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The Effect of an Optical Clearing Agent on Tissue Prior to 1064-nm Laser Therapy

Youn JI

Background and Objectives Although lasers have been widely applied in tissue treatment, the light penetration depth in tissues is limited by the tissue turbidity and affected by its absorption and scattering...
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Effect of archwire stiffness and friction on maxillary posterior segment displacement during anterior segment retraction: A three-dimensional finite element analysis

Park CS, Yu HS, Cha JY, Mo SS, Lee KJ

OBJECTIVE: Sliding mechanics using orthodontic miniscrews is widely used to stabilize the anchorage during extraction space closure. However, previous studies have reported that both posterior segment displacement and anterior segment...
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Finite element analysis of cornea deformation and curvature change during the keratoplasty suturing process

Baek JW, Park SJ

Keratoplasty, which is cornea transplant surgery, is one of the treatment methods for patients with turbidity or keratitis. Recently, keratoplasty using a surgical robot was studied to increase precision. In...
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Influence of changing various parameters in miniscrew-assisted rapid palatal expansion: A three-dimensional finite element analysis

Yoon S, Lee DY, Jung SK

OBJECTIVE: This study aimed to analyze the effect of changing various parameters of the bone-borne rapid palatal expander (RPE) using the finite element method (FEM). METHODS: In eight experimental groups, we...
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Prediction of optimal bending angles of a running loop to achieve bodily protraction of a molar using the finite element method

Ryu WK, Park JH, Tai K, Kojima Y, Lee Y, Chae JM

OBJECTIVE: The purpose of this study was to predict the optimal bending angles of a running loop for bodily protraction of the mandibular first molars and to clarify the mechanics...
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A Biomechanical Comparison of Intralaminar C7 Screw Constructs with and without Offset Connector Used for C6-7 Cervical Spine Immobilization : A Finite Element Study

Qasim M, Hong JT, Natarajan , An HS

OBJECTIVE: The offset connector can allow medial and lateral variability and facilitate intralaminar screw incorporation into the construct. The aim of this study was to compare the biomechanical characteristics of...
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Three-dimensional finite element analysis of the deformation of the human mandible: a preliminary study from the perspective of orthodontic mini-implant stability

Baek SH, Cha HS, Cha JY, Moon YS, Sung SJ

OBJECTIVE: The aims of this study were to investigate mandibular deformation under clenching and to estimate its effect on the stability of orthodontic mini-implants (OMI). METHODS: Three finite element models were...
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The Effect of Tibial Posterior Slope on Contact Force and Ligaments Stresses in Posterior-Stabilized Total Knee Arthroplasty-Explicit Finite Element Analysis

Lee HY, Kim SJ, Kang KT, Kim SH, Park KK

PURPOSE: The purpose of this study is to evaluate the effect of change in tibial posterior slope on contact force and ligament stress using finite element analysis. MATERIALS AND METHODS: A...
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A FEM study on stress distribution of tooth-supported and implant-supported overdentures retained by telescopic crowns

Paek JH, Lee CG, Kim TH, Kim MJ, Kim HS, Kwon KR, Woo YH

  • KMID: 2408197
  • J Korean Acad Prosthodont.
  • 2012 Jan;50(1):10-20.
PURPOSE: The purpose of this study was to investigate the stress distribution in mandibular implant-supported overdentures and tooth-supported overdentures with telescopic crowns. MATERIALS AND METHODS: The assumption of this study was...
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Analysis of thermal changes in bone by various insertion torques with different implant designs

Kim MH, Yeo IS, Kim SH, Han JS, Lee JB, Yang JH

PURPOSE: This study aims at investigating the influence of various insertion torques on thermal changes of bone. A proper insertion torque is derived based on the thermal analysis with two...
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Influence of microthread design on marginal cortical bone strain developement: A finite element analysis

Chun SG, Cho JH, Jo KH

PURPOSE: The present study was aimed to evaluate the level of cortical bone strain during the placement of an implant. The primary concern was to investigate if the extent of...
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Finite element analysis of peri-implant bone stress influenced by cervical module configuration of endosseous implant

Chung JM, Jo KH, Lee CH, Yu W, Lee KB

STATEMENT OF PROBLEM: Crestal bone loss, a common problem associated with dental implant, has been attributed to excessive bone stresses. Design of implant's transgingival (TG) part may affect the crestal...
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Cervical design effect of dental implant on stress distribution in crestal cortical bone studied by finite element analysis

Kim KT, Jo KH, Lee CH, Yu W, Lee KB

STATEMENT OF PROBLEM: High stress concentration on the crestal cortical bone has been regraded as a major etiologic factor jeopardizing long term stability of endosseous implants. PURPOSE: To investigate if the...
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The Verification of Computer Simulation of Nitinol Wire Stent Using Finite Element Analysis

Kim JY, Jung WG, Jeon DM, Shin IG, Kim HK, Shin DO, Kim SH, Suh TS

  • KMID: 2038087
  • Korean J Med Phys.
  • 2009 Sep;20(3):139-144.
Recently, the mathematical analysis of stent simulation has been improved, with the help of development of various tool which measure mechanical property and location of stent in artery. The most...
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A Study on Fatigue Characteristic of Stent Using Finite Element Analysis

Kim HK, Shin IG, Kim DG, Kim SH, Lee JH, Ki BY, Suh TS, Kim SH

  • KMID: 2038084
  • Korean J Med Phys.
  • 2009 Sep;20(3):119-124.
Stents are frequently used throughout the human body. They keep pathways open in vascular or nonvascular duct for a long time. Therefore its stability is very important factor. In recent...
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The effects of dentin bonding agent thickness on stress distribution of composite-tooth interface : Finite element method

Park SI, Kim Y, Roh BD

The aim of this study was to examine that thick dentin bonding agent application or low modulus composite restoration could reduce stresses on dentin bonding agent layer. A mandibular first premolar...
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Finite element analysis of cortical bone strain induced by self-drilling placement of orthodontic microimplant

Park JS, Yu W, Kyung HM, Kwon OW

OBJECTIVE: The aim of this study was to evaluate the strain induced in the cortical bone surrounding an orthodontic microimplant during insertion in a self-drilling manner. METHODS: A 3D finite...
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Effect of prosthetic designs and alveolar bone conditions on stress distribution in fixed partial dentures with pier abutments

Cho W, Kim CS, Jeon YC, Jeong CM

  • KMID: 2321765
  • J Korean Acad Prosthodont.
  • 2009 Jul;47(3):328-334.
STATEMENT OF PROBLEM: Pier abutments act as a Class I fulcrum lever system when the teeth are incorporated in a fixed partial denture with rigid connectors. Therefore non-rigid connector incorporated...
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Finite Element Analysis of Reconstruction of Mandibular Symphysis Defects Using Reconstruction Plates

Oh JH, Han JS, Min JH, Mun SJ, Lee BS

  • KMID: 1485183
  • J Korean Assoc Maxillofac Plast Reconstr Surg.
  • 2008 Nov;30(6):513-517.
PURPOSE: This study aimed to evaluate distribution and maximal value of mechanical stresses on the reconstruction plate, bridging mandibular symphysis defect, and to optimize the most appropriate locations of the...
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Cortical bone strain during the placement of orthodontic microimplant studied by 3D finite element analysis

Nam O, Yu W, Kyung HM

OBJECTIVE: The aim of this study was to evaluate the strain induced in the cortical bone surrounding an orthodontic microimplant during insertion. METHODS: A 3D finite element method was used...
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