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Validation of three-dimensional digital model superimpositions based on palatal structures in patients with maximum anterior tooth retraction following premolar extraction

Liu J, Koh KM, Choi SH, Kim JH, Cha JY

Objective: This study aimed to evaluate the superimposition accuracy of digital modes for measuring tooth movement in patients requiring anterior retraction after premolar extraction based on the proposed reference regions. Methods:...
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Customized maxillary incisor position relative to dentoskeletal and soft tissue patterns in Chinese women: A retrospective study

Zhou X, Zheng Y, Zhang Z, Zhang Z, Wu L, Liu J, Yang W, Wang J

Objective: To provide reliable prediction models based on dentoskeletal and soft tissue variables for customizing maxillary incisor positions and to optimize digitalized orthodontic treatment planning. Methods: This study included 244...
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Differences in dentoskeletal and soft tissue changes due to rapid maxillary expansion using a tooth-borne expander between adolescents and adults: A retrospective observational study

An JS, Seo BY, Ahn SJ

Objective: The purpose of this study was to compare the differences in dentoskeletal and soft tissue changes following conventional tooth-borne rapid maxillary expansion (RME) between adolescents and adults. Methods: Dentoskeletal...
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Proposed parameters of optimal central incisor positioning in orthodontic treatment planning: A systematic review

Sangalli L, Dalessandri D, Bonetti S, Mandelli G, Visconti L, Savoldi F

Objective: Planning of incisal position is crucial for optimal orthodontic treatment outcomes due to its consequences on facial esthetics and occlusion. A systematic summary of the proposed parameters is presented....
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Effect of extraction treatment on upper airway dimensions in patients with bimaxillary skeletal protrusion relative to their vertical skeletal pattern

Cho HN, Yoon HJ, Park JH, Park YG, Kim SJ

Objective: To investigate dimensional changes in regional pharyngeal airway spaces after premolar extraction in bimaxillary skeletal protrusion (BSP) patients according to vertical skeletal pattern, and to further identify dentoskeletal risk...
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Differences in mandibular condyle and glenoid fossa morphology in relation to vertical and sagittal skeletal patterns: A cone-beam computed tomography study

Noh KJ, Baik HS, Han SS, Jang W, Choi YJ

Objective: This study aimed to evaluate the following null hypothesis: there are no differences in the morphology of the temporomandibular joint (TMJ) structures in relation to vertical and sagittal cephalometric...
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Relationship between rotational disc displacement of the temporomandibular joint and the dentoskeletal morphology

Park SH, Han WJ, Chung DH, An JS, Ahn SJ

Objective: The purpose of this study was to evaluate the relationship between rotational disk displacement (DD) of the temporomandibular joint (TMJ) and the dentoskeletal morphology. Methods: Women aged > 17...
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Evaluation of a multi-stage convolutional neural network-based fully automated landmark identification system using cone-beam computed tomographysynthesized posteroanterior cephalometric images

Kim MJ, Liu Y, Oh SH, Ahn HW, Kim SH, Nelson G

Objective: To evaluate the accuracy of a multi-stage convolutional neural network (CNN) model-based automated identification system for posteroanterior (PA) cephalometric landmarks. Methods: The multi-stage CNN model was implemented with a...
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Relationship between vertical components of maxillary molar and craniofacial frame in normal occlusion: Cephalometric calibration on the vertical axis of coordinates

Han AR, Kim J, Yang IH

Objective: The aim of this study was to evaluate the correlation between the vertical position of maxillary first molar and vertical skeletal measurements in lateral cephalograms by using new linear...
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Three-dimensional evaluation of the correlation between lip canting and craniofacial planes

Kim JY, Park HK, Shin SW, Park JH, Jung HD, Jung YS

Objective: This study aimed to analyze the correlation of horizontal and sagittal planes used in two-dimensional diagnosis with lip canting by using threedimensional (3D) analysis. Methods: Fifty-two patients (25 men,...
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Evaluation of cephalometric characteristics and skeletal maturation of the cervical vertebrae and hand-wrist in girls with central precocious puberty

Kang ST, Choi SH, Kim KH, Hwang CJ

Objective: This study aimed to evaluate the differences in cephalometric characteristics and skeletal maturation in girls with central precocious puberty (CPP) via lateral and hand-wrist radiographs. We also aimed to...
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Three-dimensional cone beam computed tomography analysis of temporomandibular joint response to the Twin-block functional appliance

Jiang YY, Sun L, Wang H, Zhao CY, Zhang WB

OBJECTIVE: To propose a three-dimensional (3D) method for evaluating temporomandibular joint (TMJ) changes during Twin-block treatment. METHODS: Seventeen patients with Class II division 1 malocclusion treated using Twin-block and nine untreated...
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Distalization with a modified C-palatal plate for severe upper crowding and a missing lower incisor

Park JH, Saito T, Yoo SK, Alfaifi M, Kook YA

This case report presents the orthodontic treatment of a 25-year-old patient with skeletal Class II and severe maxillary arch crowding, moderate mandibular arch crowding, anterior crossbite, and a missing lower...
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Comparison of three midsagittal planes for three-dimensional cone beam computed tomography head reorientation

Lee EH, Yu HS, Lee KJ, Han SS, Jung HD, Hwang CJ

OBJECTIVE: This study compared three prominent midsagittal planes (MSPs) to identify the MSP that best approximates the true symmetrical MSP. METHODS: Forty-three patients (mean age, 23.0 ± 8.20 years) were grouped...
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Dentofacial transverse development in Koreans according to skeletal maturation: A cross-sectional study

Hwang S, Noh Y, Choi YJ, Chung C, Lee HS, Kim KH

OBJECTIVE: The aim of this study was to establish the normative data of dentofacial transverse dimensions according to the skeletal maturation stage in Korean adolescents with good occlusion, assess gender...
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The genial tubercle: A prospective novel landmark for the diagnosis of mandibular asymmetry

Lee SY, Choi DS, Jang I, Song GS, Cha BK

INTRODUCTION: Identifying menton (Me) on posteroanterior cephalograms and three-dimensional (3D) cone-beam computed tomography (CBCT) images is difficult, because the midpoint of the symphyseal area is not identifiable after the mandibular...
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Comparison of postoperative changes in the distal and proximal segments between conventional and sliding mini-plate fixation following mandibular setback

Kim SS, Kwak KH, Ko CC, Park SB, Son WS, Kim YI

OBJECTIVE: The purpose of the present study was to evaluate the postoperative three-dimensional (3D) changes in the proximal segments after mandibular setback sagittal split ramus osteotomy and to compare the...
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Sphenoid bone changes in rapid maxillary expansion assessed with cone-beam computed tomography

Stepanko L, Lagravère MO

OBJECTIVE: Rapid maxillary expansion (RME) is used to expand the maxilla and increase arch perimeter; yet, there are few reports on its effects on the sphenoid bone. With cone-beam computed...
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Treatment effects of mandibular total arch distalization using a ramal plate

Yu J, Park JH, Bayome M, Kim S, Kook YA, Kim Y, Kim CH

OBJECTIVE: The purpose of this study was to evaluate treatment effects after distalization of the mandibular dentition using ramal plates through lateral cephalograms. METHODS: Pre- and post-treatment lateral cephalograms and dental...
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Comparison of cone-beam computed tomography cephalometric measurements using a midsagittal projection and conventional two-dimensional cephalometric measurements

Jung PK, Lee GC, Moon CH

OBJECTIVE: This study investigated whether it is possible to use a two-dimensional (2D) standard in three-dimensional (3D) analysis, by comparing the angles and lengths measured from a midsagittal projection in...
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