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Dive into the research topics where HyeRan Choo is active.

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Featured researches published by HyeRan Choo.


American Journal of Orthodontics and Dentofacial Orthopedics | 2010

Distalization of the mandibular dentition with mini-implants to correct a Class III malocclusion with a midline deviation

Kyu-Rhim Chung; Seong-Hun Kim; HyeRan Choo; Yoon-Ah Kook; Jason B. Cope

This article describes the orthodontic treatment for a young woman, aged 23 years 5 months, with a Class III malocclusion and a deviated midline. Two orthodontic mini-implants (C-implants, CIMPLANT Company, Seoul, Korea) were placed in the interdental spaces between the mandibular second premolars and first molars. The treatment plan consisted of distalizing the mandibular dentition asymmetrically and creating space for en-masse retraction of the mandibular anterior teeth. C-implants were placed to provide anchorage for Class I intra-arch elastics. The head design of the C-implant minimizes gingival irritation during orthodontic treatment. Sliding jigs were applied buccally for distalization of the mandibular posterior teeth. The active treatment period was 18 months. Normal overbite and overjet were obtained, and facial balance was improved.


American Journal of Orthodontics and Dentofacial Orthopedics | 2009

TAD, a misnomer?

HyeRan Choo; Seong-Hun Kim; John C. Huang

1. O’Brien K, Wright J, Conboy F, Appelbe P, Davies L, Connolly I, et al. Early treatment for Class II Division 1 malocclusion with the Twin-block appliance: a multi-center, randomized, controlled trial. Am J Orthod Dentofacial Orthop 2009;135:573-9. 2. Hayes JL. Economic and ethics of two-phase treatment. J Clin Orthod 2008;42:393-4. 3. Hayes JL. Evidence-based orthodontics. Am J Orthod Dentofacial Orthop 2008;133:637. 4. Hayes JL. Design flaws in some randomized trials. Am J Orthod Dentofacial Orthop 2008;134:466-7. 5. Hayes JL. One phase vs 2-phase treatment. Am J Orthod Dentofacial Orthop 2005;128:557-8. 6. Petrén S, Bondemark L. Authors’ response. Am J Orthod Dentofacial Orthop 2008;134:467-8. 7. Tulloch JFC, Proffit WR, Phillips C. Outcomes in a 2-phase randomized clinical trial of early Class II treatment. Am J Orthod Dentofacial Orthop 2004;125:657-67. 8. Wheeler T, McGorray SP, Dolce C, King GJ. The timing of Class II treatment. Am J Orthod Dentofacial Orthop 2006;129(Suppl): S66-70. 9. Harrison JE, O’Brien KD, Worthington HV. Orthodontic treatment for prominent upper front teeth in children. Cochrane Database of Systematic Reviews 2007;(Issue 3). Art. No.: CD003452. DOI:10. 1002/14651858.CD003452.pub2.


American Journal of Orthodontics and Dentofacial Orthopedics | 2007

Where have all the jobs gone

HyeRan Choo

Just as all the flower children in the 1960’s protested the Vietnam War with the song “Where Have All The Flowers Gone” we at CPAI protest the near universal belief that the recovery, which began in December 2001, is on track and sustainable. An economically sustainable, self-operating recovery cannot occur without job creation and folks, its nowhere in sight. Oh, there will be some increases. For example over the last 5 months, 278,000 (55,600 per month), however, it takes approximately 150,000 per month to employ new entrants and at least another 150,000 to cut into the backlog of the unemployed.


Journal of the American Dental Association | 2010

Practical applications of cone-beam computed tomography in orthodontics

James Mah; John C. Huang; HyeRan Choo


Seminars in Orthodontics | 2011

Advanced Applications of Cone Beam Computed Tomography in Orthodontics

James Mah; Liu Yi; Reyes C. Huang; HyeRan Choo


Korean Journal of Orthodontics | 2011

Histologic assessment of the biological effects after speedy surgical orthodontics in a beagle animal model: a preliminary study

Hong-Suk Kim; Young-Jun Lee; Young-Guk Park; Kyu-Rhim Chung; Yoon-Goo Kang; HyeRan Choo; Seong-Hun Kim


Korean Journal of Orthodontics | 2011

The effects of different pilot-drilling methods on the mechanical stability of a mini-implant system at placement and removal: a preliminary study

Il-Sik Cho; HyeRan Choo; Seong-Kyun Kim; Yun-Seob Shin; Duck-Su Kim; Seong-Hun Kim; Kyu-Rhim Chung; John C. Huang


Seminars in Orthodontics | 2011

Class III Correction Using Biocreative Therapy (C-Therapy)

Kyu-Rhim Chung; Seong-Hun Kim; HyeRan Choo


American Journal of Orthodontics and Dentofacial Orthopedics | 2009

Editor's Summary and Q&A: Cone-beam computed tomography evaluation of orthodontic miniplate anchoring screws in the posterior maxilla

Gyu-Tae Kim; Seong-Hun Kim; Yong-Suk Choi; Young-Joon Park; Kyu-Rhim Chung; Kyung-Eun Suk; HyeRan Choo; John C. Huang


대한치과교정학회지 | 2011

Histologic assessment of the biological effects after speedy surgical orthodontics in a beagle animal model

Hong-Suk Kim; Young-Jun Lee; Young-Guk Park; Yoon-Goo Kang; HyeRan Choo; Seong-Hun Kim; Kyu-Rhim Chung

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Seong-Hun Kim

Seoul National University

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John C. Huang

University of California

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Il-Sik Cho

Seoul National University

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Seong-Kyun Kim

Seoul National University

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Yoon-Goo Kang

Catholic University of Korea

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