Journal ArticleDOI
Er:YAG laser ablation of tissue: effect of pulse duration and tissue type on thermal damage.
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TLDR
The thermal damage caused by 2.94‐μm Er:YAG laser ablation of skin, cornea, aorta, and bone was quantified and the zone of residual thermal damage produced by normal‐spiking‐mode pulses and Q‐switched pulses was compared.Abstract:
The thermal damage caused by 2.94-micron Er:YAG laser ablation of skin, cornea, aorta, and bone was quantified. The zone of residual thermal damage produced by normal-spiking-mode pulses (pulse duration approximately 200 microseconds) and Q-switched pulses (pulse duration approximately 90 ns) was compared. Normal-spiking-mode pulses typically leave 10-50 microns of collagen damage at the smooth wall of the incisions; however, at the highest fluences (approximately 80J/cm2) tears were produced in cornea and aorta and as much as 100 microns of damaged collagen is found at the incision edge. Q-switched pulses caused less thermal damage, typically 5-10 microns of damage in all tissues.read more
Citations
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Journal ArticleDOI
Mechanisms of pulsed laser ablation of biological tissues.
Alfred Vogel,Vasan Venugopalan +1 more
TL;DR: It was found that the structure and morphology also affect the energy transport among tissue constituents and therefore the ablation efficiency of biological tissues is increased.
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Confocal Imaging–Guided Laser Ablation of Basal Cell Carcinomas: An Ex Vivo Study
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Lasers in nonsurgical periodontal therapy.
TL;DR: This article reviews the current and potential applications of laser technology in nonsurgical therapy for the treatment of periodontal diseases and describes the advantages and disadvantages of various laser types.
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The current status of laser applications in dentistry
TL;DR: This paper summarizes key current and emerging applications for lasers in clinical practice, and predicts that specific laser technologies will become an essential component of contemporary dental practice over the next decade.
References
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Book
Harrison's Principles of Internal Medicine
TL;DR: In this article, Cardinal Manifestations of Disease Genetics and Disease Clinical Pharmacology Nutrition Infectious Disease Disorders Of The Cardiovascular System Disorders Of the Kidney And Urinary Tract Disorders Of Gastrointestinal System Disorders of The Immune System, Connective Tissue And Joints Hematology And Oncology Endocrinology And Metabolism Neurologic Disorders Environmental And Occupational Hazards.
Journal ArticleDOI
Optical Constants of Water in the 200-nm to 200-microm Wavelength Region.
George M. Hale,Marvin R. Querry +1 more
TL;DR: Extinction coefficients k(lambda) for water at 25 degrees C were determined through a broad spectral region by manually smoothing a point by point graph of k( lambda) vs wavelength lambda that was plotted for data obtained from a review of the scientific literature on the optical constants of water.
Book
A Textbook of Histology
William Bloom,Don Wayne Fawcett +1 more
TL;DR: The cell Epithelium Glands and secretion Blood Connective tissue proper Adipose tissue Cartilage Bone Bone marrow and blood cell formation Muscular tissue The nervous tissue, Jay B. Angevine
Journal ArticleDOI
Photorefractive keratectomy: A technique for laser refractive surgery
TL;DR: Conditions for one such procedure, photorefractive keratectomy, the direct reshaping of the cornea's central optical zone using tissue ablation with far ultraviolet radiation is described and a method of achieving better beam uniformity using beam integration by rotation is demonstrated.
Journal ArticleDOI
The multiplier method of Hestenes and Powell applied to convex programming
TL;DR: For nonlinear programming problems with equality constraints, Hestenes and Powell as discussed by the authors showed that the rate of convergence is linear if one starts with a sufficiently high penalty factor and sufficiently near to a local solution satisfying the usual second-order sufficient conditions for optimality.
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Er:YAG laser ablation of tissue: Measurement of ablation rates
Optical Constants of Water in the 200-nm to 200-microm Wavelength Region.
George M. Hale,Marvin R. Querry +1 more