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Clinical effects of different prescriptions on the inclination of maxillary and mandibular incisors by using passive self-ligating brackets

Savoldi F, Sangalli L, Ghislanzoni LTH, Dalessandri D, Gu M, Mandelli G, Paganelli C

Objective: Controlling the incisal inclination is fundamental in orthodontics. However, the relationship between the inclination prescription and its clinical outcome is not obvious, and the incisal inclination changes generated by...
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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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Comparison of Reproducibility of Linear Measurements on Digital Models among Intraoral Scanners, Desktop Scanners, and Cone-beam Computed Tomography

Jo DW, Kim M, Kim RH, Yi YJ, Lee NK, Yun PY

Purpose: Intraoral scanners, desktop scanners, and cone-beam computed tomography (CBCT) are being used in a complementary way for diagnosis and treatment planning. Limited patient-based results are available about dimensional reproducibility...
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Three-dimensional evaluation of the transfer accuracy of a bracket jig fabricated using computer-aided design and manufacturing to the anterior dentition: An in vitro study

Park JH, Choi JY, Kim SH, Kim SJ, Lee KJ, Nelson G

Objective: To evaluate the accuracy of a one-piece bracket jig system fabricated using computer-aided design and manufacturing (CAD/CAM) by employing three-dimensional (3D) digital superimposition. Methods: This in vitro study included...
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Innovative customized CAD/CAM nickel-titanium lingual retainer versus standard stainless-steel lingual retainer: A randomized controlled trial

Gelin E, Seidel L, Bruwier A, Albert A, Charavet C

Objective: To compare computer-aided design and computer-aided manufacturing (CAD/CAM) customized nitinol retainers with standard stainlesssteel fixed retainers over a 12-month study period. Methods: This randomized controlled trial (RCT) was conducted...
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Unilateral maxillary central incisor root resorption after orthodontic treatment for Angle Class II, division 1 malocclusion with significant maxillary midline deviation: A possible correlation with root proximity to the incisive canal

Imamura T, Uesugi S, Ono T

Root resorption can be caused by several factors, including contact with the cortical bone. Here we report a case involving a 21-year-old female with Angle Class II, division 1 malocclusion...
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Accuracy and reliability of measurements performed using two different software programs on digital models generated using laser and computed tomography plaster model scanners

Camardella LT, Ongkosuwito EM, Penning EW, Kuijpers-Jagtman AM, Vilella OV, Breuning K

OBJECTIVE: The aim of this study was to compare the accuracy and reliability of measurements performed using two different software programs on digital models generated using two types of plaster...
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Three-dimensional analysis of tooth movement in Class II malocclusion treatment using arch wire with continuous tip-back bends and intermaxillary elastics

Lee JY, Choi SK, Kwon TH, Kang KH, Kim SC

OBJECTIVE: The aim of this study was to analyze three-dimensional (3D) changes in maxillary dentition in Class II malocclusion treatment using arch wire with continuous tip-back bends or compensating curve,...
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In-vitro assessment of the accuracy and reliability of mandibular dental model superimposition based on voxel-based cone-beam computed tomography registration

Han G, Li J, Wang S, Liu Y, Wang X, Zhou Y

OBJECTIVE: This study was performed to evaluate the accuracy and reliability of a newly designed method to achieve mandibular dental model superimposition, using voxel-based cone-beam computed tomography (CBCT) registration. METHODS: Fourteen...
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Long-term stability of maxillary and mandibular arch dimensions when using rapid palatal expansion and edgewise mechanotherapy in growing patients

Kim KB, Doyle RE, Araújo EA, Behrents R, Oliver DR, Thiesen G

OBJECTIVE: The purpose of this study was to assess the long-term stability of rapid palatal expansion (RPE) followed by full fixed edgewise appliances. METHODS: This study included 67 patients treated using...
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Comparison of Three-Dimensional Accuracy between Digital Models Obtained from Impression Scan and Model Scan

Kim DB, Kim JM, Kim YL

The purpose of the study is to compare and analyze the accuracy of digital images obtained from impression and stone model with model scanner and to find out clinical effectiveness. A...
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Reference points suitable for evaluation of the additional arch length required for leveling the curve of Spee

Cho YH, Lim SH, Gang SN

OBJECTIVE: The additional arch length required for leveling (AALL) the curve of Spee (COS) can be estimated by subtracting the two-dimensional (2D) arch circumference, which is the projection of the...
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Accuracy of Bolton analysis measured in laser scanned digital models compared with plaster models (gold standard) and cone-beam computer tomography images

Kim J, Lagravere

OBJECTIVE: The aim of this study was to compare the accuracy of Bolton analysis obtained from digital models scanned with the Ortho Insight three-dimensional (3D) laser scanner system to those...
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A comparison of the precision of three-dimensional images acquired by 2 digital intraoral scanners: effects of tooth irregularity and scanning direction

Anh JW, Park JM, Chun YS, Kim M, Kim M

OBJECTIVE: The purpose of this study was to compare the precision of three-dimensional (3D) images acquired using iTero(R) (Align Technology Inc., San Jose, CA, USA) and Trios(R) (3Shape Dental Systems,...
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A reliable method for evaluating upper molar distalization: Superimposition of three-dimensional digital models

Nalcaci R, Kocoglu-Altan AB, Bicakci AA, Ozturk F, Babacan H

OBJECTIVE: The aim of this study was to evaluate the reliability of measurements obtained after the superimposition of three-dimensional (3D) digital models by comparing them with those obtained from lateral...
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Surgery-first approach using a three-dimensional virtual setup and surgical simulation for skeletal Class III correction

Im J, Kang SH, Lee JY, Kim MK, Kim JH

A 19-year-old woman presented to our dental clinic with anterior crossbite and mandibular prognathism. She had a concave profile, long face, and Angle Class III molar relationship. She showed disharmony...
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Comparison of mandibular arch forms of Korean and Vietnamese patients by using facial axis points on three-dimensional models

Lee KJ, Trang VT, Bayome M, Park JH, Kim Y, Kook YA

OBJECTIVE: This study was aimed at comparing the mandibular arch forms of Korean and Vietnamese patients by using facial axis (FA) points on three-dimensional (3D) models. METHODS: Mandibular casts of 68...
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Validity of palatal superimposition of 3-dimensional digital models in cases treated with rapid maxillary expansion and maxillary protraction headgear

Choi JI, Cha BK, Jost-Brinkmann PG, Choi DS, Jang IS

OBJECTIVE: The purpose of this study was to evaluate the validity of the 3-dimensional (3D) superimposition method of digital models in patients who received treatment with rapid maxillary expansion (RME)...
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Differences in molar relationships and occlusal contact areas evaluated from the buccal and lingual aspects using 3-dimensional digital models

Jang SY, Kim M, Chun YS

OBJECTIVE: The aims of this study were to use a 3-dimensional (3D) system to compare molar relationship assessments performed from the buccal and lingual aspects, and to measure differences in...
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A method for mandibular dental arch superimposition using 3D cone beam CT and orthodontic 3D digital model

Park TJ, Lee SH, Lee KS

OBJECTIVE: The purpose of this study was to develop superimposition method on the lower arch using 3-dimensional (3D) cone beam computed tomography (CBCT) images and orthodontic 3D digital modeling. METHODS: Integrated...
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