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Finite element analysis of the effect of novel Lock Screw system preventing abutment screw loosening

Im ES, Kim JE, Kim JH, Park YB

PURPOSE: The purpose of this finite element analysis study is to introduce the novel Lock screw system and analyze its mechanical property to see if it can prevent abutment screw...
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Finite element analysis of long-term changes of the breast after augmentation mammoplasty: Implications for implant design

Myung Y, Lee JG, Cho M, Heo CY

The development of breast implant technology continues to evolve over time, but changes in breast shape after implantation have not been fully elucidated. Thus, we performed computerized finite element analysis...
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Comparative Finite Element Analysis of Lumbar Cortical Screws and Pedicle Screws in Transforaminal and Posterior Lumbar Interbody Fusion

Sin DA, Heo DH

OBJECTIVE: Lumbar cortical screw fixation (CSF), rather than pedicle screw fixation (PSF), has recently been attempted in lumbar interbody fusion. The purpose of our study was to evaluate the biomechanical...
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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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Critical evaluation of fracture strength testing for endodontically treated teeth: a finite element analysis study

Uzunoglu-Özyürek E, Küçükkaya Eren S, Eraslan O, Belli S

OBJECTIVES: The aim of this study was to investigate whether the diameter and direction of the plunger and simulation of the periodontal ligament (PDL) affected the stress distribution in endodontically...
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Three-dimentional finite element analysis of a mandibular premolar with reduced periodontal support under a non-axial load

Yang SM, Chung HJ

This study analyzed stress profiles of a mandibular premolar and its supporting periodontium under non-axial occlusal load as a function of the level of periodontal bone support using finite element...
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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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Displacement and stress distribution of the maxillofacial complex during maxillary protraction using palatal plates: A three-dimensional finite element analysis

Eom J, Bayome M, Park JH, Lim HJ, Kook YA, Han SH

OBJECTIVE: The purpose of this study was to analyze initial displacement and stress distribution of the maxillofacial complex during dentoskeletal maxillary protraction with various appliance designs placed on the palatal...
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Stress distribution in premolars restored with inlays or onlays: 3D finite element analysis

Yang H, Park C, Shin JH, Yun KD, Lim HP, Park SW, Chung H

PURPOSE: To analyze stress distribution in premolars restored with inlays or onlays using various materials. MATERIALS AND METHODS: Three-dimensional maxillary premolar models of abutments were designed to include the following: 1)...
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Three-dimensional optimization and sensitivity analysis of dental implant thread parameters using finite element analysis

Geramizadeh M, Katoozian , Amid R, Kadkhodazadeh M

OBJECTIVES: This study aimed to optimize the thread depth and pitch of a recently designed dental implant to provide uniform stress distribution by means of a response surface optimization method...
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Three-dimensional finite element analysis according to the insertion depth of an immediately loaded implant in the anterior maxilla

Park CW, Kim SH, Yeo IS, Yoon HI, Han JS

PURPOSE: The purpose of this study was to investigate the effects of the insertion depth of an immediately loaded implant on the stress distribution of the surrounding bone and the...
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Three-dimensional finite element analysis of the splinted implant prosthesis in a reconstructed mandible

Heo KH, Lim YJ, Kim MJ, Kwon HB

PURPOSE: The purpose of this study was to analyze the effects of the splinted implant prosthesis in a reconstructed mandible using three-dimensional finite element analysis. MATERIALS AND METHODS: Three-dimensional finite element...
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Evaluation of the effects of miniscrew incorporation in palatal expanders for young adults using finite element analysis

Seong EH, Choi SH, Kim HJ, Yu HS, Park YC, Lee KJ

OBJECTIVE: The aim of this study was to evaluate the stress distribution and displacement of various craniofacial structures after nonsurgical rapid palatal expansion (RPE) with conventional (C-RPE), bone-borne (B-RPE), and...
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Stress distribution of molars restored with minimal invasive and conventional technique: a 3-D finite element analysis

Yang S, Kim SM, Choi N, Kim JH, Yang SP, Yang H

PURPOSE: This study aimed to analyze stress distribution and maximum von Mises stress generated in intracoronal restorations and in tooth structures of mandibular molars with various types of cavity designs...
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Stress distribution of implants with external and internal connection design: a 3-D finite element analysis

Chung H, Yang SP, Park JH, Park C, Shin JH, Yang H

PURPOSE: This study aims to analyze the stress distribution of mandibular molar restoration supported by the implants with external hex and internal taper abutment connection design. MATERIALS AND METHODS: Models of...
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Effects of implant tilting and the loading direction on the displacement and micromotion of immediately loaded implants: an in vitro experiment and finite element analysis

Sugiura T, Yamamoto K, Horita S, Murakami K, Tsutsumi S, Kirita T

PURPOSE: The purpose of this study was to investigate the effects of implant tilting and the loading direction on the displacement and micromotion (relative displacement between the implant and bone)...
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Three-dimensional finite element analysis of platform switched implant

Moon SY, Lim YJ, Kim MJ, Kwon HB

PURPOSE: The purpose of this study was to analyze the influence of the platform switching concept on an implant system and peri-implant bone using three-dimensional finite element analysis. MATERIALS AND METHODS:...
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The Formation of Extragraft Bone Bridging after Anterior Cervical Discectomy and Fusion: A Finite Element Analysis

Kwon SW, Kim CH, Chung CK, Park TH, Woo SH, Lee SJ, Yang SH

OBJECTIVE: In addition to bone bridging inside a cage or graft (intragraft bone bridging, InGBB), extragraft bone bridging (ExGBB) is commonly observed after anterior cervical discectomy and fusion (ACDF) with...
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The effects of alveolar bone loss and miniscrew position on initial tooth displacement during intrusion of the maxillary anterior teeth: Finite element analysis

Cho SM, Choi SH, Sung SJ, Yu HS, Hwang CJ

OBJECTIVE: The aim of this study was to determine the optimal loading conditions for pure intrusion of the six maxillary anterior teeth with miniscrews according to alveolar bone loss. METHODS: A...
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