エルビウムヤグレーザー、Er:YAGレーザー

WordNet

an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light (同)optical maser
the 25th letter of the Roman alphabet (同)y, wye
the 5th letter of the Roman alphabet (同)e

PrepTutorEJDIC

レーザー(強力な可視光線を発生させる;医療,通信,軍事用)
yttriumの化学記号
erbiumの化学記号

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/11/26 11:44:30」(JST)

wiki en

[Wiki en表示]

Play media

Video of minor surgery using an Er:YAG laser

Er:YAG lasers are solid-state lasers whose lasing medium is erbium-doped yttrium aluminium garnet (Er:Y₃Al₅O₁₂). Er:YAG lasers typically emit light with a wavelength of 2940 nm, which is infrared light. Unlike Nd:YAG lasers, the output of an Er:YAG laser is strongly absorbed by water. This fact limits the use of this laser in surgery, and in many other laser applications where water is present. Because of this limitation, Er:YAG lasers are far less common than their relatives such as Nd:YAG and Er:glass lasers.

Er:YAG lasers have been used for laser resurfacing of human skin.^[1] Example uses include treating acne scarring, deep rhytides, and melasma. In addition to being absorbed by water, the output of Er:YAG lasers is also absorbed by hydroxyapatite, which makes it a good laser for cutting bone as well as soft tissue. Bone surgery applications have been found in oral surgery, dentistry, implant dentistry, and otolaryngology.^[2]^[3]^[4]^[5] Er:YAG lasers are also safer for the removal of warts than are carbon dioxide lasers – because human papillomavirus (HPV) DNA is not found in the laser plume.^[6]Er:YAG lasers can be used in laser aided cataract surgery but owing to its water absorbable nature Nd:YAG is preferred more.^[7]

Erbium YAG dental lasers are effective for removing tooth decay atraumatically,^{[citation needed]} often without the need for local anesthetic to numb the tooth. Eliminating the vibration of the dental drill removes the risk of causing microfractures in the tooth. When used initially at low power settings, the laser energy has a sedative effect on the nerve, resulting in the ability to subsequently increase the power without creating the sensation of pain in the tooth. Additional benefits are disinfection of the surface of the dentin and enamel prior to bonding the filling, and etching the surface to increase surface area for improved bonding adhesion.

References

^ Teikemeier G, Goldberg DJ. "Skin resurfacing with the erbium:YAG laser". Dermatol. Surg. 1997;23:685–687.
^ Bornstein E. "Proper use of Er:YAG lasers and contact sapphire tips when cutting teeth and bone: scientific principles and clinical application". Dent. Today 2004;23:84, 86–89; quiz 89
^ Stubinger S, Nuss K, Landes C, von Rechenberg B, Sader R. "Harvesting of intraoral autogenous block grafts from the chin and ramus region: preliminary results with a variable square pulse Er:YAG laser". Lasers Surg Med 2008;40:312–318.
^ Schwarz F, Olivier W, Herten M, Sager M, Chaker A, Becker J. "Influence of implant bed preparation using an Er:YAG laser on the osseointegration of titanium implants: a histomorphometrical study in dogs". J. Oral Rehabil. 2007;34:273–281.
^ Lewandrowski KU, Lorente C, Schomacker KT, Flotte TJ, Wilkes JW, Deutsch TF. "Use of the Er:YAG laser for improved plating in maxillofacial surgery: comparison of bone healing in laser and drill osteotomies". Lasers Surg Med 1996;19:40–45.
^ Hughes, P.S.H.; Hughes, A.P. (March 1998). "Absence of human papillomavirus DNA in the plume of erbium:YAG laser-treated warts.". Journal of the American Academy of Dermatology 38 (3): 426–428. doi:10.1016/S0190-9622(98)70500-6. PMID 9520024.
^ Khurana, Aruj. Comprehensive Opthalmology (5th ed.).

External links

DOE about Er-YAG lasers 1994

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. 食道表在癌のマネージメント management of superficial esophageal cancer
2. 医療用レーザーの基本原則 basic principles of medical lasers
3. Bronchoscopic laser in the management of airway disease in adults
4. 全人工股関節置換術の合併症 complications of total hip arthroplasty
5. 無駄毛の除毛 removal of unwanted hair

English Journal

In vitro effects of Er,Cr:YSGG laser on dentine hypersensitivity. Dentine permeability and scanning electron microscopy analysis.

Aranha AC, de Paula Eduardo C.SourceDepartment of Restorative Dentistry/Special Laboratory of Lasers in Dentistry (LELO), School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227- Cidade Universitária, São Paulo, SP, 05508-900, Brazil, acca@usp.br.
Lasers in medical science.Lasers Med Sci.2012 Jul;27(4):827-34. Epub 2011 Sep 27.
The aim of the present study was to determine clinical parameters for the use of Er,Cr:YSGG laser in the treatment of dentine hypersensitivity. Two antagonist areas were determined as control and experimental areas for irradiation in 90 premolar roots. Each surface was conditioned with 24% EDTA (sub
PMID 21948399

Effects of Er:YAG and Er,Cr:YSGG lasers on dentine hypersensitivity. Short-term clinical evaluation.

Aranha AC, de Paula Eduardo C.SourceDepartment of Restorative Dentistry/Special Laboratory of Lasers in Dentistry (LELO), School of Dentistry, University of São Paulo, São Paulo, SP, Brazil, acca@usp.br.
Lasers in medical science.Lasers Med Sci.2012 Jul;27(4):813-8. Epub 2011 Sep 13.
Dentine hypersensitivity (DH) is a painful condition and is a clinical challenge due to the different treatment strategies available. High-intensity lasers have been studied as a possible option. The aim of this randomized, controlled, double-blind clinical study was to evaluate the effects of Er:YA
PMID 21912983

Japanese Journal

う蝕象牙質除去後の残存細菌にEr:YAGレーザーが与える影響

高橋雄介,吉岡靖介,朝日陽子,永山智崇,野杁由一郎,林美加子
日本歯科保存学雑誌 56(1), 1-8, 2013-02-28
… が存在しない.本研究では,う蝕除去後の残存象牙質に対するEr:YAGレーザーの照射が,残存細菌に与える影響について多面的評価を行った.材料と方法:う蝕治療が必要な患歯57歯を対象とした.う蝕検知液にて象牙質が淡いピンク色に染色されるまでう蝕象牙質を除去した後,レーザー照射群(28歯)ではEr:YAGレーザーをう蝕除去後の残存象牙質に照射し,同部の象牙質 …
NAID 110009596775