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A Case of Hypertrophic Scars After Therapy with CO2 Laser for Treatment of Multiple Cutaneous Neurofibromas

Choe HC, Cho SH, Lee JD

  • KMID: 2303010
  • Korean J Dermatol.
  • 2003 May;41(5):651-653.
Multiple cutaneous neurofibromas are the most common skin manifestation of Von Recklinghausen neurofibromatosis(NF-1). CO2 laser surgery is a treatment modality for multiple cutaneous neurofibromas and a simple procedure that quickly...
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Two Cases of Tufted Hair Folliculitis

Kim MY, Choe HC, Park HJ, Lee JY, Cho BK

Tufted hair follliculitis is a localized, inflammatory and exudative disease of the scalp characterized by a tufted appearance of the scalp hairs emerging from single follicular openings, and may result...
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Four Cases of Cutaneous Complications after Artificial Hair Implantation

Choe HC, Choi HJ, Park YM, Kim HO, Kim CW, Jang IG

  • KMID: 2038703
  • Korean J Dermatol.
  • 2002 Dec;40(12):1594-1597.
The implantation of synthetic fibers into the human scalp to simulate natural hair has been shown to cause severe complications and be a possible danger to human health. The complications...
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A Case of Cervical Accessory Tragus

Choe HC, Bae EY, Lee JD, Cho SH

  • KMID: 2086725
  • Korean J Dermatol.
  • 2003 Sep;41(9):1241-1244.
Accessory tragus is an uncommon congenital malformation of the external ear. It is derived from the dorsal part of the first branchial arch. Usually it appears as a small skin-colored...
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A Case of Henoch-Schonlein Purpura Complicated by Hemorrhagic Ascites and Multiple Upper Gastrointestinal Bleeding

Choe HC, Kim JE, Lee JD, Cho SH

  • KMID: 2038632
  • Korean J Dermatol.
  • 2003 Aug;41(8):1085-1087.
Henoch-Schonlein purpura is a common form of vasculitis primarily involving the skin, the gastrointestinal tract, the joints, the kidneys, and the nervous system. During the course of Henoch-Schonlein purpura diverse...
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Corrosion Characteristics Between Implant Fixture And Abutment Screw

Kee SJ, Kweon HS, Choe HC

  • KMID: 2045085
  • J Korean Acad Prosthodont.
  • 2000 Feb;38(1):85-97.
The purpose of this study was to compare the corrosion characteristics between implant fixture and two types of abutment screw; gold screw, titanium screw. The anodic polarization behavior, the galvanic...
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Effect of TiN coating of abutment screw on detorque force

Kim HJ, Choe HC, Chung CH

  • KMID: 2195655
  • J Korean Acad Prosthodont.
  • 2007 Jun;45(3):329-338.
PURPOSE: The aim of this study is to evaluate the effect of TiN coating of abutment screw on the unscrewing torque. MATERIAL AND METHODS: Titanium and Gold-Tite abutment screws were classified...
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Corrosion Phenomena Of Magnetic Attachment Used In Oral Environment

Kwak JH, Chung CH, Choe HC

  • KMID: 1959482
  • J Korean Acad Prosthodont.
  • 2002 Oct;40(5):470-483.
The purpose of this study was to investigate further the mechanics of failure of magnets used for denture retention. Dyna magnets were retrived from denture that had failed after 34...
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A Case of Piebaldism Treated by Combination Therapy with Suction Blister Epidermal Graft and the Alexandrite Laser

Choe HC, Kim MY, Park HJ, Byun DG, Park CJ

  • KMID: 2303061
  • Korean J Dermatol.
  • 2002 Nov;40(11):1389-1392.
Piebaldism is a rare, autosomal dominant inherited disorder, characterized by inborn hypopigmented skin and hair. It is characterized by stable leukoderma with white forelock and vitiligo like amelanotic macules usually...
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Plasma electrolytic oxidized surface of (Mg/Si)-hydroxyapatite coated Ti-29Nb-xHf alloys for dental implant

Park SY, Choe HC

In this study, in order to form a micropore oxide film containing (Mg/Si)-hydroxyapatite on the surface of a Ti-29Nb-xHf alloy, pores were formed on the surface of the alloy by...
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Clinicopathologic Study of 8 Patients with Plasma Cell Cheilitis

Choe HC, Park HJ, Oh ST, Park CJ, Byun DG, Cho BK

  • KMID: 2303026
  • Korean J Dermatol.
  • 2003 Feb;41(2):174-178.
BACKGROUND: Plasma cell cheilitis is an idiopathic, benign, inflammatory mucosal condition characterized by a dense plasma cell infiltrate in the mucosa. OBJECTIVE: The aim of this study was to examine...
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Prediction of Infarction in Acute Cerebral Ischemic Stroke by Using Perfusion MR Imaging and 99mTc-HMPAO SPECT

Choe HC, Lee SJ, Kim JH

  • KMID: 1595671
  • J Korean Soc Magn Reson Med.
  • 2002 Jun;6(1):55-63.
PURPOSE: We investigated the predictive values of relative CBV measured with perfusion MR imaging, and relative CBF measured with SPECT for tissue outcome in acute ischemic stroke. MATERIALS AND METHODS: Thirteen...
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Surface characteristics of plasma electrolytic oxidized Ti-mesh for dental use

Seo CS, Lee SR, Choe HC

In this study, surface characteristics of plasma electrolytic oxidized Ti-mesh for dental use were studied using various experimental instruments. The titanium mesh was used as a substrate for PEO. Using...
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Surface characteristics of nanotube-formed Ti-Ta-Ag-Pt alloys for dental implants

Kim SP, Choe HC

In this study, the surface characteristics of nanotube-formed Ti-Ta-Ag-Pt alloys for dental implants were studied using various experimental instruments. The Ti-xTa-2Ag-2Pt quaternary alloys were manufactured using a vacuum arc-melting furnace...
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Effects of surface coating on the screw release of dental implant screw

Koo CI, Chung CH, Choe HC

  • KMID: 2195775
  • J Korean Acad Prosthodont.
  • 2004 Apr;42(2):210-225.
STATEMENT OF PROBLEM: Implant screw loosening has been remained problem in restorative practices. Surface treatment of screw plays a role of preventing screw from loosening in implant screw mechanism. PURPOSE:...
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Improvement effects of electrochemical stability of magnetic materials for prosthetic dentistry

Kwack JH, Oh SH, Choe HC, Chung CH

  • KMID: 2000644
  • J Korean Acad Prosthodont.
  • 2006 Oct;44(5):628-641.
STATEMENT OF PROBLEM: Dental magnetic materials have been applied to removable prosthetic appliances, maxillofacial prostheses, obturator and dental implant but they still have some problems such as low corrosion resistance...
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Occupational Dermatoses in Foundry Workers at an Automobile Manufacturing Plant

Choe HC, Park YM, Lee JY, Kim HO, Kim CW

  • KMID: 2302997
  • Korean J Dermatol.
  • 2003 May;41(5):586-591.
BACKGROUND: Many employees working in cast iron foundry process at an automobile production plant suffered from similar dermatoses due to occupational exposure. But data on the occupational dermatoses in foundry...
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Effect of different grinding burs on the physical properties of zirconia

Lee KR, Choe HC, Heo YR, Lee JJ, Son MK

PURPOSE: Grinding with less stress on 3Y-TZP through proper selection of methods and instruments can lead to a long-term success of prosthesis. The purpose of this study was to compare...
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Effect of various intraoral repair systems on the shear bond strength of composite resin to zirconia

Han IH, Kang DW, Chung CH, Choe HC, Son MK

PURPOSE: This study compared the effect of three intraoral repair systems on the bond strength between composite resin and zirconia core. MATERIALS AND METHODS: Thirty zirconia specimens were divided into three...
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Comparison of fatigue fracture strength by fixture diameter of mini implants

Heo YR, Son MK, Kim HJ, Choe HC, Chung CH

PURPOSE: This study was conducted to obtain difference in fracture strength according to the diameter of one-body O-ring-type of mini implant fixture, to determine the resistance of mini implant to...
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