Aesthetic Applications of Intense Pulsed Light

Fodor, Lucian; Ullmann, Yehuda; Elman, Monica

doi:10.1007/978-1-84996-456-2

Cited by 30 publications

(26 citation statements)

References 21 publications

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“…In other words, when blue light strikes the enamel surface, part of the light energy is reflected, part is converted into thermal energy, while the remaining portion passes through to the substrates below. 129 When blue light reaches the pulp tissue, photons are strongly absorbed by the blood chromophores to be partly converted into thermal energy, 130 resulting in a slower pulp temperature increase in vivo than that observed in vitro. Because of the constant blood flow, the warmed chromophores from absorbed photons are quickly replaced by other, cooler ones, so most of the heat generated in this tissue is dissipated.…”

Section: Effects Of Heat On Pulp Temperaturementioning

confidence: 99%

Light curing in dentistry and clinical implications: a literature review

et al. 2017

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Contemporary dentistry literally cannot be performed without use of resin-based restorative materials. With the success of bonding resin materials to tooth structures, an even wider scope of clinical applications has arisen for these lines of products. Understanding of the basic events occurring in any dental polymerization mechanism, regardless of the mode of activating the process, will allow clinicians to both better appreciate the tremendous improvements that have been made over the years, and will also provide valuable information on differences among strategies manufacturers use to optimize product performance, as well as factors under the control of the clinician, whereby they can influence the longterm outcome of their restorative procedures.

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Section: Effects Of Heat On Pulp Temperaturementioning

confidence: 99%

Light curing in dentistry and clinical implications: a literature review

et al. 2017

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“…In this connection, laser treatment had long been proven as an efficient way to accelerate plant germination, growth and development (Khalifa & Ghandoor, 2011;Perveen et al, 2011;Elsherief, 2013 andChen et al, 2014). Laser effect could be attributed to light electromagnetism and enhanced temperature and/ or due to photochemical effect on one or more key factors inside the cell (Fodor et al, 2011). Generally, laser treatments can be categorized into stimulatory and destructive.…”

Section: Photosynthetic Pigmentsmentioning

confidence: 99%

Short Term Effect of He-Ne Laser on Jatropha curcas Leaf Development and Amino Acid Biosynthesis: More Insights in Developmental Genetics of Oil Producing Plants

Khalifa

El-Ghandoor

2017

Egypt. J. Bot.

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JATROPHA curcas is a promising plant for biodiesel production. One tentative way to increase oil production is using non traditional physical methods such as laser. It had been shown before that laser could enhance plant growth and development as general. In this study, the DNA was extracted from leaves of plants grown from seeds collected from different regions in Egypt and tested using PCR to confirm their homogenousity. Then, the fully expanded leaves of Jatropha (6-week-old plants) were exposed to a dose equaling 300 mJ cm -2 Helium-Neon (He-Ne) laser. The effect of the administered dose on the photosynthetic pigment expression, chloroplast biogenesis and total amino acid biosynthesis were evaluated after 0, 1 and 24 h post irradiation. Laser treatment in this work did enhance all the previousely mentioned parametrs as will be discussed further in relation to the possibility of using laser as a novel protocol to enhance field crop plants as general.

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“…Apart from ultraviolet, visible light is known to have deleterious effects on biological systems. Although the impact of light on tissue is diverse (Fodor et al, ; Tuchin, ), visible light wavelengths seem to be closely associated with the incidence and extent of cellular damage, that is, the damage is more prominent in shorter wavelengths than in those that are longer (Takenaka et al, ; Oh et al, ; Kuse et al, ; Contin et al, ; Mignon et al, ; Rohringer et al, ). The harmful effects associated with shorter wavelengths include potential damage/alteration to the gene, deoxyribonucleic acid (DNA), or protein, which leads to lower cell viability, deterioration in cell quality, and acceleration of damage or death (Takenaka et al, ; Li et al, ; Contin et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…These unwanted consequences of light are also related to the etiology of many diseases, such as cellular aging, age‐related pathologies, and tumorigenesis (Setlow et al, ; Setlow and Woodhead, ). In living systems, these effects progress under photothermal, photochemical, and photomechanical mechanisms (Fodor et al, ; Tuchin, ; Contin et al, ) through the production of interrupting molecules or by directly interrupting the cell‐signaling pathway (Kuse et al, ; Kurutas, ).…”

Section: Introductionmentioning

confidence: 99%

Effect of blue light‐emitting diode light and antioxidant potential in a somatic cell

Bapary

Takano

Soma

et al. 2019

Cell Biology International

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Light is an indispensable part of routine laboratory work in which conventional light is generally used. Light-emitting diodes (LEDs) have come to replace conventional light, and thus could be a potent target in biomedical studies. Since blue light is a major component of visible light wavelength, in this study, using a somatic cell from the African green monkey kidney, we assessed the possible consequences of the blue spectra of LED light in future animal experiments and proposed a potent mitigation against light-induced damage. COS-7 cells were exposed to blue LED light (450 nm) and the growth and deoxyribonucleic acid (DNA) damage were assessed at different exposure times. A higher suppression in cell growth and viability was observed under a longer period of blue LED light exposure. The number of apoptotic cells increased as the light exposure time was prolonged. Reactive oxygen species (ROS) generation was also elevated in accordance to the extension of light exposure time. A comparison with dark-maintained cells revealed that the upregulation of ROS by blue LED light plays a significant role in causing cellular dysfunction in DNA in a time-dependent manner. In turn, antioxidant treatment has been shown to improve cell growth and viability under blue LED light conditions. This indicates that antioxidants have potential against blue LED light-induced somatic cell damage. It is expected that this study will contribute to the understanding of the basic mechanism of somatic cell death under visible light and maximize the beneficial use of LED light in future animal experiments.

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Aesthetic Applications of Intense Pulsed Light

Cited by 30 publications

References 21 publications

Light curing in dentistry and clinical implications: a literature review

Light curing in dentistry and clinical implications: a literature review

Short Term Effect of He-Ne Laser on Jatropha curcas Leaf Development and Amino Acid Biosynthesis: More Insights in Developmental Genetics of Oil Producing Plants

Effect of blue light‐emitting diode light and antioxidant potential in a somatic cell

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