korean Normal Subjects

Park SE, Chang JH, Choi KS, Lee JH, Ohn YH

PURPOSE: To explore the effects of stimulus duration, stimulus intensity, and background luminance on the amplitude and waveform of the ON- and OFF- responses of photopic ERG and to provide...
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Topical Photodynamic Therapy for Treatment of Actinic Keratosis Using Light-Emitting Diode (LED) Device

Lee JS, Kim YJ, Kang HY, Lee ES, Oh CH, Kim YC

  • KMID: 2302641
  • Korean J Dermatol.
  • 2005 Apr;43(4):469-474.
BACKGROUND: Photodynamic therapy is a treatment modality which involves the sequential administration of a photosensitizer and light. Topical photodynamic therapy is being increasingly used for superficial non-melanoma skin cancers and...
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