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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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Quantitative cone-beam computed tomography evaluation of hard and soft tissue thicknesses in the midpalatal suture region to facilitate orthodontic mini-implant placement

Oh SH, Lee SR, Choi JY, Kim SH, Hwang EH, Nelson G

Objective: To identify the most favorable sites that optimize the initial stability and survival rate of orthodontic mini-implants, this study measured hard and soft tissue thicknesses in the median and...
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Treatment of a Horizontally Impacted and Dilacerated Maxillary Central Incisor and an Impacted Canine

Kim SH, Chung KR, Hwang EH, Nelson G

During orthodontic treatment of impacted teeth, use of appropriate anchorage against the traction force is important. Tooth anchorage with multi-bracket appliances is commonly used but sometimes it causes unwanted movements...
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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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Alveolar bone thickness and fenestration of incisors in untreated Korean patients with skeletal class III malocclusion: A retrospective 3-dimensional cone-beam computed tomography study

Oh SH, Nahm KY, Kim SH, Nelson G

PURPOSE: The purpose of this study was to evaluate vertical bone loss and alveolar bone thickness in the maxillary and mandibular incisors of patients with skeletal class III malocclusion. This...
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Contributors to Fatigue of MineWorkers in the South African Gold and Platinum Sector

Pelders J, Nelson G

BACKGROUND: Mine workers in South Africa face challenges relating to poor health and safety, including fatigue risks, and poor socioeconomic and living conditions. Fatigue results in impaired mental and physical...
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Effects of a new type of clear overlay retainer on occlusal contacts

Kim KY, Ahn HW, Kim SH, Nelson G

The popularity of clear overlay retainers (CORs) has increased recently because of their advantages such as better esthetics, cost effectiveness, easy fabrication, and good compliance. However, a deficiency in posterior...
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Displacement pattern of the anterior segment using antero-posterior lingual retractor combined with a palatal plate

Seo KW, Kwon SY, Kim KA, Park KH, Kim SH, Ahn HW, Nelson G

OBJECTIVE: To evaluate and compare the effects of two appliances on the en masse retraction of the anterior teeth anchored by temporary skeletal anchorage devices (TSADs). METHODS: The sample comprised 46...
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En-masse retraction with a preformed nickel-titanium and stainless steel archwire assembly and temporary skeletal anchorage devices without posterior bonding

Jee JH, Ahn HW, Seo KW, Kim SH, Kook YA, Chung KR, Nelson G

OBJECTIVE: To evaluate the therapeutic effects of a preformed assembly of nickel-titanium (NiTi) and stainless steel (SS) archwires (preformed C-wire) combined with temporary skeletal anchorage devices (TSADs) as the sole...
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Torque control during lingual anterior retraction without posterior appliances

Mo SS, Kim SH, Sung SJ, Chung KR, Chun YS, Kook YA, Nelson G

OBJECTIVE: To evaluate the factors that affect torque control during anterior retraction when utilizing the C-retractor with a palatal miniplate as an exclusive source of anchorage without posterior appliances. METHODS: The...
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Correction of dental Class III with posterior open bite by simple biomechanics using an anterior C-tube miniplate

Ahn HW, Chung KR, Kang SM, Lin L, Nelson G, Kim SH

In the correction of dental Class III molar relationship in skeletal Class II patients, uprighting of the mandibular posterior segments without opening the mandible is an important treatment objective. In...
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Three-dimensional finite element analysis for determining the stress distribution after loading the bone surface with two-component mini-implants of varying length

Choi B, Lee DO, Mo SS, Kim SH, Park KH, Chung KR, Nelson G, Han SH

OBJECTIVE: To evaluate the extent and aspect of stress to the cortical bone after application of a lateral force to a two-component orthodontic mini-implant (OMI, mini-implant) by using three-dimensional finite...
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Severe bidentoalveolar protrusion treated with lingual Biocreative therapy using palatal miniplate

Chung KR, Jeong DM, Park HJ, Kim SH, Nelson G

This case report describes the treatment of a 23-year, 8-month-old female patient with a Class II malocclusion who showed severe bidentoalveolar protrusion and anterior crowding. The treatment plan consisted of...
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Severe bimaxillary protrusion with adult periodontitis treated by corticotomy and compression osteogenesis

Kim SH, Lee KB, Chung KR, Nelson G, Kim TW

This paper describes the case of a 50-year-old female with a Class II malocclusion who presented with severe bimaxillary protrusion and generalized alveolar bone loss due to adult periodontitis. The...
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